CN1580450A - A cavity formwork component for cast-in-place concrete - Google Patents

Abstract

A cast-in-place concrete hollow shuttering member comprises an upper board (1), peripheral side panels (2) and a lower bottom (3), the upper board (1), the peripheral side panels (2) and the lower bottom (3) enclose a polyhedral hollow shuttering member, the lower bottom (3) extends out from at least one peripheral side panel (2) to form a cantilever slab (4), characterized in that at least one stiffening rib plate (5) is arranged in the hollow shuttering member. Thus, because the cavity shuttering member is internally provided with the stiffening rib plate, the cavity shuttering member has high strength and rigidity, is not easy to have the phenomenon of the damage of the cavity shuttering member, and can participate in the stress and force transmission of the floor system; meanwhile, the hollow shuttering member is characterized by simple structure, high strength, good deformation resistance, good vibration resistance, easy manufacture, low cost, convenient construction, fast construction speed, etc., thereby achieving the purpose of the invention, and is suitable for hollow building covers, roofs, walls, foundation soleplates and hollow bridges of cast-in-situ reinforced concrete or prestressed reinforced concrete, particularly hollow flat slabs.

Description

A cavity formwork component for cast-in-place concrete

(1) Technical field

The invention relates to a cavity formwork component for cast-in-place concrete.

(2) Background technology

At present, the cast-in-place concrete hollow floor is a widely used floor structure. The lightweight permanent tire molds filled in it include various hollow tubes and boxes, and the boxes are hollow or solid. For example, the patent No. ZL99249798.1, which the applicant applied for on November 29, 1999, is a utility model patent named "fiber-reinforced thin-walled member for reinforced concrete filling", which discloses a thin-walled formwork member, including an upper plate, The surrounding side walls, the lower bottom, and the upper plate, the surrounding side walls and the lower bottom form a polyhedral cavity. Another example is the patent No. ZL00203695.9 applied by Liang Jun, Shijiazhuang City, Hebei Province on February 23, 2000, and the name is called "combined concrete hidden rib floor cover plate" utility model patent, which discloses a formwork member in its specification sheet. It can be solid or hollow, and its shape can be made into rectangle, circle, polygon and other shapes according to design requirements. Another example is the patent No. ZL93206310.1 applied by Yu Shaohua in Tianjin on March 20, 1993, and the name is called "formwork member" utility model patent. It also discloses a thin-walled formwork member, which combines side walls with upper , The lower bottom is made of a fully enclosed fasting polyhedron structure, and the mold shell is equipped with reinforcing ribs, and is made of GRC or magnesium chloride GRC or sand-free ceramsite cement. Another example is that the application number applied by the applicant on November 23, 2001 is 01140106.0, the publication number is CN1356442, and the name is called "a kind of cavity structure formwork for cast-in-place reinforced concrete floor slab" patent application for invention. The cavity structure disclosed by it The formwork includes "the upper plate, the surrounding side walls, and the lower bottom, and the upper plate, the surrounding side walls, and the lower bottom form a polyhedral cavity formwork member. This cavity formwork member has light weight, high strength, simple structure, Convenient construction and transportation. At the same time, in actual use, the lower bottom can participate in the force, and can hang heavy objects without cracking the cast-in-place prefabricated joint surface. In addition, this kind of polyhedral cavity formwork member, for The construction formwork is saved, and the lower bottom can also protrude from the surrounding side walls to form a pick-up plate, which can be used as a structural formwork for the cast-in-place concrete ribs between the cavity formwork components, which is conducive to improving the construction speed and reducing the construction cost. At the same time, This cavity formwork component also has the characteristics of simple structure, high strength, excellent deformation resistance, vibration resistance, easy manufacture, and low cost. However, there is no reinforcing structure in this cavity formwork component, so the cavity formwork The overall strength and rigidity of the components are poor, and the cavity formwork components are prone to damage. After being applied to the cast-in-place concrete hollow floor, it cannot participate in the force and transmission of the hollow floor. Therefore, the development of a A new type of cavity formwork member for cast-in-place concrete is in urgent need.

(3) Contents of the invention

The purpose of the present invention is to provide a cavity formwork member for cast-in-place concrete, which has the characteristics of high strength, high rigidity, not easy to be damaged, and can participate in the force bearing and transmission of the floor.

The solution of the present invention is on the basis of prior art, comprises upper plate, surrounding side wall, lower bottom, and upper plate, surrounding side wall, lower bottom encircle polyhedron cavity formwork member, and lower bottom is from at least one surrounding side The wall protrudes to form a pick plate, which is characterized in that at least one stiffening rib is arranged in the cavity formwork member. In this way, since the cavity formwork member is provided with stiffening ribs, the cavity formwork member has high strength and high rigidity, is not prone to breakage of the cavity formwork member, and can participate in the force bearing and transmission of the floor At the same time, the cavity formwork member also has the characteristics of simple structure, high strength, excellent deformation resistance, anti-vibration performance, easy manufacture, low cost, convenient construction, fast construction speed, etc., thereby achieving the purpose of the present invention and being suitable for current It is suitable for hollow floors, roofs, walls, foundation slabs and hollow bridges of poured reinforced concrete or prestressed reinforced concrete, especially for hollow beamless floors.

The present invention is also characterized in that the lower bottom is a laminated lower bottom composed of templates and the lower bottom. In this way, the cavity formwork with an opening on one side is prefabricated first, and the template is embedded in the opening, and then the bottom slurry is laid on the template. After curing to the specified age, the bottom molding mold is removed to obtain the bottom bottom. The bottom is a cavity formwork member with laminated templates; the laminated lower bottom formed by the formwork and the lower bottom has the characteristics of high strength and convenient production, which can realize flow production and greatly reduce the cost of cavity formwork components , which is conducive to the popularization and application of cavity formwork components.

The present invention is also characterized in that the upper plate or the surrounding side walls or pick-up plates are provided with convenient transporting parts. The handling parts are handles, hooks, rings or other devices. In this way, the cavity formwork components can be stacked, transferred, hoisted and constructed very conveniently, reducing the work difficulty and work intensity of the above-mentioned processes.

The present invention is also characterized in that the lower bottom protrudes from the adjacent two sides of the surrounding side walls to form an L-shaped pick plate, or the lower bottom protrudes from the surrounding side walls to form a square ring-shaped pick plate. In this way, when the cavity formwork component is applied to the cast-in-situ concrete hollow floor, the protruding pick plate can replace the construction formwork, which reduces the loss of the formwork, and at the same time, saves the installation process of the formwork, greatly improving the construction efficiency , reducing the overall cost of the floor.

The present invention is also characterized in that at least one side of the upper plate protrudes from a pick-up plate. In this way, when the cavity formwork component is applied to the cast-in-place concrete hollow floor, the protruding pick plate can form a laminated floor slab with the cast-in-place concrete, which reduces the amount of cast-in-place concrete and the overall cost of the floor; at the same time , when the cavity formwork member is applied to the hollow wall, the pick-up plates protruding from the upper plate and the lower bottom can be used as formwork on both sides of the wall, which can greatly improve the construction efficiency and reduce the construction cost.

The present invention is also characterized in that said stiffening ribs are composite stiffening ribs or hollow stiffening ribs. In this way, the strength of the cavity formwork member using composite stiffeners or hollow stiffeners has been greatly improved, but its own weight has not increased significantly, and the weight is very light. At the same time, the structure is simple, and the transportation and construction are convenient. After the formwork member is applied to the cast-in-situ concrete hollow floor, the weight of the corresponding floor is greatly reduced, the performance of the floor is improved, and the material cost of the floor is also reduced.

The present invention is also characterized in that said stiffening ribs are composite stiffening ribs sandwiched with lightweight materials. The lightweight material can be foam plastic, expanded perlite, expanded vermiculite, foamed or aerated lightweight concrete, rock wool, mineral wool, glass wool, ceramsite or ceramsite concrete, etc. In this way, the stiffener is sandwiched with lightweight materials, so its weight is far less than that of ordinary stiffeners of the same volume, making the cavity member lighter without affecting its strength. In addition, the insulation, heat insulation, Sound insulation performance is better.

The present invention is also characterized in that the plurality of stiffening ribs are arranged in parallel, orthogonally or obliquely. In this way, when the cavity formwork component is applied to the cast-in-place concrete floor, the arrangement of the stiffening ribs in the cavity component can be diversified to meet the needs of various designs.

The present invention is also characterized in that the stiffeners are exposed outside the cavity formwork member. In this way, when the cavity formwork components are applied to the cast-in-place concrete floor, the exposed stiffeners are combined with the cast-in-place concrete to form a force-bearing structure combining cast-in-place concrete and prefabricated components, making the overall performance of the floor and better mechanical properties.

The present invention is also characterized in that at least one of the upper plate, the surrounding side walls, the lower bottom, the pick plate, and the stiffener contains reinforcements, or the reinforcements are exposed. The reinforcement is at least one of steel bar, steel wire, prestressed tendon, steel mesh, steel wire mesh, fiber, fiber tow, fiber mesh cloth, non-woven fabric, thin metal strip, packing tape, and braided tape. In this way, the above-mentioned reinforcements are contained in the upper plate, the surrounding side walls, the lower bottom, or the pick plate, which greatly improves their strength and rigidity, so that the cavity formwork components are not easily damaged during stacking, transportation, installation, and construction. Small area of damage, because of the connection of reinforcements, does not need to be repaired, and can continue to be put into use. If there are reinforcements on the cavity formwork component exposed outside the cavity formwork component, when the cavity formwork component is applied to the cast-in-place concrete hollow floor, the exposed reinforcement and the cast-in-place concrete can be greatly improved. Improve the gripping force between the cast-in-situ concrete and the cavity formwork components, optimize the performance of the entire hollow floor; at the same time, the exposed reinforcements are also convenient for use as handles, rings or hooks when the cavity formwork components are transported.

The present invention is also characterized in that reinforcements extend into the side walls and are anchored in the lower bottom or the pick-up plate, or there are reinforcements in the lower bottom or pick-up boards that extend into and are anchored in the side walls. In this way, there are reinforcements in the side wall extending into and anchored in the lower bottom or the pick plate, or reinforcements in the lower bottom or the pick plate extend into and anchored in the side wall, thus greatly improving the distance between the side wall and the lower bottom. The connection strength between the cavity formwork components can effectively ensure that the cavity formwork components will not crack, loosen or fall off between the side wall and the lower bottom or the pick plate during transportation, installation, and construction, and the cavity formwork components will be greatly reduced. breakage rate.

The present invention is also characterized in that the horizontal cross-sectional shape of the polyhedral cavity formwork member is a rectangle, a square, a polygon, an arc polygon, a chamfered polygon, an arc polygon, a corrugated shape or a circle. In this way, the diversification of the shape of the polyhedral cavity formwork member makes the cavity formwork member applied to the cast-in-place concrete hollow floor, and correspondingly forms various cast-in-place concrete structures of different shapes, thus making the cast-in-place concrete hollow building The structure of the cover is more reasonable, which is convenient for the design and construction units to choose.

The present invention is also characterized in that at least one of internal corners, chamfers, grooves, pits, holes, boss modules, convex lines, and external corners is provided on the cavity formwork member. In this way, when the cavity formwork components are applied to the cast-in-place concrete hollow floor, the cast-in-place concrete is poured into the grooves, inner corners, chamfers, pits, and holes, and a local cast-in-place concrete reinforcement structure can be formed accordingly; The boss modules, protruding lines, and external corners provided on the cavity formwork member can evacuate the unstressed concrete in the floor, further reduce the weight of the floor itself, save the amount of concrete, and reduce the cost of the floor.

The present invention is also characterized in that the internal angles, chamfers, grooves, and convex lines are arranged in parallel, orthogonal, oblique or vertical intersections. In this way, when the cavity formwork component is applied to the cast-in-place concrete hollow floor, the grooves, internal corners, chamfers, and convex lines on the cavity formwork component are arranged in parallel, orthogonal, oblique or vertical After the concrete is poured, a parallel, orthogonal, oblique or overpass cast-in-place concrete strengthening structure is correspondingly formed, which greatly improves the mechanical properties of the cast-in-place concrete floor.

The present invention is also characterized in that at least one of a stiffening rod and a reinforcing rib is arranged in the closed cavity of the cavity formwork member, or a stiffener is exposed outside the cavity formwork member, or a stiffener is also exposed on the stiffener. reinforcement. In this way, when the cavity formwork member is applied to the cast-in-place concrete hollow floor, the stiffeners, stiffeners, stiffeners or exposed stiffeners and stiffeners arranged in the cavity formwork member can form a concrete structure with the cast-in-place concrete. The composite structure combining pouring and prefabrication optimizes the internal stress system of the cast-in-place concrete floor. If there are reinforcements exposed thereon, the cavity formwork member and the cast-in-place concrete will be bonded more firmly, and the integrity of the floor will be better.

The present invention is also characterized in that lightweight materials are arranged in the closed cavity of the cavity formwork member. In this way, the impact resistance of the cavity formwork member is greatly improved, and the damage rate of the product during construction and application is reduced. At the same time, it also makes the cavity formwork components have better sound insulation, heat insulation, and thermal insulation properties; lightweight materials can be foamed plastics, expanded perlite, expanded vermiculite, foamed or aerated lightweight concrete, rock wool, ore Cotton, glass wool, ceramsite or ceramsite concrete, etc., the variety of lightweight materials makes it easy to obtain nearby materials during production, which is conducive to reducing production costs.

The present invention is also characterized in that at least one of the upper plate or the side wall is a detachable movable part. In this way, it is convenient to check the condition inside the cavity formwork member at any time, and at the same time, it is also possible to partially or completely fill the interior of the cavity formwork member with lightweight materials, or install other components inside the cavity formwork member, such as junction boxes. , water and electricity pipelines, fire sprinklers, etc.

The present invention is also characterized in that at least one of the outer surfaces of the upper plate, the surrounding side walls, and the pick-up plate is a corrugated, zigzag, brushed or rough outer surface. In this way, when the cavity formwork member is applied to the cast-in-place concrete hollow floor, because the surface is corrugated, zigzag, roughened or rough surface, the gap between the prefabricated cavity formwork member and the cast-in-place concrete The bonding force is stronger, which can greatly improve the overall performance of the floor.

The present invention is also characterized in that a positioning member is arranged on the cavity formwork member. The positioning member can be a pull ring, a pull hook, an iron wire, a supporting foot or other devices. In this way, when the cavity formwork components are applied to the cast-in-situ concrete hollow floor, the cavity formwork components can be accurately positioned to prevent the cavity formwork components from floating and shifting during pouring of concrete. The steel bar can be limited to effectively ensure the pouring quality of the floor.

The present invention is also characterized in that the cavity formwork components are provided with connectors for connecting the cavity formwork components with each other. Connectors can be steel bar, steel mesh, steel wire, steel wire mesh, angle steel, channel steel, L-shaped steel, T-shaped steel, ferrule, bolt, male and female groove, socket piece, sawtooth piece, convex groove, groove, bayonet, card Covers, holes, embedded iron parts, etc. In this way, when the cavity formwork components are applied to the cast-in-place concrete hollow floor, the connectors provided on the cavity formwork components can effectively and reliably control the distance between the cavity formwork components, and control the distance between the cast-in-place concrete ribs. The width and height ensure the pouring quality of the internal structure of the floor; at the same time, it is also conducive to the connection and positioning of the cavity formwork components and speed up the construction.

The present invention is also characterized in that at least two or more cavity formwork components are connected as a whole through pick-up plates, and an inner rib cavity is formed between the cavity formwork components. In this way, when the cavity formwork member is applied to the cast-in-place concrete floor, the cast-in-place concrete enters the inner rib cavity to form the cast-in-place concrete inner rib, which improves the mechanical properties of the floor; at the same time, the cavity formwork member The cavity formwork assembly is formed by connecting the pick-up plates into one body, thus greatly improving the construction efficiency and construction speed of the floor.

The present invention is also characterized in that fixed or movable braces are arranged in the mold cavity of the inner rib. The supporting parts can be rods, cables, plates, tendons, wires, thin strips, piers, blocks, etc. In this way, due to the provision of braces, the damage rate of the grouped cavity formwork components is greatly reduced due to the support or tie effect of the braces during the transportation and construction of the grouped cavity formwork components. When it is placed in the cast-in-situ concrete hollow floor, the installation and construction speed is fast, the work efficiency is high, and the construction speed of the floor can be greatly improved.

(4) Description of drawings

Fig. 1 is a schematic structural diagram of Embodiment 1 of the present invention. In the accompanying drawings, 1 is the upper plate, 2 is the surrounding side wall, 3 is the lower bottom, 4 is the pick plate, and 5 is the stiffener plate. In the following drawings, those with the same number have the same description. As shown in Figure 1, the upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding sidewall 2 to form a pick plate 4, and the cavity formwork member Stiffeners 5 are arranged inside.

Fig. 2 is a schematic structural view of Embodiment 2 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are arranged inside the cavity formwork member, and its lower bottom 3 is a laminated lower bottom composed of template 6 and lower bottom 3 .

Fig. 3 is a schematic structural view of Embodiment 3 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are arranged in the cavity formwork member, and a carrier 7 for easy transportation is arranged on the pick plate 4, and the carrier 7 in the figure is a handle.

Fig. 4 is a schematic structural view of Embodiment 4 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. A stiffening rib 5 is arranged inside the cavity formwork member, and its lower bottom 3 protrudes from adjacent two sides of the surrounding side wall 2 to form an L-shaped pick plate 4 .

Fig. 5 is a schematic structural view of Embodiment 5 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are arranged inside the cavity formwork member, and its upper plate 1 also protrudes from the surrounding side walls 2 to form a pick plate 4 .

Fig. 6 is a schematic structural view of Embodiment 6 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. A stiffening rib 5 is arranged inside the cavity formwork member, and the stiffening rib 5 is a composite stiffening rib.

Fig. 7 is a schematic structural view of Embodiment 7 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. A stiffening rib 5 is arranged inside the cavity formwork member, and the stiffening rib 5 is a composite stiffening rib sandwiched with a lightweight material 8, and the light material 8 shown in the figure is expanded perlite.

Fig. 8 is a schematic structural view of Embodiment 8 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are arranged in the cavity formwork member, and a plurality of stiffening ribs 5 arranged parallel to each other are arranged in the cavity formwork member.

Fig. 9 is a schematic structural view of Embodiment 9 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. A stiffening rib 5 is arranged inside the cavity formwork member, and part of the stiffener plate 5 is exposed outside the cavity formwork member.

Fig. 10 is a schematic structural view of Embodiment 10 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are arranged in the cavity formwork member, and reinforcements 9 are arranged in the upper plate 1, the surrounding side walls 2, the lower bottom 3 and the pick plate 4. The reinforcement 9 shown in the figure is a fiber mesh cloth, and at the same time , there are thin strip reinforcements 9 exposed on the upper plate 1 and pick plate 4.

Fig. 11 is a schematic structural view of Embodiment 11 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are arranged inside the cavity formwork member, and the horizontal section shape of the cavity member is a chamfered polygon.

Fig. 12 is a schematic structural view of Embodiment 12 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are provided inside the cavity formwork member, and chamfers 11, grooves 12, pits 13, holes 14, boss modules 15 and male corners 17 are also provided on other parts of the cavity formwork member. .

Fig. 13 is a schematic structural view of Embodiment 13 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are arranged inside the cavity formwork member, and internal corners 10 , chamfers 11 , grooves 12 and convex strips 16 are also provided on other parts of the cavity formwork member.

Fig. 14 is a schematic structural view of Embodiment 14 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are arranged inside the cavity formwork member, and stiffeners 18 and ribs 19 are also provided in the closed cavity of the cavity formwork member. At the same time, part of the stiffener 18 is exposed outside the cavity formwork member .

Fig. 15 is a schematic structural view of Embodiment 15 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are arranged in the cavity formwork member, and light material 8 is arranged in the closed cavity of the cavity formwork member. The light material 8 shown in the figure is expanded perlite.

Fig. 16 is a schematic structural view of Embodiment 16 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. A stiffening rib 5 is arranged inside the cavity formwork member, and its upper plate 1 is a movable and detachable fastening cover plate.

Fig. 17 is a schematic structural view of Embodiment 17 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. A stiffening rib plate 5 is arranged inside the cavity formwork member, and its upper plate 1 and two opposite peripheral side walls 2 have corrugated outer surfaces.

Fig. 18 is a schematic structural view of Embodiment 18 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffeners 5 are arranged inside the cavity formwork member, and a plurality of positioning members 20 are arranged on the cavity formwork member. The positioning members 20 in the figure are supporting positioning blocks.

Fig. 19 is a schematic structural view of Embodiment 19 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffeners 5 are arranged inside the cavity formwork member, and a plurality of connectors 21 for connecting the cavity formwork members to each other are arranged on the cavity formwork member. The connectors 21 shown in the figure are socket type square tube.

Fig. 20 is a schematic structural view of Embodiment 20 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are arranged inside the cavity formwork components, and multiple cavity formwork components are connected as a whole through pick plates 4 , and multiple inner rib cavity 22 are formed between the cavity formwork components.

Fig. 21 is a schematic structural view of Embodiment 21 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are arranged inside the cavity formwork components, and multiple cavity formwork components are connected as a whole through the pick plate 4, and a plurality of inner rib cavity 22 is formed between the cavity formwork components, and the inner rib cavity 22 A plurality of fixed braces 23 are arranged inside, and the braces 23 shown in the figure are braced rods.

(5) Specific implementation methods

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in the accompanying drawings, the present invention includes an upper plate 1, surrounding side walls 2, and a lower bottom 3. The upper plate 1, surrounding side walls 2, and lower bottom 3 form a polyhedral cavity formwork member, and the lower bottom 3 is formed from at least one surrounding The side wall 2 protrudes to form a pick plate 4, which is characterized in that at least one stiffening rib 5 is arranged in the cavity formwork member. Fig. 1 is a schematic structural diagram of Embodiment 1 of the present invention. In the accompanying drawings, 1 is the upper plate, 2 is the surrounding side wall, 3 is the lower bottom, 4 is the pick plate, and 5 is the stiffener plate. In the following drawings, those with the same number have the same description. As shown in Figure 1, the upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding sidewall 2 to form a pick plate 4, and the cavity formwork member Stiffeners 5 are arranged inside.

The present invention is also characterized in that the lower bottom 3 is a laminated lower bottom composed of the template 6 and the lower bottom 3 . Fig. 2 is a schematic structural view of Embodiment 2 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are arranged inside the cavity formwork member, and its lower bottom 3 is a laminated lower bottom composed of template 6 and lower bottom 3 .

The present invention is also characterized in that the upper plate 1 or the surrounding side wall 2 or pick plate 4 is provided with a transporting piece 7 for easy transport. The carrier 7 can be a handle, a hook, a ring or other devices. Fig. 3 is a schematic structural view of Embodiment 3 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are arranged in the cavity formwork member, and a carrier 7 for easy transportation is arranged on the pick plate 4, and the carrier 7 in the figure is a handle.

The present invention is also characterized in that the lower bottom 3 protrudes from the adjacent two sides of the surrounding side wall 2 to form an L-shaped pick plate, or the lower bottom 3 protrudes from the surrounding side wall 2 to form a square pick plate 4. Ring pick plate. Fig. 4 is a schematic structural view of Embodiment 4 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. A stiffening rib 5 is arranged inside the cavity formwork member, and its lower bottom 3 protrudes from adjacent two sides of the surrounding side wall 2 to form an L-shaped pick plate 4 .

The present invention is also characterized in that at least one side of the upper plate 1 is protruded with a pick plate 4 . Fig. 5 is a schematic structural view of Embodiment 5 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are arranged inside the cavity formwork member, and its upper plate 1 also protrudes from the surrounding side walls 2 to form a pick plate 4 .

The present invention is also characterized in that the stiffening ribs 5 are composite stiffening ribs or hollow stiffening ribs. Fig. 6 is a schematic structural view of Embodiment 6 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. A stiffening rib 5 is arranged inside the cavity formwork member, and the stiffening rib 5 is a composite stiffening rib.

The present invention is also characterized in that the stiffening ribs 5 are composite stiffening ribs sandwiching lightweight materials 8 . Fig. 7 is a schematic structural view of Embodiment 7 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. A stiffening rib 5 is arranged inside the cavity formwork member, and the stiffening rib 5 is a composite stiffening rib sandwiched with a lightweight material 8, and the light material 8 shown in the figure is expanded perlite.

The present invention is also characterized in that the plurality of stiffening ribs 5 are arranged in parallel, orthogonally or obliquely. Fig. 8 is a schematic structural view of Embodiment 8 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are arranged in the cavity formwork member, and a plurality of stiffening ribs 5 arranged parallel to each other are arranged in the cavity formwork member.

The present invention is also characterized in that the stiffening ribs 5 are exposed outside the cavity formwork member. Fig. 9 is a schematic structural view of Embodiment 9 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. A stiffening rib 5 is arranged inside the cavity formwork member, and part of the stiffener plate 5 is exposed outside the cavity formwork member.

The present invention is also characterized in that at least one of the upper plate 1, the surrounding side walls 2, the lower bottom 3, the pick plate 4, and the stiffener 5 contains reinforcements 9, or has reinforcements 9 exposed. The reinforcement 9 is at least one of steel bar, steel wire, prestressed tendon, steel mesh, steel wire mesh, fiber, fiber tow, fiber mesh cloth, non-woven fabric, thin metal strip, packing tape, and braided tape. Fig. 10 is a schematic structural view of Embodiment 10 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are arranged in the cavity formwork member, and reinforcements 9 are arranged in the upper plate 1, the surrounding side walls 2, the lower bottom 3 and the pick plate 4. The reinforcement 9 shown in the figure is a fiber mesh cloth, and at the same time , there are thin strip reinforcements 9 exposed on the upper plate 1 and pick plate 4.

The present invention is also characterized in that reinforcements 9 extend into and anchor in the lower bottom 3 or pick plate 4 in the side wall 2, or reinforcements 9 extend in and anchor in the side wall in the lower bottom 3 or pick plate 4. 2 within. As shown in FIG. 10 , there are fiber mesh reinforcements 9 extending into and anchored in the pick plate 4 in the surrounding side walls 2 .

The present invention is also characterized in that the horizontal cross-sectional shape of the polyhedral cavity formwork member is a rectangle, a square, a polygon, an arc polygon, a chamfered polygon, an arc polygon, a corrugated shape or a circle. Fig. 11 is a schematic structural view of Embodiment 11 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are arranged inside the cavity formwork member, and the horizontal section shape of the cavity member is a chamfered polygon.

The present invention is also characterized in that the cavity formwork member is provided with internal corners 10, chamfers 11, grooves 12, pits 13, holes 14, boss modules 15, convex strips 16, and male corners 17. at least one. Fig. 12 is a schematic structural view of Embodiment 12 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are provided inside the cavity formwork member, and chamfers 11, grooves 12, pits 13, holes 14, boss modules 15 and male corners 17 are also provided on other parts of the cavity formwork member. . Fig. 13 is a schematic structural view of Embodiment 13 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are arranged inside the cavity formwork member, and internal corners 10 , chamfers 11 , grooves 12 and convex strips 16 are also provided on other parts of the cavity formwork member.

The present invention is also characterized in that the internal corners 10, chamfers 11, grooves 12, and convex lines 16 are arranged parallel, orthogonal, oblique, or vertically to each other. As shown in Figure 13, the upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding sidewalls 2 to form a pick plate 4, and the cavity formwork member Stiffening ribs 5 are provided, and the internal corners 10, chamfers 11, grooves 12, and protruding lines 16 themselves or each other are arranged in parallel, orthogonal, oblique or vertical intersections.

The present invention is also characterized in that at least one of the stiffening rod 18 and the reinforcing rib 19 is arranged in the closed cavity of the cavity formwork member, or the stiffening rod 18 is exposed outside the cavity formwork member, or the stiffening rod 18 Reinforcement 9 is also exposed on the top. Fig. 14 is a schematic structural view of Embodiment 14 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are arranged inside the cavity formwork member, and stiffeners 18 and ribs 19 are also provided in the closed cavity of the cavity formwork member. At the same time, part of the stiffener 18 is exposed outside the cavity formwork member .

The present invention is also characterized in that a lightweight material 8 is arranged in the closed cavity of the cavity formwork member. Fig. 15 is a schematic structural view of Embodiment 15 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are arranged in the cavity formwork member, and light material 8 is arranged in the closed cavity of the cavity formwork member. The light material 8 shown in the figure is expanded perlite.

The present invention is also characterized in that at least one of the upper plate 1 or the side wall 2 is a detachable movable part. Fig. 16 is a schematic structural view of Embodiment 16 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. A stiffening rib 5 is arranged inside the cavity formwork member, and its upper plate 1 is a movable and detachable fastening cover plate.

The present invention is also characterized in that at least one of the outer surfaces of the upper plate 1 , the surrounding side walls 2 and the pick plate 4 is corrugated, zigzag, brushed or rough. Fig. 17 is a schematic structural view of Embodiment 17 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. A stiffening rib plate 5 is arranged inside the cavity formwork member, and its upper plate 1 and two opposite peripheral side walls 2 have corrugated outer surfaces.

The present invention is also characterized in that a positioning member 20 is arranged on the cavity formwork member. Fig. 18 is a schematic structural view of Embodiment 18 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffeners 5 are arranged inside the cavity formwork member, and a plurality of positioning members 20 are arranged on the cavity formwork member. The positioning members 20 in the figure are supporting positioning blocks.

The present invention is also characterized in that the cavity formwork components are provided with connecting pieces 21 for connecting the cavity formwork components with each other. Fig. 19 is a schematic structural view of Embodiment 19 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffeners 5 are arranged inside the cavity formwork member, and a plurality of connectors 21 for connecting the cavity formwork members to each other are arranged on the cavity formwork member. The connectors 21 shown in the figure are socket type square tube.

The present invention is also characterized in that at least two or more cavity formwork components are connected as a whole through the pick plate 4, and an inner rib cavity 22 is formed between the cavity formwork components. Fig. 20 is a schematic structural view of Embodiment 20 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are arranged inside the cavity formwork components, and multiple cavity formwork components are connected as a whole through pick plates 4 , and multiple inner rib cavity 22 are formed between the cavity formwork components.

The present invention is also characterized in that the inner rib mold cavity 22 is provided with a fixed or movable brace 23 . Fig. 21 is a schematic structural view of Embodiment 21 of the present invention. The upper plate 1, the surrounding side walls 2 and the lower bottom 3 enclose a polyhedral cavity formwork member, and the lower bottom 3 protrudes from the surrounding side walls 2 to form a pick plate 4. Stiffening ribs 5 are arranged inside the cavity formwork components, and multiple cavity formwork components are connected as a whole through the pick plate 4, and a plurality of inner rib cavity 22 is formed between the cavity formwork components, and the inner rib cavity 22 A plurality of fixed braces 23 are arranged inside, and the braces 23 shown in the figure are braced rods.

During the implementation of the present invention, cement binder and glass fiber mesh cloth or steel wire mesh can be used to form a multilayer structure of one layer of cement binder, one layer of glass fiber mesh cloth and one layer of binder in the mould. The cavity formwork member with the opening of the stiffener plate 5 is demoulded and cured to the specified age, and the open cavity formwork member is obtained. Then, the lower bottom 3 is made in the lower bottom mold, and the slurry of the lower bottom 3 is Cement mortar or cement concrete can be used, and reinforcements 9 such as steel bars or steel wire mesh can also be placed in the lower bottom 3. Before the slurry of the lower bottom 3 is solidified and hardened, the opening edge of the pre-made open cavity formwork member and the lower bottom 3 bonded into a whole, after the lower bottom 3 is solidified and hardened, demoulded, and cured to a specified age, the cavity formwork member for cast-in-place concrete with stiffening ribs 5 is obtained.

Claims (22)

1, a kind of cast-in-place concrete hollow-cavity mould component, comprise upper plate (1), sidewall (2), go to the bottom (3) on every side, upper plate (1), sidewall (2), go to the bottom (3) surround the polyhedron cavity former component on every side, (3) sidewall (2) around at least one of going to the bottom stretches out and constitutes bridging piece (4), it is characterized in that being provided with in cavity former component a slice stiffening rib plate (5) at least.

2, a kind of cast-in-place concrete hollow-cavity mould component according to claim 1 is characterized in that superimposed go to the bottom of described going to the bottom (3) for being made of jointly template (6) and go to the bottom (3).

3, a kind of cast-in-place concrete hollow-cavity mould component according to claim 1 is characterized in that described upper plate (1) or sidewall (2) or bridging piece (4) are provided with the carrying part (7) of convenient carrying on every side.

4, a kind of cast-in-place concrete hollow-cavity mould component according to claim 1, it is characterized in that described going to the bottom (3) stretch out bridging piece (4) from the adjacent both sides of sidewall (2) on every side and constitute L shaped bridging piece, perhaps go to the bottom (3) all stretch out the annular bridging piece in bridging piece (4) formation side around sidewall (2) on every side.

5, a kind of cast-in-place concrete hollow-cavity mould component according to claim 1 is characterized in that at least one side of described upper plate (1) is extended with bridging piece (4).

6, a kind of cast-in-place concrete hollow-cavity mould component according to claim 1 is characterized in that the described floor of putting more energy into (5) is compound floor or the hollow reinforced floor of putting more energy into.

7, a kind of cast-in-place concrete hollow-cavity mould component according to claim 6 is characterized in that the described floor of putting more energy into (5) is for accompanying the compound floor of putting more energy into of light material (8).

8, a kind of cast-in-place concrete hollow-cavity mould component according to claim 1 is characterized in that the described multi-disc floor (5) of putting more energy into is parallel, quadrature or oblique setting.

9, a kind of cast-in-place concrete hollow-cavity mould component according to claim 1 is characterized in that the described floor of putting more energy into (5) exposes outside the cavity former component.

10, a kind of cast-in-place concrete hollow-cavity mould component according to claim 1, it is characterized in that described upper plate (1), contain reinforce (9) at least one of sidewall (2), go to the bottom (3), bridging piece (4), the floor of putting more energy into (5) on every side, perhaps have reinforce (9) to expose.

11, a kind of cast-in-place concrete hollow-cavity mould component according to claim 10, it is characterized in that having in the described sidewall (2) reinforce (9) to stretch into and be anchored at going to the bottom (3) or bridging piece (4) in, have reinforce (9) to stretch into and be anchored in the sidewall (2) in perhaps go to the bottom (3) or the bridging piece (4).

12,, it is characterized in that the horizontal profile of described polyhedron cavity former component is shaped as rectangle, square, polygon, arc angle polygon, chamfering polygon, multi sphere limit shape, corrugated or circular according to the described a kind of cast-in-place concrete hollow-cavity mould component of arbitrary claim in the claim 1 to 11.

13,, it is characterized in that described cavity former component is provided with at least one in inner corner trim (10), chamfering (11), groove (12), pit (13), hole (14), boss module (15), raised line (16), the external corner (17) according to the described a kind of cast-in-place concrete hollow-cavity mould component of arbitrary claim in the claim 1 to 11.

14, a kind of cast-in-place concrete hollow-cavity mould component according to claim 13 is characterized in that described inner corner trim (10), chamfering (11), groove (12), raised line (16) self or is parallel, quadrature, oblique or grade separation setting mutually.

15, according to the described a kind of cast-in-place concrete hollow-cavity mould component of arbitrary claim in the claim 1 to 11, it is characterized in that being provided with in the enclosed cavity of described cavity former component at least one in bracing boom (18), the reinforcing rib (19), perhaps have bracing boom (18) to expose outside the cavity former component, perhaps also exposing on the bracing boom (18) has reinforce (9).

16,, it is characterized in that being provided with light material (8) in the enclosed cavity of described cavity former component according to the described a kind of cast-in-place concrete hollow-cavity mould component of arbitrary claim in the claim 1 to 11.

17,, it is characterized in that in described upper plate (1) or the sidewall (2) at least one is for dismountable movable part according to the described a kind of cast-in-place concrete hollow-cavity mould component of arbitrary claim in the claim 1 to 11.

18,, it is characterized in that described upper plate (1), at least one in the external surface of sidewall (2), bridging piece (4) is corrugated, zigzag, plucking shape or exasperate external surface on every side according to the described a kind of cast-in-place concrete hollow-cavity mould component of arbitrary claim in the claim 1 to 11.

19,, it is characterized in that described cavity former component is provided with align member (20) according to the described a kind of cast-in-place concrete hollow-cavity mould component of arbitrary claim in the claim 1 to 11.

20,, it is characterized in that described cavity former component is provided with connector connected to one another (21) between the cavity former component according to the described a kind of cast-in-place concrete hollow-cavity mould component of arbitrary claim in the claim 1 to 11.

21, according to the described a kind of cast-in-place concrete hollow-cavity mould component of arbitrary claim in the claim 1 to 11, it is characterized in that at least two above cavity former components are connected as one by bridging piece (4), constitute internal-rib die cavity (22) between the cavity former component.

22, a kind of cast-in-place concrete hollow-cavity mould component according to claim 21 is characterized in that being provided with in the described internal-rib die cavity (22) fixed or movable support draw piece (23).

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