CN1776155B - A cavity component for a hollow plate - Google Patents

Abstract

A cavity component for a hollow plate, comprising a cavity formwork (1) and a structural bottom plate (2), the cavity formwork (1) and the structural bottom plate (2) are connected as a whole, and the structural bottom plate (2) has at least More than two cavity formworks (1) are arranged alternately, and the interphase cavities between the cavity formworks (1) and the structural bottom plate (2) constitute the inner rib cavity (3) of the cast-in-place structure, which is characterized in that At least one brace (4) is arranged in the inner rib mold cavity (3) to connect the adjacent cavity mold shells (1) to each other, the cavity mold shells (1) are arranged longitudinally on the same axis, and there is at least one non Prestressed or prestressed steel bars, steel wires or steel strands (5) pass through at least two braces (4) and at least three cavity formworks (1), and are connected to each other as a whole. In this way, the strength and rigidity of the cavity member for the concrete hollow slab are greater, and the impact resistance is better, and it is suitable for the hollow slab, hollow floor, roof, foundation floor, wall and body of cast-in-place reinforced concrete or prestressed reinforced concrete Fasting bridges are used.

Description

A cavity component for a hollow plate

(1) Technical field

The present invention relates to a cavity member for a hollow plate.

(2) Background technology

At present, most of the buildings with brick-concrete structure and reinforced concrete structure use prefabricated hollow slabs as floor slabs. This floor slab has the advantages of fast construction speed and low cost. However, because there is no firm connection between two adjacent prefabricated hollow slabs, only cement mortar is used to fill the joints, so the integrity is poor, which is not conducive to earthquake resistance, and cracks and water seepage often occur in the gaps. In order to solve the above problems, many buildings adopt the method of cast-in-place concrete floor slabs (solid and hollow). Although the problems of earthquake resistance and cracking have been solved, a large number of templates are used during construction, which not only increases the cost, but also slows down the construction speed and prolongs the construction period. deadline. Application No. 00203695.9 is a utility model patent for "a combined concrete rib floor slab". It is composed of prefabricated thin plates, formwork shells, hidden ribs, and upper plates. The prefabricated thin plates are placed at intervals, and the formwork is fixed on the prefabricated thin plates. , There are hidden ribs between adjacent prefabricated thin plates or formwork shells, and the upper plate covers the formwork shells and is connected with the hidden ribs as a whole. Although this kind of floor slab can save a lot of formwork and speed up the construction process, because the formwork is separated from the prefabricated thin plate, its strength and rigidity are relatively poor, so there is a problem that the formwork is easy to break. At the same time, the formwork is fixed on the prefabricated sheet. There is no specific fixing method involved on the thin plate, so it is difficult to fix on site. The patent No. 93206310.1 is a utility model patent for formwork components. It consists of a side wall and a formwork upper plate to form a cavity formwork and then connects with the lower base plate to form a fully enclosed cavity polyhedron structure. There are prefabricated reinforcing ribs in it. The components are placed on the supports between the floors, and the cast-in-place main ribs and formwork components are bonded to each other to form a whole. When this kind of component is used, it is purely a prefabricated filling component, and the reinforcing ribs in the formwork are only used to support the formwork, and cannot participate in the overall stress of the floor. And when it is applied to a large space structure floor, its mechanical performance will be correspondingly worse, and there is no secondary rib connection between the cast-in-place main ribs, so the size of the main ribs needs to be increased accordingly, or the number of main ribs increases , resulting in an increase in material consumption and cost. For this reason, the applicant applied for a publication number of CN1349028A on November 15, 2001, and the name is called "A Composite Rib Cavity Member for a Space Structure Floor". The cavity member disclosed by it includes formwork and structure The bottom plate, the cavity formwork and the structural bottom plate are connected as a whole. It is characterized in that there are at least two cavity formworks arranged alternately on the structural bottom plate, and its side and the structural bottom plate form at least one cast-in-place structural secondary rib cavity. The cavity formwork The other outer side of the cast-in-place structure constitutes the main rib or beam or side formwork of the wall. In this way, on the basis of the existing technology, there are at least 2 cavity formworks and at least 1 cast-in-place structural secondary rib cavity (inner rib cavity) on the structural base plate, and a cast-in-place structure can be formed on the structural base plate The secondary ribs jointly participate in the stress of the structural bottom, main ribs, and upper slabs, forming a two-way main rib and secondary rib stress structure, which not only solves the problems existing in the prior art, but also further improves the overall performance of the floor, earthquake resistance performance, the thickness of the floor is reduced, the structure's self-weight is reduced, and the cost is reduced. However, in the process of handling and construction of this cavity member, the structural base plate is prone to breakage, so the breakage rate of the cavity member is large, the handling and construction are inconvenient, and the construction cost is increased. Therefore, it is urgent to develop a novel cavity member for hollow slabs.

(3) Contents of the invention

The object of the present invention is to provide a cavity member for hollow slabs, which has the characteristics of high strength, not easy to break, easy to carry and construct.

The solution of the present invention is based on the prior art, including a cavity formwork and a structural bottom plate, the cavity formwork and the structural bottom plate are connected as a whole, and at least two or more cavity formworks are arranged alternately on the structural bottom plate, The interphase cavities between the cavity formworks and the structural bottom plate constitute the inner rib cavity of the cast-in-place structure, which is characterized in that at least one brace is arranged in the inner rib cavity to connect the adjacent cavity formworks to each other , the cavity formwork is arranged longitudinally on the coaxial line, and at least one non-prestressed or prestressed steel bar, steel wire or steel strand passes through at least two braces and at least three cavity forms, and is connected to each other as a whole . In this way, since at least one brace member is arranged in the cavity of the inner rib to connect the adjacent cavity formworks to each other, at least one non-prestressed or prestressed steel bar, steel wire or steel strand passes through at least two braces. The drawing parts and at least three cavity formworks are connected to each other as a whole, so the strength and rigidity of the cavity components for the concrete hollow slab are greater, the impact resistance is better, the structural bottom plate is less likely to break, and the handling and construction are more convenient. Moreover, the cavity formwork is arranged longitudinally on the same axis, so the construction and layout of the cavity components is more convenient, and the construction cost can be further reduced, thereby achieving the purpose of the present invention; meanwhile, the cavity components also have the advantages of simple structure, convenient manufacture, and low cost. It is suitable for hollow slabs, hollow floors, roofs, foundation slabs, walls and hollow bridges of cast-in-place reinforced concrete or prestressed reinforced concrete, especially for hollow beamless floors.

The present invention is also characterized in that at least one side of said structural floor protrudes with a raised edge. In this way, at least one side of the structural bottom plate protrudes with a protruding edge, and the protruding edge can replace the template, reduce the loss of the template, reduce the cost of materials, and simultaneously save the template installation process, speed up the construction speed, and improve the construction efficiency.

The present invention is also characterized in that the width of the flange is 10-110mm. Like this, according to the needs of different actual situations, the width of the pick side can be adjusted to meet its use needs.

The present invention is also characterized in that there is at least one non-prestressed or prestressed steel bar, steel wire or steel strand in the cavity formwork or the structural bottom. In this way, after there is at least one non-prestressed or prestressed steel bar, steel wire or steel strand in the cavity formwork or the structural bottom plate, the strength and rigidity of the cavity formwork or the structural bottom plate can be greatly improved, or it can become a Prestressed components, thus improving its stress structure, making its stress structure more excellent and reasonable.

The present invention is also characterized in that there are reinforcing ribs on the walls of the cavity formwork or on the structural bottom, or at least one of supporting rods or stiffening ribs is provided in the cavity of the cavity formwork. In this way, there are reinforcing ribs on the wall of the cavity formwork or on the structural bottom plate or there are supporting rods or stiffening ribs in the cavity of the cavity formwork, which can greatly enhance the bearing capacity of the cavity components and reduce the load capacity of the cavity components. The loss rate in the process of transportation, installation and construction saves materials and reduces the cost of hollow slabs.

The present invention is also characterized in that reinforcement bars or reinforcement meshes are arranged inside the reinforcing ribs or/and supporting rods or/and stiffening ribs. In this way, reinforcing ribs or/and supporting rods or/and stiffening ribs are provided with steel bars or steel mesh, which greatly enhances the rigidity and strength of reinforcing ribs, supporting rods, and stiffening ribs.

The present invention is also characterized in that the steel bar or steel mesh is exposed outside the cavity formwork. In this way, the steel bar or steel mesh is exposed outside the cavity formwork, which can facilitate the binding, installation and anti-floating of the hollow slab during the construction process. good.

The present invention is also characterized in that there are grooves on the cavity formwork. In this way, cast-in-place reinforced concrete forms cast-in-place concrete bars, blocks, strips, rods or piers, constituting a cast-in-place concrete reinforced structure with internal local reinforcement in the cast-in-place hollow slab, thereby making the structure more reasonable.

The present invention is also characterized in that there is at least one of post-laminated steel bars, steel wires or steel strands in the groove. In this way, when the cavity member for the hollow slab is applied to the cast-in-place concrete hollow slab, the cast-in-place concrete is poured into the groove, and combined with the post-laminated steel bars, steel wires or steel strands to form a cast-in-place reinforced concrete It can greatly improve the structural strength and rigidity of the floor slab.

The present invention is also characterized in that the cavity formwork is an integral open cavity formwork. In this way, when the cavity formwork is an integrally open cavity formwork, the overall performance of the cavity formwork is good and it is not easy to be damaged. When the cavity member for the hollow slab is applied to the cast-in-place concrete hollow slab, the cavity formwork can The unstressed concrete in the board is hollowed out to reduce the self-weight of the board, which is beneficial to reduce the cost of the board.

The present invention is also characterized in that the cavity formwork is composed of at least two assembled open or closed formwork pieces. In this way, when the cavity formwork is composed of at least two open or closed formwork parts, the production of the cavity formwork is convenient and the production speed is fast, which is beneficial to cost reduction and flexible application.

The present invention is also characterized in that part of the formwork part is a hard shell, and part of it is a soft shell, or it is filled with lightweight materials. In this way, part of the formwork part is a hard shell, and part of it is a soft shell, or it is filled with light materials. When the cavity member for the hollow slab is applied to the cast-in-place concrete hollow slab, it can For example, pre-embedded pipelines, etc., slots or holes can be made on the soft shell to facilitate the pre-embedded pipelines, which greatly facilitates construction and application.

The present invention is also characterized in that said cavity formwork is a closed cavity formwork. In this way, when the cavity formwork is a closed cavity formwork, when the hollow member for the hollow slab is applied to the cast-in-place concrete hollow slab, the concrete will not enter the cavity formwork, effectively playing the role of concrete excavation. The hollow effect reduces the self-weight of the floor and increases the hollow rate of the floor.

The present invention is also characterized in that said brace is a truss brace. In this way, the truss braces and braces have the characteristics of high rigidity and high strength, which makes the connection of components more firm and reliable, and can be used as a reinforced skeleton of cast-in-place reinforced concrete concealed ribs in hollow slabs.

The present invention is also characterized in that the brace is a tubular composite rod. In this way, when the support member is a tubular composite member, the support member has the characteristics of high rigidity and high strength, which makes the connection of components more firm and reliable, and can be used as a reinforced skeleton of the cast-in-place reinforced concrete concealed rib in the hollow slab.

The present invention is also characterized in that said brace is a layered composite rod. In this way, when the struts are layered composite rods, the struts have the characteristics of high rigidity and high strength, which makes the connection of components more firm and reliable, and can be used as a reinforced skeleton of cast-in-place reinforced concrete hidden ribs in hollow slabs .

The present invention is also characterized in that the cavity formwork or the structural bottom plate contains reinforcements, and the cavity formwork has reinforcements anchored in the structural bottom plate, or there are reinforcements anchored in the cavity formwork in the structural bottom plate . In this way, the strength of the structural floor and cavity formwork provided with reinforcements is greatly improved.

The present invention is also characterized in that the side walls of the cavity formwork are superimposed with longitudinal ribs, and the longitudinal ribs are integrally connected with the structural bottom plate. In this way, the side walls of the cavity formwork are superimposed with longitudinal ribs, and the longitudinal ribs are connected to the bottom plate as a whole, which greatly improves the overall performance of the cavity components for hollow slabs.

The present invention is also characterized in that the cavity formwork and longitudinal ribs are superimposed on prefabricated formwork and cast-in-place longitudinal ribs. In this way, the structural form combining cast-in-place and prefabrication reduces the difficulty of production. At the same time, the combination of the two is firm, the cavity formwork is not easy to loosen and fall, and the quality of the cavity components for hollow slabs is improved.

The present invention is also characterized in that the cavity formwork and the longitudinal ribs are superimposed on the prefabricated formwork and the prefabricated longitudinal ribs. In this way, when the cavity formwork and the longitudinal ribs are prefabricated components, they can be mass-produced separately by mechanization, which reduces the production difficulty, improves the production efficiency and reduces the cost of the product.

The present invention is also characterized in that the cavity formwork and the longitudinal ribs are superimposed on the cast-in-place formwork and the prefabricated longitudinal ribs. In this way, the structural form combining cast-in-place and prefabrication reduces the difficulty of production. At the same time, the combination of the two is firm, and the cavity formwork and longitudinal ribs are not easy to loosen and fall, which improves the quality of the cavity components for hollow slabs.

The present invention is also characterized in that the structural base plate and longitudinal ribs are structural base plates and longitudinal ribs of cement mortar or concrete or reinforced concrete or reinforced mesh concrete. In this way, the diversity of materials for the structural bottom plate and the longitudinal ribs can facilitate their production and obtain nearby materials, reducing the cost of the cavity components for the hollow plate.

The invention is also characterized in that said cavity formwork protrudes with reinforcements anchored in the laminated longitudinal ribs. In this way, through the connection of the reinforcement, it will not be cracked and damaged during the application process, which greatly improves the quality of the cavity component for the hollow plate.

The present invention is also characterized in that a finite-distance pier is arranged on the longitudinal rib. In this way, through the space-limiting piers set on the longitudinal ribs, the cavity components for hollow slabs can be accurately space-limited and positioned, so that the distance between the two can be guaranteed during the application process, thereby ensuring the width of the cast-in-place concrete or The thickness makes it easy for construction personnel to carry out quality control on the floor slab.

The present invention is also characterized in that holes or grooves are provided on the longitudinal ribs at positions corresponding to the mold cavity of the inner ribs. In this way, when the hollow slab filling member is applied to the cast-in-place concrete hollow slab, the cast-in-place concrete is poured into the above-mentioned holes or grooves, correspondingly forming through or partially reinforced cast-in-place concrete members, which can greatly improve the overall performance of the floor slab and structural bearing capacity.

The present invention is also characterized in that the side shell of the cavity mold shell has columnar superimposed reinforcing ribs intersecting with the structural bottom plate. In this way, when the side of the cavity formwork has columnar superimposed reinforcing ribs intersecting the bottom plate, the columnar superimposed reinforcing ribs will connect the structural bottom plate and the cavity formwork to form an integral stressed member, which improves the overall strength of the cavity components for hollow slabs. resistance to compression, tension and shear.

The present invention is also characterized in that at least one of bumps, reinforcement pads, pits or holes is provided on the cavity formwork. In this way, when the cavity member for the hollow slab is applied to the cast-in-place concrete slab, the cast-in-place concrete is poured into the above-mentioned structure, and the bumps and steel bar pads can accurately position the steel bars to ensure the pouring quality of the floor slab. The concrete is poured into the pit or hole to form a cast-in-place concrete load-bearing structural component, which can effectively improve the structural performance of the floor slab.

The present invention is also characterized in that at least one side wall of the cavity formwork is integrally formed with the structural bottom plate. In this way, at least one side wall of the cavity formwork is integrally formed with the structural bottom plate, which greatly improves the integrity of the cavity component for the hollow plate.

The present invention is also characterized in that the cavity formwork is a prefabricated part, which is integrally bonded with the structural bottom plate. In this way, the structural form combining cast-in-place and prefabrication reduces the difficulty of production. At the same time, the combination of the two is firm, the cavity formwork is not easy to loosen and fall, and the quality of the cavity components for hollow slabs is improved.

The present invention is also characterized in that the top plate of the cavity formwork is a laminated plate. In this way, the top plate of the cavity formwork is a laminated plate, and the construction is more convenient.

The present invention is also characterized in that at least one of internal corners, chamfers or arc corners is provided on the cavity formwork. In this way, when the cavity member for the hollow slab is applied to the cast-in-place concrete hollow slab, the cast-in-place concrete is poured into the above-mentioned internal corners, chamfers or arc corners, correspondingly forming through-through or partially reinforced cast-in-place concrete members, greatly The overall performance and structural bearing capacity of the cavity formwork are improved.

The present invention is also characterized in that there are glued joints at the spliced parts of the cavity formwork. In this way, when there is a cemented joint at the spliced part of the cavity formwork, the joint can be strengthened; at the same time, when the cavity member for the hollow slab is applied to the cast-in-place concrete hollow slab, the joint can be used to lift the weak joint. The role of the parts reduces the chance of component damage.

The present invention is also characterized in that the wall of the cavity formwork is steel wire mesh or fiber mesh or fiber mortar wall. In this way, the diversification of the material of the wall of the cavity formwork can meet the needs of different situations.

The present invention is also characterized in that the wall of the cavity formwork is concrete or steel mesh concrete or fiber mesh concrete or fiber concrete wall. In this way, the diversification of the material of the wall of the cavity formwork can meet the needs of different situations.

The present invention is also characterized in that the walls of the cavity formwork are plastic or metal plate walls. In this way, the diversification of the material of the wall of the cavity formwork can meet the needs of different situations.

The present invention is also characterized in that the side shells of the cavity formwork are provided with finite-distance piers. In this way, by setting a limited-distance pier on the side of the cavity formwork, the cavity member for the hollow slab can be accurately positioned with a limited distance, so that the distance between the two can be guaranteed during the application process, thereby ensuring the stability of the cast-in-place concrete. The width or thickness of the floor slab makes it easy for construction personnel to control the quality of the floor slab.

The present invention is also characterized in that the width of the structural bottom plate is 400-1300mm. In this way, according to different actual needs, any width between 400-1300mm can be produced for the structural bottom plate to meet the needs, which greatly facilitates the practical application.

The present invention is also characterized in that the inner rib cavity is an inverted T-shaped inner rib cavity. In this way, since the inner rib mold cavity is an inverted T shape, the cast-in-place concrete forms an inverted T-shaped cast-in-place concrete rib in the inner rib mold cavity, so the strength and rigidity of the floor are greater.

The present invention is also characterized in that the cavity width of the inner rib is 20-120mm. Like this, according to actual different needs, can produce any width between 20-120mm of inner rib mold cavity width to meet the needs, greatly facilitate the practical application.

The present invention is also characterized in that said braces are located on the same straight line. In this way, when the braces are located on the same straight line, the braces can pass through and receive force, so that the hollow member for the hollow plate is not easily damaged, and the loss rate of the product can be effectively reduced.

The present invention is also characterized in that the said brace is located at the upper corner of the cavity formwork. In this way, when the tension member is located at the upper corner of the cavity formwork, the point supported by the support member is the part with high strength and good force transmission performance on the cavity formwork. Therefore, during the transportation and construction process, the cavity The corners of the upper part of the formwork are not easy to be damaged, which reduces the loss rate of components.

The present invention is also characterized in that the structural bottom plate is reinforced with section steel. In this way, when the structural bottom plate is reinforced with section steel, the strength of the structural bottom plate is greatly enhanced, so that the structural bottom plate can bear a greater load and fully meet the needs.

The present invention is also characterized in that the structural bottom plate at the position where the inner rib mold cavity is located is reinforced with section steel. In this way, when the structural bottom plate at the position of the inner rib cavity is reinforced with section steel, the strength of the structural bottom plate at the position of the inner rib cavity is greatly strengthened, so that the structural bottom plate can bear a greater load and fully meet the needs.

The present invention is also characterized in that the section steel is flat iron, angle steel or I-shaped steel. In this way, the diversification of section steel can meet the needs of different actual situations.

(4) Description of drawings

Fig. 1 is a schematic structural diagram of Embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of Embodiment 2 of the present invention.

Fig. 3 is a schematic structural diagram of Embodiment 3 of the present invention.

Fig. 4 is a schematic structural diagram of Embodiment 4 of the present invention.

Fig. 5 is a schematic structural diagram of Embodiment 5 of the present invention.

Fig. 6 is a schematic structural diagram of Embodiment 6 of the present invention.

Fig. 7 is a schematic structural diagram of Embodiment 7 of the present invention.

Fig. 8 is a schematic structural diagram of Embodiment 8 of the present invention.

Fig. 9 is a schematic structural diagram of Embodiment 9 of the present invention.

Fig. 10 is a schematic structural diagram of Embodiment 10 of the present invention.

Fig. 11 is a schematic structural diagram of Embodiment 11 of the present invention.

Fig. 12 is a schematic structural diagram of Embodiment 12 of the present invention.

Fig. 13 is a schematic structural diagram of Embodiment 13 of the present invention.

Fig. 14 is a schematic structural diagram of Embodiment 14 of the present invention.

Fig. 15 is a schematic structural diagram of Embodiment 15 of the present invention.

Fig. 16 is a schematic structural diagram of Embodiment 16 of the present invention.

Fig. 17 is a schematic structural diagram of Embodiment 17 of the present invention.

(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 a cavity formwork 1 and a structural bottom plate 2. The cavity formwork 1 and the structural bottom plate 2 are connected as a whole, and at least two or more cavity formworks 1 are arranged alternately on the structural bottom plate 2. The interphase cavity between the cavity formwork 1 and the structural bottom plate 2 constitute the inner rib cavity 3 of the cast-in-place structure. The cavity formworks 1 are connected to each other, the cavity formworks 1 are arranged longitudinally on the coaxial line, and at least one non-prestressed or prestressed steel bar, steel wire or steel strand passes through at least two braces 4 and at least three voids. The cavity formwork 1 is connected to each other as a whole. In each accompanying drawing, 1 is a cavity formwork, 2 is a structural bottom plate, 3 is an inner rib cavity, 4 is a brace, and 5 is a steel bar, steel wire or steel strand. In the following drawings, the numbers are the same, Its instructions are the same. Fig. 1 is the structural representation of embodiment 1 of the present invention, as shown in Fig. 1, is provided with brace member 4 in its described inner rib mold cavity 3, connects adjacent cavity formwork 1 mutually, cavity formwork 1. Longitudinally arranged coaxially, non-prestressed steel bars 5 pass through the braces 4 and five cavity formworks 1, and are connected to each other as a whole.

The present invention is also characterized in that at least one side of the structural bottom plate 2 protrudes from a protruding edge 6 . FIG. 2 is a schematic structural view of Embodiment 2 of the present invention. As shown in FIG. 2 , the structural bottom plate 2 protrudes from the raised edge 6 .

The present invention is also characterized in that the width of the flange 6 is 10-110 mm. As shown in Figure 2, the width of its described pick-up 6 is 110mm.

The present invention is also characterized in that there is at least one non-prestressed or prestressed steel bar, steel wire or steel strand in the cavity formwork 1 or the structural bottom plate 2 . Fig. 3 is a schematic structural view of Embodiment 3 of the present invention. As shown in Fig. 3 , there are prestressed steel bars 5 inside the cavity formwork 1 or the structural bottom plate 2 .

The present invention is also characterized in that there are reinforcing ribs 7 on the wall of the cavity formwork 1 or on the structural bottom plate 2 or there is at least one of a support rod 8 or a stiffening rib 9 in the cavity of the cavity formwork 1 kind. Fig. 4 is the structural representation of embodiment 4 of the present invention, and as shown in Fig. 4, reinforcing rib 7 is arranged on the wall of its described cavity formwork 1, and there are support rods 8 and in the cavity of cavity formwork 1 Stiffeners 9.

The present invention is also characterized in that reinforcement bars 5 or reinforcement meshes 10 are arranged in the reinforcement ribs 7 or/and support rods 8 or/and stiffening ribs 9 . As shown in FIG. 4 , steel bars 5 and steel mesh 10 are respectively arranged in the supporting rods 8 and stiffening ribs 9 .

The present invention is also characterized in that the steel bars 5 or steel mesh 10 are exposed outside the cavity formwork 1 . As shown in FIG. 4 , the steel bars 5 described above are exposed outside the cavity formwork 1 .

The present invention is also characterized in that there is a groove 11 on the cavity formwork 1 . FIG. 5 is a schematic structural view of Embodiment 5 of the present invention. As shown in FIG. 5 , there are grooves 11 on the cavity formwork 1 .

The present invention is also characterized in that there is at least one of post-laminated steel bars, steel wires or steel strands in the groove 11 . As shown in FIG. 5 , there are post-stacked steel bars 5 in the groove 11 .

The present invention is also characterized in that the cavity formwork 1 is an integral open cavity formwork 1 . FIG. 6 is a schematic structural view of Embodiment 6 of the present invention. As shown in FIG. 6 , the cavity formwork 1 is an integral open cavity formwork 1 .

The present invention is also characterized in that the cavity formwork 1 is composed of at least two open or closed formwork pieces 12 assembled together. FIG. 7 is a schematic structural view of Embodiment 7 of the present invention. As shown in FIG. 7 , the cavity formwork 1 is composed of two closed formwork parts 12 assembled together.

The present invention is also characterized in that the molded shell 12 is partly a hard shell and partly a soft shell, or is filled with lightweight materials 13 . As shown in FIG. 7 , the said formwork part 12 is filled with lightweight material 13 .

The present invention is also characterized in that the cavity formwork 1 is a closed cavity formwork. As shown in FIG. 7 , the cavity formwork 1 is a closed cavity formwork.

The present invention is also characterized in that the brace 4 is a truss brace. Fig. 8 is a schematic structural view of Embodiment 8 of the present invention. As shown in Fig. 8, the brace 4 is a truss brace.

The present invention is also characterized in that the brace 4 is a tubular composite rod. Fig. 9 is a schematic structural view of Embodiment 9 of the present invention, as shown in Fig. 9, the brace 4 is a tubular composite rod.

The present invention is also characterized in that the brace 4 is a layered composite rod. Fig. 10 is a schematic structural view of Embodiment 10 of the present invention. As shown in Fig. 10, the brace 4 is a layered composite rod.

The present invention is also characterized in that the cavity formwork 1 or the structural bottom plate 2 contains reinforcements 14, and the cavity formwork 1 has reinforcements 14 anchored in the structural bottom plate 2, or there are reinforcements in the structural bottom plate 2 14 is anchored in the cavity formwork 1. Fig. 11 is a schematic structural view of Embodiment 11 of the present invention. As shown in Fig. 11, the cavity formwork 1 and the structural bottom plate 2 both contain reinforcements 14, and the cavity formwork 1 protrudes from the reinforcements 14. Anchored in the structural base plate 2.

The present invention is also characterized in that the side walls of the cavity formwork 1 are superimposed with longitudinal ribs 15 , and the longitudinal ribs 15 are integrally connected with the structural bottom plate 2 . As shown in FIG. 11 , longitudinal ribs 15 are superimposed on the side walls of the cavity formwork 1 , and the longitudinal ribs 15 are integrally connected with the structural bottom plate 2 .

The present invention is also characterized in that the cavity formwork 1 and the longitudinal ribs 15 are superimposed on the prefabricated formwork and cast-in-place longitudinal ribs. As shown in FIG. 11 , the cavity formwork 1 and the longitudinal ribs 15 described above are superimposed on the prefabricated formwork and the cast-in-place longitudinal ribs.

The present invention is also characterized in that the cavity formwork 1 and the longitudinal ribs 15 are superimposed on the prefabricated formwork and the prefabricated longitudinal ribs. Fig. 12 is a schematic structural view of Embodiment 12 of the present invention. As shown in Fig. 12, the cavity formwork 1 and the longitudinal ribs 15 are superimposed on the prefabricated formwork and the prefabricated longitudinal ribs.

The present invention is also characterized in that the cavity formwork 1 and the longitudinal ribs 15 are superimposed on the cast-in-place formwork and the prefabricated longitudinal ribs. Fig. 13 is a schematic structural view of Embodiment 13 of the present invention. As shown in Fig. 13, the cavity formwork 1 and the longitudinal ribs 15 are superimposed by the cast-in-place formwork and the prefabricated longitudinal ribs.

The present invention is also characterized in that the structural bottom plate 2 and the longitudinal ribs 15 are structural bottom plates and longitudinal ribs of cement mortar or concrete or reinforced concrete or reinforced mesh concrete. As shown in FIG. 13 , the structural bottom plate 2 and longitudinal ribs 15 are structural bottom plates and longitudinal ribs of reinforced concrete.

The present invention is also characterized in that said cavity formwork 1 protrudes with reinforcements 14 anchored in overlapping longitudinal ribs 15 . As shown in FIG. 11 , the cavity formwork 1 is extended with reinforcements 14 anchored in the laminated longitudinal ribs 15 .

The present invention is also characterized in that the longitudinal ribs 15 are provided with finite-distance piers 16 . As shown in FIG. 13 , the longitudinal ribs 15 are provided with finite-distance piers 16 .

The present invention is also characterized in that holes 17 or grooves 11 are provided on the longitudinal ribs 15 at positions corresponding to the inner rib cavity 3 . Fig. 14 is a schematic structural view of Embodiment 14 of the present invention. As shown in Fig. 13 and Fig. 14, holes 17 and grooves 11 are provided on the longitudinal ribs 15 corresponding to the inner rib cavity 3 respectively.

The present invention is also characterized in that the side shell of the cavity formwork 1 has columnar superimposed reinforcing ribs 7 intersecting with the structural bottom plate 2 . FIG. 15 is a schematic structural view of Embodiment 15 of the present invention. As shown in FIG. 15 , the side shell of the cavity formwork 1 has columnar superimposed reinforcing ribs 7 intersecting with the structural bottom plate 2 .

The present invention is also characterized in that at least one of the projections 18 , reinforcement strips 19 , pits 20 or holes 17 is provided on the cavity formwork 1 . As shown in FIG. 15 , the cavity formwork 1 is provided with bumps 18 , reinforcement strips 19 , and pits 20 .

The present invention is also characterized in that at least one side wall of the cavity formwork 1 and the structural bottom plate 2 are integrally formed. FIG. 16 is a schematic structural view of Embodiment 16 of the present invention. As shown in FIG. 16 , the side wall of the cavity formwork 1 and the structural bottom plate 2 are integrally formed.

The present invention is also characterized in that the cavity formwork 1 is a prefabricated part, which is glued together with the structural bottom plate 2 as a whole. As shown in FIG. 8 , the cavity formwork 1 described above is a prefabricated part, which is glued together with the structural bottom plate 2 as a whole.

The present invention is also characterized in that the top plate 21 of the cavity formwork 1 is a laminated plate. As shown in FIG. 15 , the top plate 21 of the cavity formwork 1 is a laminated plate.

The present invention is also characterized in that the cavity formwork 1 is provided with at least one of the internal corner 22 , the chamfer 23 or the arc corner 24 . As shown in FIG. 16 , the cavity formwork 1 is provided with internal corners 22 , chamfers 23 and arc corners 24 respectively.

The present invention is also characterized in that there is a cemented seam 25 at the spliced part of the cavity formwork 1 . FIG. 17 is a schematic structural view of Embodiment 17 of the present invention. As shown in FIG. 17 , there are glued seams 25 at the spliced parts of the cavity formwork 1 .

The present invention is also characterized in that the wall of the cavity formwork 1 is a steel wire mesh or a fiber mesh or a fiber mortar wall. As shown in Fig. 16, the wall of the cavity formwork 1 is a wire mesh mortar wall.

The present invention is also characterized in that the wall of the cavity formwork 1 is a wall of concrete or steel mesh concrete or fiber mesh concrete or fiber concrete. As shown in Figure 17, the wall of the cavity formwork 1 is a fiber concrete wall.

The present invention is also characterized in that the walls of the cavity formwork 1 are plastic or metal plate walls. As shown in FIG. 3 , the wall of the cavity formwork 1 is a metal plate wall.

The present invention is also characterized in that the side shells of the cavity formwork 1 are provided with finite-distance piers 16 . As shown in FIG. 17 , the side shell of the cavity formwork 1 is provided with finite-distance piers 16 .

The present invention is also characterized in that the width of the structural bottom plate 2 is 400-1300 mm. As shown in Fig. 17, the structural bottom plate 2 is 1300mm wide.

The present invention is also characterized in that the inner rib cavity 3 is an inverted T-shaped inner rib cavity. As shown in Figure 17, the inner rib cavity 3 is an inverted T-shaped inner rib cavity.

The present invention is also characterized in that the width of the inner rib mold cavity 3 is 20-120mm. As shown in Figure 17, the width of the inner rib mold cavity 3 is 120mm.

The present invention is also characterized in that the braces 4 are located on the same straight line. As shown in FIG. 17 , the braces 4 are located on the same straight line.

The present invention is also characterized in that the said brace 4 is located at the upper corner of the cavity formwork 1 . As shown in FIG. 17 , the brace 4 is located at the upper corner of the cavity formwork 1 .

The present invention is also characterized in that the structural bottom plate 2 is reinforced by section steel 26 . As shown in Fig. 17, there is section steel 26 to strengthen in its described structural bottom plate 2.

The present invention is also characterized in that the structural bottom plate 2 at the position where the inner rib cavity 3 is located is reinforced by section steel 26 . As shown in FIG. 17 , there is section steel 26 in the structural bottom plate 2 at the position where the inner rib cavity 3 is located.

The present invention is also characterized in that the section steel 26 is flat iron, angle steel or I-shaped steel. As shown in Figure 17, its described section steel 26 is flat iron.

During the implementation of the present invention, the cavity formwork 1 can be made with cement mortar and glass fiber mesh cloth, and the cement mortar braces 4 are arranged between the cavity formworks 1. At the same time, the braces 4 are passed through the reinforcement bars 5 and the cavity formwork 1, so that the cavity formwork 1 becomes a series of cavity formwork members; then use cement mortar or concrete and steel wire mesh to make the structural bottom plate 2, and when it is not solidified and hardened, the prefabricated strings Cavity formwork 1 is fastened on it, bonded into a whole, after it is solidified and hardened, it is cured to the specified age, and then the hollow member for the hollow plate is obtained.

Claims (44)

1. A cavity component for a hollow plate, comprising a cavity formwork (1) and a structural base plate (2), the cavity formwork (1) is connected to the structural base plate (2) as a whole, and the structural base plate (2) is There are at least two cavity formworks (1) arranged alternately, and the interphase cavities between the cavity formworks (1) and the structural bottom plate (2) form a cast-in-place structural rib cavity (3), which is characterized in that The inner rib mold cavity (3) is provided with at least one brace (4) to connect the adjacent cavity mold shells (1) to each other, and the cavity mold shells (1) are longitudinally arranged coaxially, and there is at least one A non-prestressed or prestressed steel bar, steel wire or steel strand passes through at least two braces (4) and at least three cavity formworks (1), and is connected to each other as a whole. 2. The cavity member for hollow slabs according to claim 1, characterized in that at least one side of the structural bottom plate (2) protrudes from a raised edge (6). 3. The cavity member for hollow slabs according to claim 2, characterized in that the width of the flange (6) is 10-110mm. 4. The cavity member for hollow slab according to claim 1, characterized in that there is at least one non-prestressed or prestressed steel bar or steel wire in the cavity formwork (1) or the structural bottom plate (2) Or strand. 5. The cavity member for hollow slab according to claim 1, characterized in that there are reinforcing ribs (7) or cavity formwork on the wall of the cavity formwork (1) or on the structural bottom plate (2). (1) There is at least one of a support rod (8) or a stiffener (9) in the cavity. 6. The cavity member for hollow slabs according to claim 5, characterized in that said reinforcing ribs (7) or/and supporting rods (8) or/and stiffening ribs (9) are provided with reinforcing bars ( 5) or steel mesh (10). 7. The cavity member for hollow slabs according to claim 6, characterized in that the steel bars (5) or reinforcement meshes (10) are exposed outside the cavity formwork (1). 8. The cavity member for hollow slabs according to claim 1, characterized in that there are grooves (11) on the cavity formwork (1). 9. The cavity member for hollow slabs according to claim 8, characterized in that there is at least one of post-laminated steel bars, steel wires or steel strands in the groove (11). 10. The cavity member for hollow slabs according to claim 1, characterized in that the cavity formwork (1) is an integral open cavity formwork (1). 11. The cavity member for hollow slabs according to claim 1, characterized in that the cavity formwork (1) is composed of at least two open or closed formwork pieces (12) assembled together. The cavity formwork (1) is composed of at least two open or closed formwork pieces (12) assembled together. 12. The hollow member for hollow slab according to claim 11, characterized in that the said formwork part (12) is partly a hard shell, partly a soft shell, or filled with lightweight materials (13 ). 13. The cavity member for hollow slabs according to claim 1, characterized in that the cavity formwork (1) is a closed cavity formwork. 14. The cavity member for hollow slabs according to claim 1, characterized in that said brace (4) is a truss brace. 15. The cavity member for hollow slabs according to claim 1, characterized in that the said brace (4) is a tubular composite rod. 16. The cavity member for hollow slabs according to claim 1, characterized in that the said brace (4) is a layered composite rod. 17. The cavity member for hollow slabs according to claim 1, characterized in that the cavity formwork (1) or the structural bottom plate (2) contains reinforcements (14), and the cavity formwork (1) Reinforcements (14) protrude and are anchored in the structural bottom plate (2), or reinforcements (14) in the structural bottom plate (2) are anchored in the cavity formwork (1). 18. The cavity member for hollow slab according to claim 17, characterized in that the side wall of the cavity formwork (1) is superimposed with longitudinal ribs (15), and the longitudinal ribs (15) and the structural bottom plate ( 2) link into a whole. 19. The cavity member for hollow slabs according to claim 18, characterized in that the cavity formwork (1) and longitudinal ribs (15) are superimposed on prefabricated formwork and cast-in-place longitudinal ribs. 20. The cavity member for hollow slabs according to claim 18, characterized in that the cavity formwork (1) and longitudinal ribs (15) are prefabricated formwork and prefabricated longitudinal ribs superimposed. 21. The cavity component for hollow slabs according to claim 18, characterized in that the cavity formwork (1) and the longitudinal ribs (15) are superimposed on the cast-in-place formwork and the prefabricated longitudinal ribs. 22. The cavity member for hollow slabs according to claim 18, characterized in that the structural bottom plate (2) and longitudinal ribs (15) are structural bottom plates and longitudinal ribs of cement mortar or concrete or reinforced concrete or reinforced mesh concrete. rib. 23. The cavity member for hollow slabs according to claim 18, characterized in that reinforcements (14) protruding from the cavity formwork (1) are anchored in the superimposed longitudinal ribs (15). 24. The cavity member for hollow slabs according to claim 18, characterized in that the longitudinal ribs (15) are provided with finite-distance piers (16). 25. The cavity member for hollow slabs according to claim 18, characterized in that holes (17) or grooves ( 11). 26. The cavity member for hollow slabs according to claim 17, characterized in that the side shells of the cavity formwork (1) have columnar superimposed reinforcing ribs (7) intersecting the structural bottom plate (2). 27. The cavity member for hollow slabs according to claim 1, characterized in that the cavity formwork (1) is provided with bumps (18), reinforcement strips (19), pits (20) Or at least one of the holes (17). 28. The cavity member for hollow slabs according to claim 1, characterized in that at least one side wall of the cavity formwork (1) is integrally formed with the structural bottom plate (2). 29. The cavity member for hollow slabs according to claim 1, characterized in that the cavity formwork (1) is a prefabricated part, which is integrally bonded with the structural bottom plate (2). 30. The cavity member for hollow slabs according to claim 1, characterized in that the top plate (21) of the cavity formwork (1) is a laminated plate. 31. The cavity member for hollow slabs according to claim 1, characterized in that the cavity formwork (1) is provided with inner corners (22), chamfers (23) or arc corners (24) at least one of the . 32. The cavity member for hollow slabs according to claim 1, characterized in that there are glued joints (25) at the spliced parts of the cavity formwork (1). 33. The cavity member for hollow slabs according to claim 1, characterized in that the walls of the cavity formwork (1) are steel wire mesh or fiber mesh or fiber mortar walls. 34. The cavity component for hollow slabs according to claim 1, characterized in that the walls of the cavity formwork (1) are walls of concrete or steel wire mesh concrete or fiber mesh concrete or fiber concrete. 35. The cavity component for hollow slabs according to claim 1, characterized in that the walls of the cavity formwork (1) are plastic or metal plate walls. 36. The cavity member for hollow slabs according to claim 1, characterized in that the side shells of the cavity formwork (1) are provided with finite-distance piers (16). 37. The cavity member for hollow slabs according to claim 1, characterized in that the width of the structural bottom plate (2) is 400-1300 mm. 38. The cavity member for hollow slabs according to claim 1, characterized in that the inner rib cavity (3) is an inverted T-shaped inner rib cavity. 39. The cavity member for hollow slabs according to claim 1, characterized in that the width of the inner rib cavity (3) is 20-120mm. 40. The cavity member for hollow slabs according to claim 1, characterized in that said braces (4) are located on the same straight line. 41. The cavity member for hollow slabs according to claim 40, characterized in that the said braces (4) are located at the upper corners of the cavity formwork (1). 42. The cavity member for hollow slabs according to claim 1, characterized in that the structural bottom plate (2) is reinforced by shaped steel (26). 43. The cavity member for hollow slabs according to claim 42, characterized in that the structural bottom plate (2) at the location of the inner rib cavity (3) is reinforced by section steel (26). 44. The cavity member for hollow slabs according to claim 42, characterized in that the section steel (26) is flat iron, angle steel or I-shaped steel.

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