CN116005803A - A steel modular integrated building structure system with plastically controllable nodes - Google Patents

Abstract

The invention relates to a steel mould blocking integrated building structure system with a plastic controllable node, which comprises a module column, a module upper beam, a module lower beam and the plastic controllable node, wherein the plastic controllable node is used for connecting the module column and the module lower beam, and the plastic controllable node is used for connecting the module column and the module upper beam. A steel modularized integrated building structure system of a plastic controllable node adopts the plastic controllable node with buckling-preventing flange plates and pin connecting webs, and has simple structure and easy construction; the structure plasticity is controllable, and the ductility and the shock resistance energy consumption capacity of the structure system are improved; the system can reduce the adverse effect of earthquake action in high-intensity areas on modular buildings, reduce the cross section size of the structure, increase the use area of the buildings and reduce the use cost.

Description

A steel modular integrated building structure system with plastically controllable nodes

technical field

The invention relates to a modular integrated building structure system with plastically controllable nodes, belonging to the technical fields of prefabricated buildings, modular buildings and structural shock absorption.

Background technique

A building assembled on site by prefabricated components is called a prefabricated building. It has the advantages of short construction period and low environmental impact. Among them, Modular Integrated Construction (MiC for short) is the prefabricated building with the highest assembly rate and the highest degree of industrialization. However, at present, domestic modular buildings have the defects of poor overall performance and low seismic performance, and the structure is required to meet the requirements of "strong columns and weak beams", "strong nodes and weak members", "strong shear and weak bending", etc. Seismic requirements are required to ensure the ductility of the structure. In order to meet the requirements of earthquake resistance, especially in high-intensity areas, in the prior art, the method of increasing the structural cross-section is often used to resist the earthquake. However, this earthquake-resistant measure will lead to an increase in the amount of structural materials, compress the building area, and increase the difficulty of building construction. large and increase construction costs. How to design a modular structure system with plastically controllable nodes, improve the structural ductility and energy dissipation capacity, and reduce the adverse effects of earthquakes on the modules are the problems to be solved by the present invention.

Contents of the invention

(1) Technical problems to be solved

In order to solve the above-mentioned problems in the prior art, the present invention provides a steel modular integrated building structure system with plastically controllable nodes.

(2) Technical solution

In order to achieve the above object, the main technical solutions adopted in the present invention include:

A steel modular integrated building structure system with plastically controllable nodes, which includes modular columns, module upper beams, module lower beams and plastically controllable nodes, the plastically controllable nodes are used to connect module columns and module lower beams, plastic Controllable nodes are used to connect module columns and module upper beams.

For the above-mentioned steel modular integrated building structure system, preferably, the modular column is a steel structural box-shaped column, and the modular lower beam and the modular upper beam are both steel structural beams, specifically box-shaped or I-shaped.

In the steel modular integrated building structure system described above, preferably, each of the plastically controllable nodes includes a buckling restraint plate, a connecting beam end, a connecting pin and a connecting bolt, and two buckling restraining plates are arranged symmetrically; There are two connecting beam ends, and the connecting beam ends are respectively fixed on the module column and the module lower beam or the module upper beam. The buckling restraint plate and the connecting beam end are fixedly connected by connecting bolts. The two buckling restraint plates are arranged in parallel, and the connecting pin Bolts fixedly connect two adjacent connecting beam ends.

In the above-mentioned steel modular integrated building structure system, preferably, the buckling restraint plate includes a low yield point plate, a rubber protective layer and a restraint sleeve, wherein the low yield point plate is small in the middle and large in both sides and is easy to yield Into the plastic steel plate, the low yield point plate is provided with a through hole, the constraint sleeve is set in the middle of the low yield point plate, and the rubber protective layer is set between the low yield point plate and the constraint sleeve.

In the above-mentioned steel modular integrated building structure system, preferably, the connecting beam end includes two flanges, two webs and end plates, and the two flanges and the two webs are fixedly connected to the module columns, The module lower beam or the module upper beam is suitable for the structure. The end plate is fixed on one end formed by the two wing plates and the two web plates, and the other end is fixedly connected with the module column, the module lower beam or the module upper beam; There are wing plate through holes, and the through holes of the wing plate and the through holes on the low yield point plate are fixedly connected by connecting bolts and nuts.

In the steel modular integrated building structure system described above, preferably, the connecting pins include connecting lugs and pins, the connecting lugs are fixed on the end plates at the end of each connecting beam, and the connecting lugs are provided with pins Holes, when used for connection, use a pin to pass through two adjacent connecting ear plates to achieve a fixed connection.

In the steel modular integrated building structure system described above, preferably, one end of the buckling restraint plate is fixed on the connecting beam end of the module column through connecting bolts and nuts, and the other end is fixed under the module through connecting bolts and nuts Beam or module on the connecting beam end of the beam.

(3) Beneficial effects

The beneficial effects of the present invention are:

The invention provides a steel modular integrated building structure system with plastically controllable nodes, which adopts plastically controllable nodes with anti-buckling flange plates and pin bolts to connect webs, which has a simple structure and is easy to construct; and realizes structural plasticity Controllable, improving the ductility and seismic energy consumption capacity of the structural system; the formed system can reduce the adverse effects of earthquakes in high-intensity areas on modular buildings, reduce the size of the structural section, increase the usable area of the building, and reduce the cost of use .

Description of drawings

Fig. 1 is a schematic diagram of the stacking of the steel modular integrated building structure system with plastically controllable nodes of the present invention;

Fig. 2 is a structural schematic diagram of a plastically controllable node;

Fig. 3 is a top view of a buckling restrained plate;

Figure 4 is a side view of a buckling restraint plate;

Figure 5 is a front view of the buckling restraint plate;

Fig. 6 is the front view of connecting beam end;

Fig. 7 is the front view of connecting pin;

Fig. 8 is a top view of the connecting pin.

[Description of Reference Signs]

1: module column;

2: Module lower beam;

3: module upper beam;

4: buckling restraint plate;

5: buckling restraint plate;

6: Connect the beam end;

7: connecting pin;

8: Connecting bolts

9: Low yield point plate;

10: rubber protective layer;

11: Constraint sleeve;

12: through hole;

13: wing plate;

14: web;

15: end plate;

16: connect the ear plate;

17: pin hole;

18: Pin bolt.

Detailed ways

In order to better explain the present invention and facilitate understanding, the present invention will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

Example 1

A steel modular integrated building structure system with plastically controllable nodes, as shown in Figure 1, it includes a modular column 1, a module lower beam 2, a module upper beam 3, and a plastically controllable node 4 for connecting, Among them, the module column 1 is a steel structure box column, the module lower beam 2 is a steel structure beam, and the module upper beam 3 is also a steel structure beam. The steel structure beams of the module lower beam 2 and the module upper beam 3 can be box-shaped or industrial glyph. The plastically controllable node 4 is used to connect the module column 1 and the module lower beam 2 , and the plastically controllable node 4 is used to connect the module column 1 and the module upper beam 3 .

The module lower beam 2 and the module upper beam 3 can be provided with two or more, and the module lower beam 2 and the module upper beam 3 can be adjacently arranged in parallel, and can also be arranged at intervals.

There are multiple plastically controllable nodes 4 , as shown in FIG. 2 , each plastically controllable node 4 is composed of two buckling restraint plates 5 , two connecting beam ends 6 , connecting pins 7 and multiple connecting bolts 8 . The connecting beam ends 6 are respectively fixed on the module column 1 to be connected, the module lower beam 2 or the module upper beam 3, the buckling restraint plate 5 and the connecting beam end 6 are fixedly connected by connecting bolts 8, and the two buckling restraint plates 5 Symmetrically arranged, the connecting pins are fixedly connected to the two connecting beam ends 6 .

Wherein, as shown in FIG. 3 , FIG. 4 and FIG. 5 , the buckling restraint plate 5 includes a low yield point plate 9 , a rubber protective layer 10 , and a restraint sleeve 11 . The constraining sleeve 11 is sheathed in the middle of the low yield point plate 9 , and the rubber protection layer 10 is disposed between the low yield point plate 9 and the constraining sleeve 11 . The low-yield-point plate 9 is a steel plate with a small middle and large sides that is easy to yield and enter plasticity. The low-yield-point plate 9 yields first to dissipate energy under the action of an earthquake, realizing reciprocating energy dissipation. A plurality of through holes 12 are respectively opened at both ends of the low yield point plate 9 . The inside of the restraint sleeve 11 is hollow, and the low yield point plate 9 is inserted into the restraint sleeve 11. The restraint sleeve 11 restrains and prevents the low yield point plate from buckling. The connection between the low yield point plate 9 and the restraint sleeve 11 The rubber protective layer 10 arranged between them increases the damping effect of the relative sliding between the low yield point plate 9 and the restraining sleeve 11 .

The structural diagram of the connecting beam end is shown in FIG. 6 , which includes two wing plates 13 , two web plates 14 and an end plate 15 . The two wing plates 13 and the two web plates 14 are fixedly connected by welding to form a square shape, and their ends are welded together by an end plate 15 , which is located at one end for connecting the beam end 6 . The wing plate 13 has a wing plate through hole, and the wing plate and the low yield point plate 9 are fixedly connected through the through hole through bolts and nuts, and the module column 1 or the module lower beam 2 and the module upper beam 3 are fixedly connected. The connecting beam end flange and web are fixedly connected to the modular column and modular beam. The two ends of the module column 1, the module lower beam 2, and the module upper beam 3 are all fixed on the side without the end plate of the connecting beam end 6.

The connecting pins include connecting lugs 16 and pins 18, as shown in Figures 7 and 8, the connecting lugs have pin holes 17; the connecting lugs 16 are fixed on the end plates 15 at the ends of each connecting beam.

When fixing during installation, the pin hole 17 on the end plate of the connecting beam end of the module column 1 corresponds to the position of the pin hole 17 fixed on the end plate of the connecting beam end of the module lower beam 2 or the module upper beam 3, and the pin 18 passes through The two corresponding pin holes 17 are fixed to realize the connection between the connecting beam end 6 of the module column 1 and the web fixed to the connecting beam end 6 of the module lower beam 2 or the module upper beam 3, so as to realize the joint web axial force, Transmission of shear force.

One end of the buckling restraint plate is fixed on the connecting beam end of the module column with bolts and nuts, and the other end is fixed on the connecting beam end of the lower beam of the module or the upper beam of the module with bolts and nuts, that is to say, two symmetrical buckling restraining plates They are respectively placed on the wing plate on the side of the end plate at the end of the connecting beam, and the buckling restraint plate and the end of the connecting beam are connected by connecting bolts, and the connecting bolts include connecting screw rods and connecting nuts. The connecting screw passes through the through hole of the buckling restraint plate and the through hole of the wing plate, and then is fixed with a connecting nut to realize the connection between the buckling restraint plate and the connecting beam end, so as to realize the connection beam end fixed on the module column and the lower beam of the module Or the connection of the flanges of the upper beams of the modules to the beam ends to realize the transmission of the axial force of the joint flanges (that is, the transmission of the bending moment at the beam ends).

The steel modular integrated building structure system with plastically controllable nodes provided above has a plastic steel modular integrated building structure system with buckling-resistant flange plates and pin-bolt connection webs, and its structure is simple.

Single construction is convenient; the plastically controllable joints of the five-piece steel module with buckling-resistant flange plates and pin-bolt connection webs can realize the plastically controllable joints of the building structure system, which can realize reciprocating bending energy consumption and improve the module

Anti-seismic ability; plasticity controllable.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms. Any person skilled in the art can use the technical content disclosed above to modify

Alternate or modify equivalent embodiments with equivalent changes. But all without departing from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims (7)

1. The steel modularized integrated building structure system with the plastic controllable nodes is characterized by comprising module columns, module upper beams, module lower beams and the plastic controllable nodes, wherein the plastic controllable nodes are used for connecting the module columns and the module lower beams, and the plastic controllable nodes are used for connecting the module columns and the module upper beams.

2. The steel modular integrated building structure system according to claim 1, wherein the module columns are steel structure box columns, and the module lower beams and the module upper beams are steel structure beams, in particular box or i-shaped.

3. The steel modular integrated building structure system according to claim 1, wherein each of the plastic controllable nodes comprises buckling restrained plates, connecting beam ends, connecting pins and connecting bolts, and the buckling restrained plates are symmetrically arranged; the connecting beam ends are provided with two, the connecting beam ends are respectively fixedly arranged on the module column and the module lower beam or the module upper beam, the buckling restrained plates are fixedly connected with the connecting beam ends through connecting bolts, the two buckling restrained plates are arranged in parallel, and the connecting bolts are fixedly connected with the two adjacent connecting beam ends.

4. The steel modular integrated building structure system of claim 3, wherein the buckling restrained plate comprises a low yield point plate, a rubber protection layer and a restrained sleeve, wherein the low yield point plate is a steel plate with small middle and large two sides and easy to yield into plasticity, through holes are formed in the low yield point plate, the restrained sleeve is sleeved in the middle of the low yield point plate, and the rubber protection layer is arranged between the low yield point plate and the restrained sleeve.

5. The steel modular integrated building structure system according to claim 4, wherein the connecting beam end comprises two wing plates, two webs and an end plate, the two wing plates and the two webs are fixedly connected to form a structure matched with the module column, the module lower beam or the module upper Liang Xiangshi, the end plate is fixedly arranged at one end formed by the two wing plates and the two webs, and the other end is fixedly connected with the module column, the module lower beam or the module upper beam; the wing plate is provided with a wing plate through hole, and the wing plate through hole is fixedly connected with the through hole on the low yield point plate through a connecting bolt and a nut.

6. The steel modular integrated building structure system according to claim 5, wherein the connecting pins comprise connecting lugs and pins, the connecting lugs are fixedly arranged on the end plates of each connecting beam end, the connecting lugs are provided with pin holes for fixedly connecting by using the pins to pass through two adjacent connecting lugs when connecting.

7. A steel modular integrated building structure system according to claim 3, wherein one end of the buckling restrained plate is fixedly arranged on the connecting beam end of the module column through a connecting bolt and a nut, and the other end is fixedly arranged on the connecting beam end of the module lower beam or the module upper beam through a connecting bolt and a nut.

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