CN107119800A - A kind of many high-rise assembled modularization Self-resetting steel construction square tube post frame systems - Google Patents

Abstract

A multi-high-rise assembled modular self-resetting steel structure square tube column frame system belongs to the technical field of structural engineering and includes outer node modules, corner node modules and inner node modules. The invention proposes a new type of assembled module, which intercepts the joints and inflection points of the frame and assembles them as a whole. Reduced steel usage and reduced connection difficulty. The design of the prestressed steel strand can reduce the residual deformation of the frame joints after the earthquake and realize the effect of self-resetting. The setting of supporting plate, cover plate and outer rib can make the beam be precisely positioned and at the same time improve the stability of the node. The outer ribs are arranged inside the beam flange, which can not only improve the local bearing capacity, but also achieve an aesthetic effect. Moreover, in the production and construction of the steel structure system, modularization, factoryization, standardization and assembly are combined to realize factory production and reduce project cost.

Description

A multi-high-rise assembled modular self-resetting steel structure square tube column frame system

technical field

The invention relates to a multi-high-rise assembled modular self-resetting steel structure square pipe column frame system, which belongs to the technical field of structural engineering.

Background technique

In the whole life cycle of the building, save resources to the greatest extent (land saving, energy saving, water saving, material saving), protect the environment and reduce pollution, provide people with healthy, applicable and efficient use of space, and a building that coexists harmoniously with nature . This concept is an important strategic transformation for changing the mode of economic growth and promoting sustainable development, and it truly provides a major opportunity for the innovation and industrialization of the corresponding system of steel structures for houses (residential buildings) in my country.

At present, the systematic research on high-rise steel structure residences at home and abroad is in its infancy, and the innovation of industrially assembled high-rise steel structure systems is imperative. A lot of welding is used in the construction of traditional steel structure residential buildings, the construction speed is slow, and the pollution to the environment is serious. The most important thing is that the quality of the welds is not suitable for control, which seriously affects the safety performance of the building.

Contents of the invention

The invention proposes a multi-high-rise assembled modular self-resetting steel structure square pipe column frame system belonging to the technical field of structural engineering. The purpose is to propose a new type of prefabricated module, which intercepts the nodes and inflection points of the frame and assembles it as a whole. The bending moment at the inflection point of the frame is very small, and the column and column can be connected in a weaker and flexible way. Reduce the amount of steel and reduce the difficulty of connection. The design of the prestressed steel strand can reduce the residual deformation of the frame joints after the earthquake and realize the effect of self-resetting. The setting of supporting plate, cover plate and outer rib can make the beam be precisely positioned and at the same time improve the stability of the node. The outer ribs are arranged inside the beam flange, which can not only improve the local bearing capacity, but also achieve an aesthetic effect. Moreover, in the production and construction of the steel structure system, modularization, factoryization, standardization and assembly are combined to realize factory production and on-site quick assembly. On the premise of ensuring the construction quality, the construction speed is improved and the cost is reduced. The construction period is shortened, and the project cost is reduced.

A multi-high-rise assembled modular self-resetting steel structure square pipe column frame system, the system includes an outer node module (A), a corner node module (B) and an inner node module (C); the system includes an outer node module (A ), corner node module (B) and inner node module (C); described corner node module (B) and inner node module (C) are similar in composition and structure to outer node module (A), and corner node module (B) is L-shaped structure, the inner node module (C) is a cross-shaped structure, and the outer node module (A) is a T-shaped structure. The outer node module (A) is set in the middle of the periphery of the steel structure square tube column frame system, the corner node module (B) is set at the corner of the steel structure square tube column frame system, and the inner node module (C) is set in the steel structure square tube The middle position of the column frame system;.

The outer node module (A) includes a square column (1), a beam (2), a prestressed steel strand I (3), a prestressed steel strand II (4), a supporting plate (5), a cover plate ( 6), outer ribs (7), stiffening ribs (8), end plate I (9) and end plate II (10). The length of the square pipe column (1) is the floor height, and the support plate (5) is welded on three adjacent sides in the middle of the square pipe column (1), and the support plate (5) is guaranteed to be horizontal, and the distance above the support plate (5) is one beam height Weld the cover plate (6) horizontally in place, and ensure that the distance between the upper surface of the supporting plate (5) and the lower surface of the cover plate (6) is a beam height. Vertically weld the outer ribs (7) on both sides of each supporting plate (5), and ensure that the outer surface of the outer ribs (7) is on the same plane as the side of the square pipe column (1). The end plate II (10) is welded on the side of the square pipe column (1), and it is ensured that the end plate II (10) is between the supporting plate (5) and the cover plate (6). The beam (2) adopts H-shaped steel, and the end plate I (9) is welded at the beam end close to the column, and the stiffening rib (8) is welded vertically in the middle of the beam. The prestressed steel strand I (3) passes through the square pipe column (1) from the stiffened rib (8) in one side beam to the stiffened rib (8) in the other side beam; the prestressed steel strand I (3) ) is locked with a lock on the outside of the rib (8). The prestressed steel strand II (4) passes through the square tubular column (1) from the end plate II (10) on one side of the square tubular column (1) to the stiffened rib (8) in the other side beam; the prestressed steel strand Line II (4) is locked with a lock at the rib (8) and end plate II (10) respectively.

In the multi-story assembled modular self-resetting steel structure square tube column frame system, the beams between the modules are connected by bolts, including the connecting plate I (11) and the connecting plate II (12). The connecting plate I (11) is placed outside the beam flange, and the connecting plate II (12) is placed inside the beam flange. However, the connection form between beams is not limited to this form, and other bolt connection forms can also be used.

The connection of the columns between the modules in the multi-high-rise assembled modular self-resetting steel structure square tube column frame system can be connected by bolts or welding, and different connection methods can be selected according to different conditions; Pour concrete to strengthen the column connections.

In the outer node module (A), the supporting plate (5) and the cover plate (6) have the same size, and the end plate I (9) and the end plate II (10) and the column have bolt holes with the same position and the same size. In the connection of the beams between the modules, the connecting plate I (11) and the connecting plate II (12) have the same length, and have bolt holes with opposite positions and the same size. The bolt holes are arranged as single or multiple rows of bolt connections. Quantity and specifications depend on specific circumstances.

In the multi-story prefabricated modular self-resetting steel structure square tube column frame system, all components are prefabricated and processed in the factory, and the assembly of each module is completed in the factory. Firstly, the beams and columns and the relevant upper ribs are welded, and then the beams are placed between the support plate (5) and the cover plate (6), and then the prestressed steel strands are threaded for tension and anchoring, and each module can be realized. production. On site, it is only necessary to connect columns to columns and bolts to beams to complete the frame; according to actual engineering needs, concrete can be poured in the columns.

The beneficial effect of the present invention is that all the modules in the above-mentioned multi-story assembled modular self-resetting steel structure square pipe column frame system are processed and prefabricated in the factory, and the construction can be completed only by installing the connectors between the modules on site. Since the bending moment at the inflection point of the frame is very small, a weak connection method can be used between the columns, and the connection method is flexible, reducing the amount of steel and reducing the difficulty of connection. The design of the prestressed steel strand can reduce the residual deformation of the frame joints after the earthquake and realize the effect of self-resetting. The setting of supporting plate, cover plate and outer rib can make the beam be precisely positioned and at the same time improve the stability of the node. The outer ribs are arranged inside the beam flange, which can not only improve the local bearing capacity, but also achieve an aesthetic effect. Moreover, in the production and construction of the steel structure system, modularization, factoryization, standardization and assembly are combined to realize factory production and on-site quick assembly. On the premise of ensuring the construction quality, the construction speed is improved and the cost is reduced. The construction period is shortened, and the project cost is reduced.

Description of drawings

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

Fig. 1 is a schematic diagram of an assembled modular self-resetting frame of the present invention

Fig. 2 is a schematic diagram of an external node module of the present invention

Fig. 3 is the schematic diagram of beam structure of the present invention

Fig. 4 is a schematic diagram of column structure of the present invention

Fig. 5 is the schematic diagram of prestressed steel strand I of the present invention

Fig. 6 is the schematic diagram of prestressed steel strand II of the present invention

Fig. 7 is the connection schematic diagram of each module beam of the present invention

In the figure: 1—square pipe column, 2—beam, 3—prestressed steel strand I, 4—prestressed steel strand II, 5—supporting plate, 6—cover plate, 7—outer rib, 8—reinforcing Rib, 9—end plate I, 10—end plate II, 11—connecting plate I, 12—connecting plate II.

detailed description

The present invention is described in detail below in conjunction with accompanying drawing:

As shown in Figure 3, the beam (2) in the multi-high-rise assembled modular self-resetting steel structure square tube column frame system adopts H-shaped steel, and the end plate I (9) is welded at the beam end near the column, and in the middle of the beam Weld stiffeners (8) vertically.

As shown in Figure 4, the length of the square pipe column (1) in the frame system of the multi-high-rise assembled modular self-resetting steel structure square pipe column is the floor height, and the supporting plates are welded on three adjacent sides in the middle of the square pipe column (1) (5), and ensure that the supporting plate (5) is horizontal, weld the cover plate (6) horizontally at a distance of one beam height above the supporting plate (5), and ensure that the upper surface of the supporting plate (5) is under the cover plate (6) The distance between surfaces is one beam height. Vertically weld the outer ribs (7) on both sides of each supporting plate (5), and ensure that the outer surface of the outer ribs (7) is on the same plane as the side of the square pipe column (1). The end plate II (10) is welded on the last side of the square column (1), and it is ensured that the end plate II (10) is between the supporting plate (5) and the cover plate (6).

As shown in Figure 5, the prestressed steel strand I (3) passes through the square pipe column (1) from the stiffened rib (8) in one side beam to the stiffened rib (8) in the other side beam; Steel strand 1 (3) locks with lock head on the outside of reinforcing rib (8).

As shown in Figure 6, the prestressed steel strand II (4) passes through the square pipe column (1) from the end plate II (10) on one side of the square pipe column (1) to the stiffened rib (8) in the other side beam. ); the prestressed steel strand II (4) is locked with a lock at the reinforcing rib (8) and the end plate II (10) respectively.

As shown in Figure 2, in the outer node module (A), the supporting plate (5) and the cover plate (6) have the same size, and the end plate I (9) and the end plate II (10) are opposite to the column, Bolt holes of the same size. In the connection of the beams between the modules, the connecting plate I (11) and the connecting plate II (12) have the same length, and have bolt holes with opposite positions and the same size. The bolt holes are arranged as single or multiple rows of bolt connections. Quantity and specifications depend on specific circumstances. In the multi-story prefabricated modular self-resetting steel structure square tube column frame system, all components are prefabricated and processed in the factory, and the assembly of each module is completed in the factory. First, the beam and column and the upper ribs are welded, and then the beam is placed between the supporting plate (5) and the cover plate (6), and then the prestressed steel strand is stretched and anchored, and each module can be realized. production. Only column-to-column connections and beam-to-beam bolted connections are required on site to complete the frame.

Claims (5)

1. A multi-high-rise assembled modular self-resetting steel structure square pipe column frame system is characterized in that: the system includes an outer node module (A), a corner node module (B) and an inner node module (C); the system It includes an outer node module (A), a corner node module (B) and an inner node module (C); the corner node module (B) and the inner node module (C) are similar in composition and structure to the outer node module (A), and the corner The node module (B) is an L-shaped structure, the inner node module (C) is a cross-shaped structure, and the outer node module (A) is a T-shaped structure; the outer node module (A) is set in the middle of the periphery of the square tube column frame system of the steel structure , the corner node module (B) is set at the corner of the steel structure square tube column frame system, and the inner node module (C) is set at the middle position of the steel structure square tube column frame system; The outer node module (A) includes a square column (1), a beam (2), a prestressed steel strand I (3), a prestressed steel strand II (4), a supporting plate (5), a cover plate ( 6), outer ribs (7), reinforced ribs (8), end plate I (9) and end plate II (10); Weld the supporting plate (5) adjacent to three sides, and ensure that the supporting plate (5) is horizontal, and weld the cover plate (6) horizontally above the supporting plate (5) at a distance of one beam height, and ensure that the upper surface of the supporting plate (5) reaches the cover The distance between the lower surfaces of the plates (6) is a beam height; the outer ribs (7) are vertically welded on both sides of each supporting plate (5), and ensure that the outer surfaces of the outer ribs (7) are in contact with the square pipe column (1) The sides are on the same plane; the end plate II (10) is welded on the side of the square column (1), and the end plate II (10) is ensured between the support plate (5) and the cover plate (6); the beam (2) adopts H-shaped steel, welding the end plate I (9) at the beam end near the column, and vertically welding the reinforcement rib (8) in the middle of the beam; the prestressed steel strand I (3) from the reinforcement rib (8) in the side beam ) through the square pipe column (1) to the stiffened rib (8) in the other side beam; the prestressed steel strand I (3) is locked with a lock on the outside of the stiffened rib (8); the prestressed steel strand II(4) passes through the square pipe column (1) from the end plate II(10) on one side of the square pipe column (1) to the stiffener rib (8) in the other side beam; the prestressed steel strand II(4) Lock them with locks at the ribs (8) and the end plate II (10) respectively. 2. A multi-high-rise assembled modular self-resetting steel structure square pipe column frame system according to claim 1, characterized in that: each of the multi-high-rise assembled modular self-resetting steel structure square pipe column frame system The beams between modules are connected by bolts, including connecting plate I (11) and connecting plate II (12); connecting plate I (11) is placed outside the beam flange, and connecting plate II (12) is placed inside the beam flange. 3. A multi-high-rise assembled modular self-resetting steel structure square pipe column frame system according to claim 1, characterized in that: each of the multi-high-rise assembled modular self-resetting steel structure square pipe column frame system The connection of the columns between the modules adopts bolt connection or welding connection, and different connection methods can be selected according to different conditions; concrete is poured in the columns as required to strengthen the connection of the columns. 4. A kind of multi-high-rise assembled modular self-resetting steel structure square pipe column frame system according to claim 1, characterized in that: in the outer node module (A), supporting plate (5) and cover plate ( 6) With the same size, the end plate I (9) and the end plate II (10) and the column have bolt holes of the same position and the same size; in the connection of the beams between the modules, the connecting plate I (11) and the connecting plate II (12) have the same length, have bolt holes with opposite positions and the same size, and the bolt holes are arranged as a single row or multiple rows of bolt connections, and the number and specifications of the bolts are determined according to specific conditions. 5. A multi-high-rise assembled modular self-resetting steel structure square pipe column frame system according to claim 1, characterized in that: in the multi-high-rise assembled modular self-resetting steel structure square pipe column frame system, all components All are prefabricated and processed in the factory, and the assembly of each module is completed in the factory; first, the beams and columns and the upper ribs are welded, and then the beams are placed between the supporting plate (5) and the cover plate (6), Then the prestressed steel strands are stretched and anchored to realize the production of each module; on site, only the connection between columns and the bolt connection between beams and beams is required to complete the frame; according to actual engineering needs, it can be Concrete is poured into the columns.