CN205296407U - Embedded steel construction assembly house post roof beam connection structure - Google Patents

Abstract

An embedded steel structure assembled residential column-beam connection structure, which includes an upper section column (1), a lower section column (2) and an I-shaped steel beam (4); the upper section column (1) and the lower section column (2) are connected by welding; The upper and lower flanges and webs at one end of the beam (4) are welded to the upper column (1) and the lower column (2), and the upper column (1) and the lower column (2) face the I-beam The upper and lower flanges of the beam (4) are internally provided with a diaphragm (7), and the periphery of the diaphragm (7) is welded to the inner surface of the corresponding upper or lower column; the I-shaped steel beam (4 ) is the on-site installation node, which is characterized in that the on-site installation end of the I-beam (4) and the web at one end of the on-site installation I-beam (3) pass through the connecting plate (5) and high-strength connecting bolts (6 ) are connected, and the on-site installation of the I-beam (3) and the upper and lower flanges of the I-beam (4) are connected by groove welding on site. The utility model has the advantages of simple structure, high connection strength and good shock resistance.

Description

Embedded Steel Structure Assembled Residential Column-Beam Connection Structure

technical field

The utility model relates to a building technology, in particular to a prefabricated building component that can be produced in a factory and assembled on site, in particular a post-beam connection structure for assembling residential buildings with embedded steel structures.

Background technique

At present, there are mainly three types of steel structure residential technologies on the market: one is low-rise light steel keel residential technology; the second is medium and high-rise steel structure support system + block wall; the third is medium and high-rise steel structure support system + Lightweight wall panel technology; the first technology is relatively mature, but because the main structure adopts cold-formed thin-walled steel with limited bearing capacity, it is not suitable for multi-storey and high-rise buildings, and it is difficult to promote on a large scale. The second type is far from the concept of building industrialization due to the large amount of on-site masonry work and does not conform to the future development direction. The third technology is still in development and is far from mature, and there are still some technical problems. The biggest problem is that both the inner and outer walls are made of grouted lightweight wallboards, which is easy to cause structural displacement at the connection of the main structure. This phenomenon is particularly prone to occur in some high-rise residential buildings, and this problem is more prominent in some pilot communities that have been built. In addition to the three structures mentioned above, there is also an embedded steel structure assembly building system, which is a green new type of assembly steel structure building system, which is based on the modular "double module" coordination and "module combination" Technology is the main feature of the building and an industrialized building technology system characterized by embedded steel structures and PC panels. This technology runs through the entire process of building (residential) design, processing, installation, equipment installation, decoration, and smart home. , Realize the industrialization, intensification and socialization of the whole process of housing construction, thereby improving the quality and efficiency of construction projects, and realizing energy saving, emission reduction and resource conservation.

The main features of this embedded assembly house are: the building system adopts a dual-modulus coordination mechanism to form modules, which can combine the building planes and building facades of various houses from 80㎡ to 160㎡. As long as the standard board formed by the basic module and some special-shaped boards are added, the plane and elevation dimensions of various living requirements can be met, thereby forming a standardized design and laying the foundation for factory production. The building adopts a steel structure load-bearing system and PC large slab series, laminated floor (roof) panels, EC wall panels, and ALC wall panels to form a complete main structure, which improves the service life and seismic performance of the building. The PC slab adopts an internal insulation structure with concrete on both sides and an insulation layer in the middle, which meets the thermal insulation function and improves the energy-saving effect. At the same time, it meets the requirements of fire prevention and sound insulation. Scaffolding, formwork, plastering and other projects have been basically canceled, beams, columns cast-in-place and steel bar binding and other processes have been cancelled, wet operations on site have been reduced, and the integrated decoration has a flat and smooth surface of the model, eliminating the need for traditional mortar to find Equal process, can directly carry out puttying, whitening and other processes, saving materials. Therefore, the construction period of this prefabricated industrial building is shortened by 2/3 compared with the conventional one, and the labor cost is reduced by 2/3, which ensures safe production and engineering quality. At the same time, the usable area of steel structure residences can be increased by 3% to 5%, and the advantages of energy saving and environmental protection are prominent. After comparative analysis of the cost of the main structure, the cost of the steel structure prefabricated house is basically the same as that of the traditional concrete structure, but its construction period is 1/3 of the traditional one, shortening the investment recovery period, and judging from the current steel market price trend, Traditional labor costs continue to increase, steel prices are falling, and the cost of steel structure housing is expected to further decrease. As one of the key technologies of the embedded steel structure assembly building system, the connection between the square-section column and the I-beam beam is directly related to the load-bearing and seismic capacity of the structure.

Utility model content

The purpose of this utility model is to design an embedded steel structure assembled residential post-beam connection structure according to the needs of the embedded steel structure assembled building system, so as to improve the strength and earthquake resistance of the building structure.

The technical scheme of the utility model is:

An embedded steel structure assembled residential column-beam connection structure, which includes an upper section column 1, a lower section column 2 and an I-shaped steel beam 4; the upper section column 1 and the lower section column 2 are connected by welding; The flanges and webs are welded to the upper column 1 and the lower column 2, and the upper and lower flanges of the upper column 1 and the lower column 2 facing the I-beam 4 are provided with a diaphragm 7 inside. The surroundings of the plate 7 are connected by welding with the inner surface of the corresponding upper or lower column; The web at one end of the beam 3 is connected through the connecting plate 5 and the high-strength connecting bolt 6 , and the I-beam 3 is installed on site and the upper and lower flanges of the I-beam 4 are connected by groove welding on site.

One end of the I-beam 4 is connected to the on-site groove welding of the upper and lower flanges of the I-beam 3, and the on-site installation end of the I-beam 4 is connected to the web of the I-beam 3 on-site. The plates are connected through connecting plates 5 and high-strength connecting bolts 6 .

The upper and lower flanges and webs of the I-beam 4 are welded to the corresponding upper column 1 and lower column 2 .

The beneficial effects of the utility model:

The utility model has the advantages of simple structure, high connection strength and good shock resistance.

The utility model welds the diaphragm in the rectangular tube, pre-welds the short steel girder outside the column, welds the flange of the steel beam and the pre-welded short steel girder flange outside the column, and connects the web and the pre-welded short steel girder web with double splint high-strength bolts. It not only improves the ductility of the joint, but also solves the problem of connecting the rectangular pipe column and the rigid joint of the beam when the column wall plate is thin.

The utility model adopts steel as the column and beam, which has tensile, compressive and shearing resistance, and can be bent relatively, and is a material with excellent ductility. When there is a strong earthquake energy, the elastic deformation of steel can be relied on to absorb the strong external force and overcome rigidity with softness. The beam-to-column joint with a short beam inner diaphragm is used, and the plastic hinge moves from the column surface to the beam at a certain distance from the column surface under the action of the earthquake, which fully protects the beam-column weld and avoids the deterioration of the connection deformation capacity resulting in brittle failure.

The steel frame and frame-supporting structure system of the utility model has high energy consumption capacity and excellent plastic performance, and the biggest advantage compared with the concrete structure is that the structure self-weight is reduced, and the adverse effects during earthquakes are reduced, such as The overturning moment at the bottom of the structure, reducing the representative value of gravity load, etc.

The rectangular tube concrete column of the utility model has relatively large plastic deformation when it is destroyed, which improves the energy consumption capacity of the building; the steel tube and the concrete work together, the node domain has high rigidity, and the shear bearing capacity is high, which can prevent the pure steel column from being damaged in large The shortcoming of shear failure is easy to occur under earthquake conditions; under strong earthquakes, it is easier to meet the seismic mechanism requirements of strong columns and weak beams.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Fig. 2 is a rear view of Fig. 1 .

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

As shown in Figure 1 and 2.

An embedded steel structure assembled residential column-beam connection structure, which includes an upper section column 1, a lower section column 2 and an I-shaped steel beam 4; the upper section column 1 and the lower section column 2 are connected by welding; The flanges and webs are welded to the upper column 1 and the lower column 2, and the upper and lower flanges of the upper column 1 and the lower column 2 facing the I-beam 4 are provided with a diaphragm 7 inside. The surroundings of the plate 7 are connected by welding with the inner surface of the corresponding upper or lower column; The web at one end of the beam 3 is connected through the connecting plate 5 and the high-strength connecting bolt 6 , and the I-beam 3 is installed on site and the upper and lower flanges of the I-beam 4 are connected by groove welding on site.

As shown in Figure 1.

The utility model adopts a beam-column connection node with a short beam (transitional I-steel smart short beam) with an inner diaphragm, and the plastic hinge moves from the column surface to the beam at a certain distance from the column surface under the action of the earthquake, which fully protects the beam. Column welds, avoiding brittle failure due to deterioration of the joint's deformability.

The parts not involved in the utility model are all the same as the prior art or can be realized by adopting the prior art.

Claims (3)

1. An embedded steel structure assembled residential column-beam connection structure, which includes upper column (1), lower column (2) and I-shaped steel beam (4); upper column (1) and lower column (2) are connected by welding ; The upper and lower flanges and webs at one end of the I-beam (4) are welded to the upper column (1) and the lower column (2), wherein the upper column (1) and the lower column (2) are facing the work The upper and lower flanges of the cross-shaped steel beam (4) are internally provided with a transverse diaphragm (7), and the surroundings of the transverse diaphragm (7) are connected to the inner surface of the corresponding upper column or lower column by welding; the I-shaped steel beam The other end of (4) is the on-site installation node, which is characterized in that the on-site installation end of the I-beam (4) and the web at one end of the on-site installation I-beam (3) pass through the connecting plate (5) and high-strength connecting bolts (6) Connected, on-site installation of the I-beam (3) and the upper and lower flanges of the I-beam (4) are connected by groove welding on site. 2. The post-beam connection structure of the embedded steel structure assembly house according to claim 1, characterized in that one end of the I-beam (4) and the upper and lower wings of the I-beam (3) installed on site The on-site groove welding of the edge is connected, and the on-site installation end of the I-beam (4) is connected with the web plate at one end of the on-site installation I-beam (3) through the connecting plate (5) and high-strength connecting bolts (6). 3. The post-beam connection structure of the embedded steel structure assembly house according to claim 1, characterized in that the upper and lower flanges and webs of the I-beam (4) and the corresponding upper column (1) , The lower column (2) is connected by welding.