CN205804602U - A kind of assembling type steel structure frame system - Google Patents

Abstract

A prefabricated steel structure frame system, including columns, steel beams and shear wall panels, the columns include pipe columns formed by welding peripheral steel plates, concrete filling layers and reinforcement bars, and the pipe columns are filled with concrete to form concrete filling The inner wall of the peripheral steel plate is provided with reinforcing ribs; the top of the column is connected with the two ends of the steel beam by friction-type high-strength bolts, and the steel beam is a steel beam with an H-shaped cross section, wherein the steel beam includes an upper wing plate , the lower flange and the web connecting the upper and lower flanges, the web is provided with openings, and the pipelines are arranged through the openings on the web; a shear wall is hingedly connected outside the outer steel plate of the pipe column plate, and the shear wall plate is provided with oblique long holes. The frame beam-column joints are hinged, which separates the vertically distributed force from the horizontally distributed force in the frame shear wall structure system. It is not easy to break and damage prematurely.

Description

An assembled steel frame system

technical field

The utility model relates to the technical field of steel structure frames, in particular to an assembled steel structure frame system.

Background technique

Compared with concrete structures, steel structure system components can be produced in a standardized manner, the construction period is short, the quality is easy to control, and the materials can be recycled. It is an excellent structural system. However, at present, most of the existing steel structure system node designs in China use rigid nodes, which bear complex forces and bear relatively large negative bending moments. Chinese Patent No. CN201410111074.2 discloses an invention patent titled "Industrialized Assembled Honeycomb Beam Steel Structure Eccentric Support System with Rigid Nodes"; Chinese Patent No. CN201210063584.8 discloses a titled "A Steel Structure Beam-Column Assembly Invention patent of "type rigid joint"; Chinese patent number CN201010123152.2 discloses an invention patent titled "single-story steel structure workshop frame beam-column splicing rigid joint at construction site", etc., all belong to this type of rigid joint case.

In the frame structure, the cross-section of the column generally adopts a rectangular cross-section, a circular cross-section or an I-shaped cross-section. When the pillar is subjected to a large vertical load, the design cross-section is larger and the cross-section size is much larger than the thickness of the wall. The corners of the pillars will appear in the room, reducing the construction cost. Space utilization. When the steel girder adopts welded H-shaped steel, the section height is relatively large. If there is equipment and pipeline layout, when the section size of the solid web beam is designed to be large, the room use height (room use height is the building floor height minus the steel girder section height and The height of the equipment pipeline) will be reduced, and the net height of the room will be reduced, which will affect the comfort of the room. Chinese Patent No. CN201520433021.2 discloses a utility model named "a beam-column joint of steel structure", the steel column is a square steel pipe, and the steel beam is H-shaped steel; The utility model patent titled "Assembled Energy Dissipating Beam-Column Joint" states that the steel columns and steel beams are both H-shaped steel; the Chinese Patent No. CN201510495925.2 discloses a structure called "Connection structure between circular steel pipe concrete columns and steel beams". "The invention patent uses round steel pipe columns and H-shaped steel beams.

In the seismic design of frame structures, ordinary steel plate shear walls are prone to buckling under the action of seismic reciprocating tension and compression loads, which affects their energy dissipation performance. Chinese Patent No. CN201510067841.9 discloses an invention patent titled "An Assembled Energy-Dissipating Steel Plate Shear Wall"; Chinese Patent No. CN201410088303.3 discloses an invention patent titled "An Assembled Stiffened Steel Plate Shear Wall" Invention patents, etc. all belong to the solid web steel plate shear wall, which is prone to buckling under the reciprocating tension and compression of earthquakes, which affects the energy dissipation performance.

To sum up, the existing frame steel plate shear wall structure system has the following disadvantages:

1. Beam-column joints are rigid joints, which bear large negative bending moments, and the additional internal force of the structure under earthquake action is large.

2. The cross-section of ordinary steel beams and columns is large, and there are exposed corners of the columns in the room, which affects the use of building space.

3. Ordinary steel plate shear walls are prone to buckling under the reciprocating tension and compression of earthquakes, which affects the energy dissipation performance.

Therefore, how to design a steel frame system with clear stress, simple design, convenient construction, safety and reliability is an urgent problem in this field.

Utility model content

In order to overcome the problems existing in the prior art, the utility model provides an assembled steel structure frame system.

The technical solution adopted by the utility model to solve the technical problem is: the assembled steel structure frame system includes columns, steel beams and shear wall panels, and the columns include pipe columns formed by welding peripheral steel plates, concrete filling layers and Reinforcing ribs, the pipe column is filled with concrete to form a concrete filling layer, and reinforcing ribs are provided on the inner wall of the peripheral steel plate;

The top of the column is connected with the two ends of the steel beam by friction type high-strength bolts. The steel beam is a steel beam with an H-shaped cross section, wherein the steel beam includes an upper flange, a lower flange and a web connecting the upper and lower flanges , the web is provided with openings, and the pipelines are arranged through the openings on the web;

A shear wall panel is hingedly connected to the outside of the peripheral steel plate of the pipe column, and the shear wall panel is provided with oblique long holes.

Further, the shear wall board is a steel plate, and the shear wall board is provided with two layers, which are respectively an inner shear wall board and an outer shear wall board, and the inclined long holes on the inner and outer shear wall boards Different inclination directions form a cross arrangement, and the edges of the shear wall panels are hinged through end plates welded to the peripheral steel plates and bolts.

Further, the elongated holes are evenly arranged.

Further, the inclination angle of the elongated hole relative to the horizontal plane is 30° to 60°.

Further, the reinforcing ribs on the inner wall of the peripheral steel plate are arranged obliquely and intersecting.

Further, the upright column includes a central column, a corner column and a side column, the cross-section of the central column is cross-shaped, the cross-section of the corner column is L-shaped, and the cross-section of the side column is T-shaped.

Further, the openings are circular, hexagonal or special-shaped holes.

Further, the two ends of the steel beam are connected by friction-type high-strength bolts and plane end plates or grooved end plates welded to the outer peripheral steel plates.

In summary, the beneficial effects of the above-mentioned technical solution of the utility model are as follows:

1. The frame beam-column joints are hinged, which separates the vertically distributed force from the horizontally distributed force in the frame shear wall structure system. The force is clearly defined, which improves the energy consumption of the joints and increases the deformation at the joints, so that The joints are not easy to fracture and damage prematurely.

2. The frame column adopts special-shaped steel tube concrete column, which has high bearing capacity, and there are no exposed column edges and corners in the room, which improves the utilization rate of building space.

3. The steel beam adopts honeycomb beam, and the hole in the web plate of the honeycomb beam is beautiful and can be used to arrange pipeline equipment, without additional wiring pipelines, and the height of the building is increased.

4. The double-layer steel plate shear wall with oblique seams is adopted, and the oblique seams are arranged crosswise. The main purpose is to limit the buckling of the plates in the other direction when the plates in one direction are under tension. Under the action of seismic reciprocating tension and compression loads, the tension steel plate can provide out-of-plane support for the compression steel plate to limit its buckling and have good energy dissipation performance.

5. The components are connected by bolts, which is easy to disassemble and is conducive to the repair of the structure after the earthquake.

Description of drawings

Fig. 1 is the overall schematic diagram of the utility model hinged frame shear wall structure system;

Fig. 2 is the schematic diagram of the cross-sectional structure of the L-shaped column of the utility model;

Fig. 3 is a schematic diagram of the cross-sectional structure of a T-shaped column of the present invention;

Fig. 4 is a cross-sectional structural schematic diagram of a cross-shaped column of the present invention;

Fig. 5 is the longitudinal sectional structure schematic diagram of the column of the utility model;

Fig. 6 is the utility model steel girder structure schematic diagram;

Fig. 7 is a schematic diagram of a single-layer shear wall panel of the present invention;

Fig. 8 is the front view of the beam-column joint when the utility model adopts plane end plate connection;

Fig. 9 is a side view of the beam-column node when the utility model adopts plane end plate connection;

Fig. 10 is the front view of the beam-column joint when the utility model adopts grooved end plate connection;

Fig. 11 is a side view of the beam-column joint when the utility model adopts grooved end plate connection;

Fig. 12 is a top view of the beam-column joint when the utility model adopts grooved end plate connection.

In the picture:

1 Column, 2 Steel Beam, 3 Shear Wall Panel, 4 Pipe Column, 5 Concrete Filled Layer, 6 Reinforcing Rib, 7 Upper Flange, 8 Lower Flange, 9 Web, 10 Flat End Plate, 11 Grooved End Plate , 12 openings, 13 friction-type high-strength bolts, 14 long holes, 15 inner shear wall panels, 16 outer shear wall panels, and 17 end plates.

detailed description

The features and principles of the utility model will be described in detail below in conjunction with the accompanying drawings. The examples given are only used to explain the utility model, and are not intended to limit the protection scope of the utility model.

As shown in Figure 1 and Figure 5, the utility model includes a column, a steel beam and a shear wall panel, the column includes a pipe column formed by welding the outer steel plate, a concrete filling layer and a reinforcing bar, and the pipe column is filled with concrete A concrete filling layer is formed, reinforcing ribs are provided on the inner wall of the peripheral steel plate, the reinforcing ribs are tie bars, and the reinforcing ribs on the inner wall of the peripheral steel plate are arranged in an oblique crossing.

As shown in Figure 6, the top of the column and both ends of the steel beam are connected by friction-type high-strength bolts. The high-strength bolt connection, the end of the steel beam can rotate under the action of the earthquake, it is a hinged connection, which improves the energy consumption of the node and increases the deformation of the node when it is stressed. The node does not bear negative bending moment, but only bears the load from the beam. shear force. The steel beam is a steel beam with an H-shaped cross section, wherein the steel beam includes an upper flange, a lower flange and a web connecting the upper and lower flanges, the web is provided with holes, and the pipeline passes through the web The arrangement of openings on the Because the traditional pipeline layout needs to install pipeline layout equipment on the steel beam, the height of the steel beam is increased to a certain extent, that is, the use height of the room is reduced. On the one hand, setting holes on the steel beams can facilitate the layout of equipment and pipelines and increase the use height of the room; on the other hand, it can save steel, and the shape is beautiful, and the hole pattern should be easy to cut, and the honeycomb beams after the holes can resist external loads .

As shown in Figure 7, a shear wall panel is hingedly connected to the outer side of the outer steel plate of the pipe string, the shear wall panel is a steel plate, and the shear wall panel is provided with inclined long holes, and the long holes Arrange evenly. In addition, there are two layers of shear wall panels, which are inner shear wall panels and outer shear wall panels. The oblique long holes on the inner and outer shear wall panels have different inclination directions to form a cross arrangement. The edges are hinged by end plates and bolts welded to the surrounding steel plates. Of course, one or more layers of shear wall panels can also be provided. The oblique long holes of the two-layer shear wall panels are arranged crosswise, the main purpose of which is to limit the buckling of the plate strip in one direction under compression when the strip in one direction is under tension. According to the numerical simulation results, the inclination angle of the long hole is recommended to be 30° to 60°. The vertical load of the structure is transmitted to the special-shaped concrete-filled steel tube column by the honeycomb beam, and the horizontal load is borne by the double-layer steel plate shear wall with inclined seams. The vertical force transmission system of the frame shear wall structure system is separated from the horizontal force transmission system, and the force is clearly defined. .

As shown in Fig. 2, Fig. 3 and Fig. 4, the upright column comprises a central column, a corner column and a side column, the cross section of the central column is cross-shaped, the cross section of the corner column is L-shaped, and the cross section of the side column is T shape. Among them, the L-shaped column corresponds to the corner of a single room, the cross-shaped column corresponds to the middle corner, and the T-shaped column corresponds to the corner connecting the rooms on both sides.

The openings are circular, hexagonal or special-shaped holes, and the shape and size of the openings can be designed according to the actual pipeline layout.

The above-mentioned embodiment is only a description of the preferred implementation of the present utility model, and does not limit the scope of the present invention. Under the premise of not departing from the design spirit of the present utility model, those skilled in the art can make various deformations and improvements of the present utility model , should be expanded into the scope of protection defined in the claims of the present invention.

Claims (8)

1. A prefabricated steel structure frame system, comprising columns, steel beams and shear wall panels, characterized in that: the columns include pipe columns formed by welding peripheral steel plates, concrete filling layers and reinforcing ribs, and the inside of the pipe columns Filling with concrete to form a concrete filling layer, and reinforcing ribs are provided on the inner wall of the peripheral steel plate; The top of the column is connected with the two ends of the steel beam by friction type high-strength bolts. The steel beam is a steel beam with an H-shaped cross section, wherein the steel beam includes an upper flange, a lower flange and a web connecting the upper and lower flanges , the web is provided with openings, and the pipelines are arranged through the openings on the web; A shear wall panel is hingedly connected to the outside of the peripheral steel plate of the pipe column, and the shear wall panel is provided with oblique long holes. 2. The prefabricated steel structure frame system according to claim 1, characterized in that: the shear wall panels are steel plates, and the shear wall panels are provided with two layers, which are respectively inner shear wall panels and outer shear wall panels. For wall panels, the oblique long holes on the inner and outer shear wall panels have different inclination directions to form a cross arrangement, and the edges of the shear wall panels are hinged through the end plates welded to the peripheral steel plates and bolts. 3. The prefabricated steel structure frame system according to claim 2, characterized in that: the elongated holes are evenly arranged. 4. The prefabricated steel structure frame system according to claim 1, 2 or 3, characterized in that: the inclination angle of the elongated hole relative to the horizontal plane is 30° to 60°. 5. The prefabricated steel structure frame system according to claim 1, characterized in that: the reinforcing ribs on the inner wall of the peripheral steel plate are arranged obliquely and intersecting. 6. The prefabricated steel structure frame system according to claim 1, characterized in that: the uprights include central columns, corner columns and side columns, the cross-section of the central column is cross-shaped, and the cross-section of the corner columns is L-shaped , the cross-section of the side column is T-shaped. 7. The prefabricated steel structure frame system according to claim 1, characterized in that: the openings are circular, hexagonal or special-shaped holes. 8. The prefabricated steel structure frame system according to claim 1, characterized in that: the two ends of the steel girder are connected by friction type high-strength bolts and flat end plates or grooved end plates welded outside the peripheral steel plates.