CN102979177B - Industrialized assembled multi-story high-rise steel structure eccentrically-braced system - Google Patents

Abstract

The invention relates to an eccentric support system of an industrially assembled multi-high-rise steel structure, which belongs to the construction field. The invention includes a steel structure main frame, a support member and a column, and the steel structure main frame includes a foundation frame and a floor slab. The wide beam, the narrow beam and the floor slab are integrated in the factory, and the wide beam and the narrow beam are all welded by channel steel in the factory. The pipeline passes between the web channels of the wide and narrow beams to form the A, B and C plates. High-strength bolts and partial welding are used at the connection between the main board and the column seat, and between the wide beam and the narrow beam (only in the factory). The column base and the column are connected through flanges with high-strength bolts. The invention has the advantages of fast construction speed, high structural bearing capacity, good lateral displacement resistance, no pollution, etc., can give full play to the strength of the material, effectively resist horizontal loads, reduce the displacement between layers of the structure, and reduce the pollution caused by welding to the environment , improve the construction speed and save costs.

Description

An industrially assembled multi-high-rise steel structure eccentric support system

technical field

The invention relates to a novel structure system, in particular to an industrially assembled steel structure eccentric support system applied in the construction field.

Background technique

The construction of ordinary steel structures uses a lot of welding on site, which not only affects the construction speed but also makes it difficult to control the construction quality. In recent years, there have been numerous engineering quality problems caused by the construction quality of steel structures, and on-site welding is one of the most important Factors, on-site welding quality is not easy to control, and it causes great pollution to the environment.

The traditional reinforced concrete structure requires on-site binding of steel bars and pouring of concrete, which requires a lot of labor and maintenance time, and the project cost is greatly increased. And a large amount of construction waste is generated when the building is demolished.

In recent years, domestic scholars' research on prefabricated steel structures is limited to multi-layers, and the construction speed is only slightly reduced, and the rapid installation of steel structures has not really been realized, reflecting the advantages of steel structures.

Contents of the invention

The purpose of the present invention is to overcome the above-mentioned defects of existing projects, and provide a structural system for rapid construction of high-rise steel structures. Advantages of steel structure.

In order to achieve the above object, the present invention adopts following technical scheme:

An industrially assembled eccentric support system for multiple high-rise steel structures, including a main frame 1, a column system composed of columns 8 and column cover plates, and a support member 2; the main frame includes: a foundation frame and a floor 15;

Described main frame 1 is made of the basic unit that A, B, C three kinds of basic frames are formed, and wherein A basic frame is the basic frame of edge position, and B, C two basic plates are the frame of middle position, and B and C base frames are connected alternately;

Among the three types of foundation panels, the beams on the side not adjacent to other foundation panels are all wide beams 3; the beams on the side adjacent to other foundation panels are all narrow beams 4; the beam width of the narrow beams is the width of the wide beams The width of the wide beam is less than or equal to the width of the flange of the column seat; the structure of the wide beam and the narrow beam is the same, and they are all truss beams; the upper and lower chords and webs of the truss beams are all channel steel, and the webs and The chords form an angle of 30°-60°; at least three connecting channel steels 10 with bolt holes are arranged between the upper and lower chords of each truss beam, and there is a rectangular end sealing plate with bolt holes at both ends of the truss beam; The upper and lower chords, webs, connecting channel steel and end sealing plates of the truss beams are all welded;

The two beams perpendicular to each other in the three types of foundation panels of A, B, and C are connected by welding with two stiffening plates 12 along the beam height; the adjacent beams are connected by bolts at the same position of the two beams; In the foundation plate frame of seat 7, the column seat is connected with the adjacent beam by bolts;

A basic frame is the outer basic frame of the main frame 1, which is a rectangular basic frame composed of wide beams 3 and narrow beams 4. There are two narrow beams 4 connected side by side in the middle of the A frame, and the two narrow beams The beams use bolts to connect the connecting channel steels at the same position of the two beams; the columns 8 are arranged on the outer long side of the foundation panel A; no columns are arranged on the long sides adjacent to other foundation panels;

The B foundation slab and the C foundation slab are two types of rectangular foundation slabs in the middle; among them, the narrow beam side adjacent to the B foundation slab and the A foundation slab does not arrange columns 8; the adjacent to the C foundation slab Columns 8 are arranged on the side of the narrow beam to form nodes, in which the middle node is node 6, and the nodes at both ends are node 5; node 6 is T-shaped. Since the flange width of the column base is greater than or equal to twice the width of the narrow beam, the narrow After the beam is aligned with the center line of the flange of the column base, the column base protrudes and connects to both sides of the column base, and the long side composed of narrow beams is half the width of the column base; the node 5 is L-shaped, and the column base and the mutual A vertical wide beam and a narrow beam are bolted together. The wide beam is aligned with one of the two centerlines perpendicular to each other in the column seat flange; the narrow beam is aligned with the other of the two centerlines. The beam width of the beam is less than or equal to half of the flange width of the column base, so the column base will also protrude from the long side composed of narrow beams by half the width of the column base; that is, the column base at node 5 and node 6 of the B foundation plate frame Protrude half of the column base of the connected narrow beams to form a bulge;

There are no columns arranged on the two long sides adjacent to the foundation panel C and the foundation panel B and the foundation panel A. The node of the long side adjacent to the foundation panel C and the B foundation panel is the node 8 in the middle position. The end is node 7; node 8 is composed of four narrow beams, two of which are collinear; the other two narrow beams are located in the middle of the C foundation slab, connected side by side and perpendicular to the collinear narrow beams; The non-adjacent long sides of the beams are vertically aligned; node 7 is composed of a narrow beam and a wide beam perpendicular to each other; the inner long sides of the narrow beam and the wide beam are vertically aligned; that is, the nodes 8 and 7 of the C foundation plate form a concave Groove, so that the groove of node 8 coincides with the protrusion of node 5 of the B foundation plate frame, and the groove of node 7 coincides with the protrusion of node 6 of the B foundation plate frame;

The column base 7 is a column pier with upper and lower column base flanges, surrounded by column base connectors 7-1 with bolt holes; each component is connected together by welding; the column 8 and the column cover are connected together by welding; Column cover plate, column seat flange and beam are connected together with bolts;

The floor slab 15 is poured on the foundation slabs of A, B and C, forming an integral body with the foundation slabs;

The support member 2 is realized in the form of herringbone eccentric support or diagonal eccentric support.

The main panel frame of the steel structure includes a foundation panel frame and a floor slab. The wide beam, the narrow beam and the floor slab are integrated in the factory, and the wide beam and the narrow beam are all welded by channel steel in the factory. The pipeline passes between the web channel steel of the wide beam and the narrow beam, thereby forming the A foundation grill, the B foundation grill and the C foundation grill. The bolted connection and partial welding at the connection between the base frame plate and the column seat, the connection between the wide beam and the narrow beam is limited to the factory. The column seat and the column are connected by bolts through flanges.

The ear plate is connected with the main board through bolts. When a horizontal force acts on the structure, the horizontal force component of the lateral force-resistant steel plate reduces or even offsets the horizontal force acting on the structure, so that the interstory displacement of the structure is a small value, which meets the requirements of the code.

Beneficial effect

The invention adopts a high-rise steel structure system that can realize rapid assembly and effectively resist horizontal lateral displacement during the construction stage. This structural form can not only effectively realize the industrialization of the processing of steel structural components, but also greatly increase the construction speed and greatly reduce the amount of steel used.

Through engineering practice and 1:10 shaking table experiment, it is found that the construction speed of the new structural system is 500% higher than that of the ordinary structural system, and the steel consumption is reduced by 50%, and the "no water, no fire, no dust" on the construction site is realized. ", reducing the safety hazards of on-site construction and reducing environmental pollution.

Description of drawings

Fig. 1 is the planar layout of the assembled main frame of the structure of the present invention

Fig. 2 Combination diagram of structural beam and slab of the present invention

Fig. 3 Structural frame support of the present invention Fig. 1

Fig. 4 Structural frame support Fig. 2 of the present invention

Fig. 5 board frame diagram of structure A of the present invention

Fig. 6 board frame diagram of structure B of the present invention

Fig. 7 is the raised figure of node 6 of structure B of the present invention.

Fig. 8 raised figure of structure B panel frame node 5 of the present invention

Figure 9 structure C board frame diagram of the present invention

Fig. 10 is a diagram of the 8 grooves of the structural C plate frame node of the present invention

Fig. 11 Groove diagram of node 7 of structure C of the present invention

Fig. 12 The structure node 1 diagram of the present invention

Fig. 13 Detailed diagram of structural node 1 of the present invention

Figure 14 Invention Structure Node 2 Diagram

Fig. 15 Detailed diagram of structure node 2 of the present invention

Fig. 16 The structure node 3 diagram of the present invention

Fig. 17 Detailed diagram of structure node 3 of the present invention

Fig. 18 The structure node 4 diagram of the present invention

Fig. 19 detailed diagram of structure node 4 of the present invention

Fig. 20 is the structure node 5 diagram of the present invention

Fig. 21 Detailed diagram of structure node 5 of the present invention

Fig. 22 The structure node 6 diagram of the present invention

Fig. 23 Detailed diagram of structural node 6 of the present invention

Fig. 24 The structure node 7 diagram of the present invention

Fig. 25 Detailed diagram of the structure node 7 of the present invention

Fig. 26 The structure node 8 diagram of the present invention

Fig. 27 Detailed diagram of structure node 8 of the present invention

Fig. 28 is the structural column seat diagram of the present invention

Figure 29 is a detailed view of the structural column seat of the present invention

Fig. 30 structural profiled steel plate diagram of the present invention

Fig. 31 is the detailed diagram of the connection node between the structural prestressed member and the frame wide beam of the present invention

Fig. 32 Schematic diagram of narrow beam connection of the structure of the present invention

Among them, 1-main frame; 2-support member; 3-wide beam; 4-narrow beam

5-profiled steel plate; 6-concrete; 7-column base; 7-1: column base connector; 7-2: column pier; 7-3: column base flange; 8-column; 9-1: single connection Ear plate; 9-2: double connection ear plate; 10-connecting channel steel; 11-1 column cover plate I; 11-2 cover plate II; 11-3 column cover plate III; 11-4 cover plate IV; 11- 5-column cover Ⅴ; 12-stiffening plate; 13-end; 14-section sealing plate; 15-floor.

Detailed ways

The implementation of the structural system will be described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 10, the present invention is an industrially assembled multi-high-rise steel structure eccentric support system, including a steel structure main frame, support members, and a column system, and is characterized in that: the steel structure main frame includes Foundation frame, column system. Wide beam 3, narrow beam 4 and column base 7 are assembled into foundation plate frame in factory, and floor slab is example with pressed steel plate concrete here, and floor slab can also be forms such as reinforced concrete floor slab. The support member is illustrated here in a general form. Place the profiled steel plate 5 on the wide beam 3 and the narrow beam 4, connect it with studs, pour concrete 6 on the profiled steel plate 5, use the gaps between the webs of the wide beam 3 and narrow beam 4, place pipelines, etc., and finally form The foundation panels A, B and C are connected by bolts and welded to form the main panel as shown in Figure 1. The floor slabs 15 are poured on the foundation panels of A, B and C, forming an integral body with the foundation panels. The column 8 is connected with the column base 7 by bolts to form an integral frame, and after the lug plate 9 is connected with the main frame, the supporting member 2 is connected with the ear plate 9 of the integral frame through the end 13 to form the whole structural system.

Fig. 11-Fig. 26 show the structural form of the structural nodes, and the connection method is as follows: the column 8 and the column cover plate are welded in the factory, and the wide beam 3 and the narrow beam 4 are connected together with two stiffening plates 12 along the beam height by welding. The base plate frame is finally connected with the column base 7, the column cover plate and the base plate frame with bolts to form a node.

Fig. 27-Fig. 28 is the structural diagram of the column base of this structure. The column base 7 is a column pier with column base flanges up and down, surrounded by column base connectors 7-1 with bolt holes. The parts are joined together by welding. The column 8 and the column cover are connected together by welding. Connect the column cover plate, column base flange and beam together with bolts.

Fig. 30-Fig. 31 are structural support members, wide beams and narrow beams. Wide beams and narrow beams have the same structure, both are truss beams. Among them, the upper and lower chords and webs of the truss beams are all channel steel, and the webs and chords form an angle of 30°-60°. At least three connecting channel steels 10 with bolt holes are arranged between the upper and lower chords of each truss beam, and a rectangular end sealing plate 14 with bolt holes is provided at both ends of the truss beam. The upper and lower chords, webs, connecting channel steel and end sealing plates of the truss beams are all welded

The above is a typical embodiment of the present invention, and the practice of the present invention is not limited thereto.

Claims (1)

1. An industrially assembled eccentric support system with multiple and high-rise steel structures, including a main panel frame (1), a column system composed of columns (8) and column cover plates, and a support member (2); the main panel frame includes: a foundation Panel frames and floor slabs (15); The main frame (1) is composed of basic units consisting of three basic frames A, B, and C, wherein the basic frame A is the basic frame at the edge, and the two basic frames B and C are the plates at the middle position. Frame, and B, C base frame alternately connected; Among the three types of foundation panels, the beams on the side not adjacent to other foundation panels are all wide beams (3); the beams on the side adjacent to other foundation panels are all narrow beams (4); the beam width of the narrow beams is Half of the beam width of the wide beam, the beam width of the wide beam is less than or equal to the width of the flange of the column base; the structure of the wide beam and the narrow beam is the same, and they are both truss beams; the upper and lower chords and webs of the truss beams are all channel steel , the web and the chord form an angle of 30°-60°; at least three connecting channel steels (10) with bolt holes are arranged between the upper and lower chords of each truss girder, and there is a piece of connecting channel steel (10) with bolt holes at both ends of the truss girder Rectangular end seal plate; the upper and lower chords, web members, connecting channel steel and end seal plate of the truss beam are all welded; The two beams perpendicular to each other in the three kinds of foundation plates of A, B, and C are connected by welding along the beam height with two stiffening plates (12); the adjacent beams are connected by bolts at the same position of the two beams; In the foundation plate frame with column base (7), the column base is connected with adjacent beams by bolts; The A basic frame is the outer basic frame of the main frame (1), which is a rectangular basic frame composed of wide beams (3) and narrow beams (4). Beams (4), and the two narrow beams use bolts to connect the connecting channel steel at the same position of the two beams together; the outer long side of the A foundation panel is arranged with columns (8); the long sides adjacent to other foundation panels No pillars are arranged on one side; The B foundation slab and the C foundation slab are two types of rectangular foundation slabs in the middle; wherein the narrow beam side adjacent to the B foundation slab and the A foundation slab does not arrange columns (8); Columns (8) are arranged on adjacent narrow beams to form nodes, wherein the middle node is node 6, and the nodes at both ends are node 5; node 6 is T-shaped, because the flange width of the column base is greater than or equal to twice the beam width of the narrow beam , so after aligning the narrow beam with the center line of the flange of the column base, the column base protrudes and connects to both sides of the column base, and the long side composed of narrow beams is half the width of the column base; the node 5 is L-shaped, where The column base is bolted together with a wide beam and a narrow beam perpendicular to each other, the wide beam is aligned with one of the two perpendicular centerlines in the column base flange; the narrow beam is aligned with the other of the two centerlines Alignment, since the beam width of the narrow beam is less than or equal to half of the flange width of the column base, the column base will also protrude from the long side composed of narrow beams by half the width of the column base; that is, node 5 and node 6 of the B foundation plate frame The column seat at the place protrudes half of the column seat of the connected narrow beam, forming a protrusion; There are no columns arranged on the two long sides adjacent to the foundation panel C and the foundation panel B and the foundation panel A. The node of the long side adjacent to the foundation panel C and the B foundation panel is the node 8 in the middle position. The end is node 7; node 8 is composed of four narrow beams, two of which are collinear; the other two narrow beams are located in the middle of the C foundation slab, connected side by side and perpendicular to the collinear narrow beams; The non-adjacent long sides of the beams are vertically aligned; node 7 is composed of a narrow beam and a wide beam perpendicular to each other; the inner long sides of the narrow beam and the wide beam are vertically aligned; that is, the nodes 8 and 7 of the C foundation plate form a concave Groove, so that the groove of node 8 coincides with the protrusion of node 5 of the B foundation plate frame, and the groove of node 7 coincides with the protrusion of node 6 of the B foundation plate frame; The column base (7) is a column pier with upper and lower column base flanges, surrounded by column base connectors (7-1) with bolt holes; all parts are connected together by welding; the column (8) and the column cover plate pass through Welding together; connecting the column cover plate, column base flange and beam with bolts; The floor slabs (15) are poured on the foundation slabs of A, B and C, forming a whole with the foundation slabs; The support member (2) is realized in the form of herringbone eccentric support or diagonal eccentric support.