CN116497982A - Truss constraint steel plate shear wall system with fireproof decorative plate - Google Patents

Abstract

The invention provides a truss constraint steel plate shear wall system with a fireproof decorative plate, which comprises: the T-shaped steel beams are respectively fixed with the upper end and the lower end of the steel plate with the flange, the steel bar trusses are arranged on the two sides of the steel plate with the flange at intervals, the clamping truss cushion blocks are fixed on the steel bar trusses through clamping grooves, the four fireproof decorative plates are fixed on the outer sides of steel members through screws, the clamping truss cushion blocks and corner connecting cushion blocks, the shear walls of the upper layer and the lower layer are spliced and connected in a concrete floor slab through the T-shaped steel beams and the rectangular connecting plates, or the shear walls are respectively connected with the upper flange bolts or the lower flange bolts of the steel frame beams through the T-shaped steel beams to form a whole. The shear wall system can improve the rigidity of the steel plate shear wall, prevent the steel plate shear wall from buckling failure prematurely, avoid the noise generated by the steel plate shear wall during normal use, reduce the dead weight, improve the earthquake resistance, improve the ductility and the fireproof performance, and realize a certain damping effect.

Description

A truss-confined steel plate shear wall system with fireproof decorative panels

technical field

The invention relates to the technical field of steel structure building components and structures, in particular to a truss-constrained steel plate shear wall system with a fireproof decorative plate.

Background technique

Steel plate shear walls are widely used in building structural engineering, and have the advantages of good seismic performance and fast construction speed. The existing buckling-constrained steel plate wall outer concrete splints have self-heaviness, many connectors, high steel content, and complex design and processing. shortcoming. In addition, other forms of steel plate shear walls generally have problems such as low redundancy of fire protection performance, short durability of fire retardant coatings, and easy falling off of fire retardant coatings during daily use.

In view of the above problems, it is necessary to invent a new type of truss-confined steel plate shear wall, which can not only reduce its own weight, but also ensure the seismic bearing capacity, improve ductility and fire resistance, realize industrial production, and reduce costs and construction costs.

Contents of the invention

In order to solve the problems existing in the existing steel plate shear walls, the present invention proposes a truss-constrained steel plate shear wall with a fireproof decorative plate and its connection method, which can not only reduce the structural weight, but also ensure the lateral bearing capacity, and also It can improve the ductility and fire performance, and the connection node structure is simple and reliable.

In order to solve the problems of the technologies described above, the technical solution provided by the application is:

A truss-constrained steel plate shear wall system with fireproof decorative panels, including: steel plates with flanges, reinforced trusses, fireproof decorative panels, card truss pads, screws, corner connection pads, T-shaped steel beams, concrete floors, Floor reinforcement, H-shaped steel frame beams and rectangular connecting plates;

The T-shaped steel beams are respectively fixedly connected to the upper and lower ends of the steel plate with flanges, the steel bar trusses are arranged at intervals on both sides of the steel plates with flanges, and the truss spacers are fixed to the steel bars through slots. On the truss, the four fireproof decorative panels are enclosed around the flanged steel plate, and the screws fix the front and rear two fireproof decorative panels to the outside of the truss pad, and the fireproof panels on the left and right ends are The decorative panels are fixed to the two front and rear fire-proof decorative panels through corner connection pads and screws, and the shear walls on the upper and lower floors are spliced and connected in the concrete floor through the T-shaped steel beams and the rectangular connecting panels. , or the T-shaped steel beams are integrally connected with the upper and lower flanges of the H-shaped steel frame beams pre-embedded in the concrete floor by bolts or welding.

Further, the steel bar truss is welded by diagonal web steel bars and top chord steel bars, and the diagonal web bar steel bars are connected to the flanged steel plates through welding.

Further, the card truss pad is fixed on the upper chord steel bar of the steel bar truss through the card slot.

Further, the steel bar trusses are arranged horizontally or vertically or one side is horizontally arranged and the other side is vertically arranged.

Further, the steel truss adopts multiple groups of trusses of different lengths parallel to the diagonal line to be evenly arranged on both sides of the steel plate with flanges, and the two sides are arranged in opposite directions to form a cross force.

Further, the fireproof decorative board adopts cement fiber board or calcium silicate board.

Further, the steel plate with flange is spliced by three rectangular steel plates, or H-shaped steel or I-beam with narrow flange is used, and the web plate is provided with rectangular, diamond-shaped, circular openings, and the material of the steel plate is ordinary low-carbon steel, low Alloy steel or low yield point steel.

Further, it also includes a first transverse stiffener, the first transverse stiffener is fixedly arranged between the flange plates of the T-shaped steel beams of the shear wall on the upper and lower floors, and the shear force on the upper and lower floors The web of the T-shaped steel beam of the wall extends into the concrete floor and is respectively welded and fixed to the rectangular connecting plate, and the rectangular connecting plate is arranged along the length direction of the web of the T-shaped steel beam. The floor reinforcement of the concrete floor is fixed to the first transverse stiffener by welding.

Further, it also includes a second transverse stiffener, the second transverse stiffener is fixedly arranged in the upper and lower flanges of the H-shaped steel frame beam, and the webs of the T-shaped steel beams of the shear walls on the upper and lower floors The plate is fixed to the flange of the H-shaped steel frame beam by bolts or welding, and the floor reinforcement of the concrete floor is fixed to the second transverse stiffener by welding.

Further, the left and right sides of the steel plate with flanges are connected to the steel column, or kept disengaged.

Compared with the prior art, a truss-constrained steel plate shear wall with a fireproof decorative plate proposed by the present invention has the following advantages:

(1) Reinforced trusses and steel plates are all profiles, and the market mostly supplies finished products, and there are many varieties and specifications, so there is no need for independent production, which can save processing time.

(2) The steel plate with flange and the steel truss are connected by welding, which can realize fully automatic production.

(3) The self-weight is light, no need to pour concrete, which can greatly reduce the self-weight of the structure.

(4) After the steel truss is combined with the steel plate, the out-of-plane rigidity is large, and it is not easy to deform during processing, transportation, construction and use, which is conducive to reducing the initial defects of the component.

(5) The axial stiffness of the steel truss is small, and the welding seam will not be damaged in advance during the stress process, and a certain damping effect can be achieved through the plastic deformation of the steel bar.

(6) The upper and lower steel plate walls can be directly spliced and connected, and can also be connected with steel frame beams respectively. The joint form is simple and the force transmission is direct.

(7) The buckling-constrained steel plate wall and the steel frame form a whole. The frame structure is responsible for bearing the axial force, while the steel plate wall mainly bears the shear force and bending moment, which can give full play to their respective advantages.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Figure 1 is a front view of a typical structural form of a truss-constrained steel plate shear wall with a fireproof decorative plate in the present application: inline arrangement;

Fig. 2 is the A-A cross section top view sectional view of Fig. 1 typical structure form;

Fig. 3 is the B-B cross-sectional side view sectional view of typical structural form of Fig. 1;

Fig. 4 is a truss restrained steel plate shear wall system with a fireproof decorative plate and a typical structural connection node profile of the upper and lower T-shaped steel beams in the floor slab;

Fig. 5 is a truss-constrained steel plate shear wall system with a fireproof decorative plate and its upper and lower floors T-shaped steel beams are connected by a typical structural form of steel frame beams.

Fig. 6 is a schematic diagram of the connection of the steel bar truss horizontally arranged on the steel plate of a truss restrained steel plate shear wall system with a fireproof decorative plate;

Fig. 7 is a connection schematic diagram of a steel truss vertically arranged on a steel plate in a truss-constrained steel plate shear wall system with a fireproof decorative plate;

Fig. 8 is a connection schematic diagram of a truss restrained steel plate shear wall system with a fireproof decorative plate in which the steel bar truss is arranged obliquely on the steel plate;

Fig. 9 is a schematic diagram of the connection of the fireproof decorative plate of the truss restrained steel plate shear wall system with the fireproof decorative plate fixed to the upper chord steel bar of the reinforced truss through the clamping truss pad;

Fig. 10 is a schematic diagram of the interconnection of the fireproof decorative panels of the truss restrained steel plate shear wall system with fireproof decorative panels through the corner connecting pads;

Fig. 11 is a schematic diagram of the connection between the flanged steel plate and the steel column of a truss-constrained steel plate shear wall system with a fireproof decorative plate in the present application.

In the picture:

1 steel plate with flange;

2 steel trusses;

3 Fireproof decorative panels;

4 card truss pads;

5 screws;

6 corner connecting pads;

7 T-shaped steel beams;

8 concrete floors;

9 floor reinforcement;

10 H-shaped steel frame beams;

11 first transverse stiffener;

12 rectangular connecting plates;

13 second transverse stiffeners;

14 steel columns.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in Figures 1 to 11, a truss-constrained steel plate shear wall system with a fireproof decorative plate of the present application includes: a steel plate with a flange 1, a steel truss 2, a fireproof decorative plate 3, and a truss pad 4, Screws 5, corner connection pads 6, T-shaped steel beams 7, concrete floor slabs 8, floor reinforcement bars 9, H-shaped steel frame beams 10 and rectangular connecting plates 12;

The T-shaped steel beam 7 is fixedly connected to the upper and lower ends of the flanged steel plate 1 respectively, the steel bar trusses 2 are arranged at intervals on both sides 1 of the flanged steel plate, and the clamping truss pads 4 pass through the slots fixed to the steel bar truss 2, the four fireproof decorative panels 3 are enclosed around the flanged steel plate 1, and the screws 5 fix the front and rear two fireproof decorative panels 3 to the card truss pad On the outside of the block 4, the fireproof decorative panels 3 on the left and right ends are fixed to the front and rear two fireproof decorative panels 3 through the corner connecting pads 6 and screws 5, and the shear walls on the upper and lower floors are fixed by the T-shaped steel The beam 7 and the rectangular connecting plate 12 are spliced and connected in the concrete floor 8, or the T-shaped steel beam 7 is respectively bolted to the upper and lower flanges of the H-shaped steel frame beam 10 pre-embedded in the concrete floor 8 Or welded connection to form a whole.

The flanged steel plate 1 and steel bar truss 2 of the present application mainly bear shear force and bending moment, and the steel bar truss 2 mainly increases the out-of-plane stiffness of the steel plate 1 to prevent premature buckling of the steel plate 1 from reducing the structural bearing capacity. In addition, since the shear walls do not need to be poured with concrete, the self-weight of the structure is reduced.

In the embodiment of the present application, the steel bar truss 2 is welded by diagonal-web steel bars and upper chord steel bars, and the diagonal-web steel bars are connected to the flanged steel plate 1 through welding.

In the embodiment of the present application, the card truss pad 4 is fixed on the upper chord steel bar of the steel bar truss 2 through a card slot.

In the embodiment of the present application, the steel bar trusses 2 are arranged horizontally or vertically or one side is horizontally arranged and the other side is vertically arranged.

In the embodiment of the present application, the steel trusses 2 can be evenly arranged on both sides of the steel plate with flanges 1 by using multiple groups of trusses of different lengths parallel to the diagonal, and the two sides are arranged in opposite directions to form a cross force .

In the embodiment of the present application, the fire-proof decorative board 3 is made of inorganic boards such as cement fiber board or calcium silicate board, which can meet the fire protection requirements of the shear wall, and does not participate in the stress of the main structure, and the decorative surface can be prefabricated indoors in advance.

In the embodiment of the present application, the steel plate with flange 1 is spliced by three rectangular steel plates, or H-shaped steel or I-shaped steel with narrow flange is used. Ordinary low carbon steel, low alloy steel or low yield point steel can be used.

In the embodiment of the present application, the first transverse stiffener 11 is also included, and the first transverse stiffener 11 is fixedly arranged between the flange plates of the T-shaped steel beam 7 of the shear wall on the upper and lower floors , the webs of the T-shaped steel beams 7 of the shear walls on the upper and lower floors extend into the floor 8 and are respectively welded and fixed with the rectangular connecting plates 12, and the rectangular connecting plates 12 are fixed along the T-shaped The length direction of the web of the steel beam 7 is arranged in a long direction, and the floor steel bars 9 of the concrete floor 8 are fixed to the transverse stiffeners 11 by welding.

In the embodiment of the present application, a second transverse stiffener 13 is also included, and the second transverse stiffener 13 is fixedly arranged in the upper and lower flanges of the H-shaped steel frame beam 10, and the shear walls of the upper and lower floors The web of the T-shaped steel beam 7 is bolted or welded to the flange of the H-shaped steel frame beam 10, and the floor reinforcement 9 of the concrete floor 8 is fixed to the transverse stiffener 11 by welding.

In the embodiment of the present application, the left and right sides of the steel plate with flange 1 can be connected to the steel column 13, or can be kept disconnected.

In the embodiment of the present application, the H-shaped steel frame beams can also be replaced with box-shaped and other types of frame sections.

In the embodiment of the present application, the spacer 6 may not be connected with the steel truss 2 .

In the embodiment of the present application, the T-shaped steel beam 7 may be a hot-rolled section steel, or a welded section may be used.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (10)

1. A truss-confined steel plate shear wall system with a fireproof decorative plate, characterized in that it includes: a steel plate with a flange (1), a steel truss (2), a fireproof decorative plate (3), and a truss pad (4 ), screws (5), corner connection pads (6), T-shaped steel beams (7), concrete floor slabs (8), floor reinforcement bars (9), H-shaped steel frame beams (10) and rectangular connection plates (12) ; The T-shaped steel beam (7) is fixedly connected to the upper and lower ends of the flanged steel plate (1), the steel bar trusses (2) are arranged at intervals on both sides of the flanged steel plate (1), and the The card truss pad (4) is fixed to the steel truss (2) through the card slot, the four fire-proof decorative panels (3) are enclosed around the flanged steel plate (1), and the screws (5 ) Fix the two front and rear fire-proof decorative panels (3) to the outside of the card truss pad (4), and the fire-proof decorative panels (3) on the left and right ends are connected to the pads (6) and screws ( 5) It is fixed with the two front and rear fireproof decorative panels (3), and the shear walls of the upper and lower floors are connected to the concrete floor (8) through the T-shaped steel beam (7) and the rectangular connecting plate (12). ), or the T-shaped steel beam (7) is respectively connected with the upper and lower flanges of the H-shaped steel frame beam (10) pre-embedded in the concrete floor (8) by bolts or welding to form a whole. 2. A truss-constrained steel plate shear wall system with fireproof decorative panels as claimed in claim 1, characterized in that, the steel bar truss (2) is welded by diagonal-web steel bars and upper chord steel bars, and the diagonal-web bar The steel bar is connected with the steel plate with flange (1) by welding. 3. A truss-constrained steel plate shear wall system with fireproof decorative panels as claimed in claim 1 or 2, characterized in that the truss block (4) is fixed to the upper chord reinforcement of the steel truss (2) through a slot superior. 4. A truss-confined steel plate shear wall system with fireproof decorative panels as claimed in claim 1 or 2, characterized in that the steel bar truss (2) is arranged horizontally or vertically or horizontally on one side, and the other One side is arranged vertically. 5. A truss-constrained steel plate shear wall system with fireproof decorative panels as claimed in claim 1 or 2, characterized in that the steel truss (2) adopts multiple sets of trusses with different lengths parallel to the diagonal The trusses are evenly arranged on both sides of the flanged steel plate (1), and the directions of the two sides are opposite, forming a cross force. 6. A truss-confined steel plate shear wall system with a fireproof decorative board according to claim 1 or 2, characterized in that the fireproof decorative board (3) is made of cement fiber board or calcium silicate board. 7. A truss-constrained steel plate shear wall system with a fireproof decorative plate as claimed in claim 1 or 2, characterized in that the steel plate with flange (1) is spliced by three rectangular steel plates, or Narrow flange H-shaped steel or I-shaped steel, with rectangular, rhombus, and circular holes in the web, and the steel plate is made of ordinary low-carbon steel, low-alloy steel or low-yield point steel. 8. A truss-confined steel plate shear wall system with fireproof decorative panels as claimed in claim 1 or 2, characterized in that it also includes a first transverse stiffener (11), and the first transverse stiffener (11 ) fixed between the flange plates of the T-shaped steel beams (7) of the shear walls on the upper and lower floors, and the webs of the T-shaped steel beams (7) of the shear walls on the upper and lower floors Extending into the concrete floor (8) and respectively welding and fixing with the rectangular connecting plate (12), the rectangular connecting plate (12) is arranged along the length direction of the web of the T-shaped steel beam (7), The floor reinforcement (9) of the concrete floor (8) is fixed to the first transverse stiffener (11) by welding. 9. A truss-confined steel plate shear wall system with fireproof decorative panels as claimed in claim 1 or 2, characterized in that it also includes a second transverse stiffener (13), and the second transverse stiffener (13 ) fixedly arranged in the upper and lower flanges of the H-shaped steel frame beam (10), the web of the T-shaped steel beam (7) of the shear wall on the upper and lower floors and the H-shaped steel frame beam (10) The flange is fixed by bolts or welding, and the floor reinforcement (9) of the concrete floor (8) is fixed with the second transverse stiffener (13) by welding. 10. A truss-constrained steel plate shear wall system with a fireproof decorative plate as claimed in claim 1 or 2, characterized in that the left and right sides of the flanged steel plate (1) are connected with steel columns (14), or stay disengaged.