CN115387511A - A Quickly Assembled Multi-cavity Steel Tube Concrete Shear Wall - Google Patents

Abstract

The invention discloses a quickly assembled multi-cavity concrete filled steel tube shear wall which comprises a linear, L-shaped, I-shaped, C-shaped, T-shaped or Z-shaped wall body formed by end pieces, cavity side plates and concrete, wherein the cavity side plates are arranged in pairs in opposite mode and form a strip-shaped large cavity together with the end pieces; a plurality of fixed symmetrical cavity side plates and vertical connecting pieces for quickly assembling an upper layer and a lower layer are arranged between the cavity side plates at intervals, a plurality of tie pieces are arranged on the cavity side plates between the vertical connecting pieces, the strip-shaped large cavity is divided into a plurality of rectangular small cavities by the vertical connecting pieces, and concrete is filled in the rectangular small cavities; the vertical connecting piece is formed by axially and symmetrically arranging two C-shaped steels, back-to-back openings of the two C-shaped steels face the outer side of the wall body, the two C-shaped steels are connected into a whole, and a top connecting block and a bottom connecting block are respectively arranged inside the upper end and the lower end of each C-shaped steel; through the top connecting block and the end connecting block of vertical connecting piece, can realize that the fastener of multicavity steel pipe-concrete shear force wall is swiftly assembled.

Description

A Quickly Assembled Multi-cavity Steel Tube Concrete Shear Wall

technical field

The invention relates to a steel pipe concrete shear wall, in particular to a quick-assemble multi-cavity steel pipe concrete shear wall suitable for the technical field of wood engineering.

Background technique

The multi-cavity concrete-filled steel tube shear wall is more and more popular in the engineering field because of its good mechanical properties and advantages of formwork-free construction. The traditional multi-cavity steel pipes are shown in Figure 1. Square steel pipes are used as the end plates, and the cavity side plates and inner steel plates are used as the walls. The biggest problems restricting the wide application of multi-cavity steel tube concrete shear walls are: When the cavity steel pipe is connected on site, the square steel tube, the cavity side plate and the steel plate in the cavity of the traditional multi-cavity steel tube are all welded, and the welding of the square steel tube and the steel plate in the cavity is difficult due to the lack of welding space. At present, the welding of the square steel pipe and the steel plate in the cavity needs to reserve welding holes on the side plate of the cavity. After the welding of the square steel pipe and the steel plate in the cavity is completed, the welding holes are reserved for repair welding. Due to the welding in the welding hole, the welding space is small, the welding efficiency is low, and the welding quality is difficult to guarantee. 2) It is difficult for the steel plate in the floor to penetrate through the multi-cavity steel pipe, and it is difficult to coordinate the force between the floor and the multi-cavity steel pipe. At present, the method for floor steel bars to pass through traditional multi-cavity steel pipes is mainly to open steel bar through-holes on the multi-cavity steel pipes. The opening of steel bar through-holes in the cavity side plates of multi-cavity steel pipes will weaken its bearing capacity. Adding welded reinforcing plates to the steel bar through-holes It will increase the welding workload and steel consumption, which will affect the construction progress. Therefore, in order to promote the application of multi-cavity concrete filled steel tubes, it is urgent to solve technical problems such as the welding of square steel tubes and steel plates in the cavity of traditional multi-cavity steel tubes, and the connection of multi-cavity steel tubes and steel bars in the plates.

Contents of the invention

Technical problem: The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a quick assembly of multi-cavity concrete-filled steel tube shear walls, and to change the multi-cavity steel tube concrete shear walls through fast connection devices based on fastener connections. The cavity steel plate and side plate function.

Technical solution: A fast-assembled multi-cavity concrete-filled steel pipe shear wall of the present invention includes an in-line, L-shaped, I-shaped, C-shaped, T-shaped or Z-shaped wall composed of end pieces, cavity side plates and concrete , the cavity side plates are arranged opposite to each other, and form a strip-shaped large cavity with the end piece 1; a plurality of fixed and symmetrical cavity side plates are arranged at intervals between the cavity side plates and are used for the upper and lower multi-cavity concrete-filled steel pipe shear walls. Assembled vertical connectors, the cavity side plates between the vertical connectors are provided with a plurality of tie members, the vertical connectors divide the strip-shaped large cavity into several small rectangular cavities, and the concrete filling In the small rectangular cavity; the vertical connecting piece is arranged symmetrically by two C-shaped steels, with back-to-back openings facing the outside of the wall. There are a top connection block and a bottom connection block; the top connection block and the bottom connection block are respectively provided with bolt holes on the same axis, and the number of bolt holes is set according to the wall width and the density of the arrangement of vertical connectors .

The end piece is one or more of flat steel plate, H-shaped steel, channel steel, T-shaped steel and rectangular steel pipe.

The cavity side plate is one of corrugated steel plate, flat steel plate or corrugated steel plate.

The corrugation direction of the corrugated steel plate is arranged horizontally or vertically, and the waveform of the corrugated steel plate is one of sine wave, rectangular wave and trapezoidal wave.

The concrete is one of plain concrete, reinforced concrete, steel concrete and fiber concrete.

One or more steel webs are arranged between the two connected C-shaped steels.

The tie member is one or more of pegs, tie steel plates, tie bars or tie bolts.

The C-shaped steel is one or more of cold-formed formed steel, hot-rolled formed steel, welded plate steel or partially open rectangular steel pipe.

The opening of the C-shaped steel is provided with a sealing plate to improve stability.

The convex angle at the wall corner of the L-shaped, I-shaped, C-shaped, T-shaped or Z-shaped wall body, and the cavity side plate connected with the C-shaped steel along the opening direction of the C-shaped steel are flat steel plates.

Beneficial effects: the present invention changes the functions of steel plates and side plates in the cavity of the multi-cavity concrete-filled steel tube shear wall through the vertical connectors and anchors, and realizes the rapid assembly of the multi-cavity concrete-filled steel tube shear wall. Compared with the prior art Has the following advantages:

1. The multi-cavity steel pipe concrete shear wall of the present invention can realize the quick assembly of the upper and lower multi-cavity steel pipe shear walls through the fasteners at the vertical connectors without on-site welding, which effectively solves the problem of the steel plate in the traditional multi-cavity steel pipe cavity Solving the problem of difficult welding greatly improves the construction efficiency and reduces the construction cost.

2. The force transmission between the upper and lower multi-cavity steel pipes of the present invention is realized through several scattered vertical connectors, and the cavity side plates and anchors no longer bear the vertical tension, and their main functions are changed to: on the one hand, they act as pouring concrete On the other hand, the concrete in the cavity is restrained; the opening of the side plate of the cavity has little effect on the force of the multi-cavity steel pipe, and no reinforcement is required, which facilitates the opening connection of the multi-cavity steel pipe and the floor steel bar, and solves the problem of multi-cavity The problem of running through the steel bars in the steel pipe.

3. The outward opening feature of the vertical connector of the present invention facilitates the construction of the connecting bolts on the one hand, and facilitates the concealment of the supporting pipelines of the multi-cavity steel pipe on the other hand, which is beneficial to the aesthetics of the wall and pipeline construction.

Description of drawings

Fig. 1 is a schematic diagram of a three-dimensional structure of a traditional multi-cavity steel pipe.

Fig. 2 is a three-dimensional schematic diagram of the "one"-shaped multi-cavity concrete filled steel pipe shear wall in Embodiment 1 of the present invention.

Fig. 3 is a three-dimensional schematic diagram of the vertical connector in Embodiment 1 of the present invention.

Fig. 4 is a three-dimensional schematic diagram of the assembly method of the "one"-shaped upper and lower multi-cavity steel pipes in Embodiment 1 of the present invention.

Fig. 5 is a three-dimensional schematic diagram of an "L"-shaped multi-cavity concrete filled steel pipe shear wall in Example 2 of the present invention.

Fig. 6 is a three-dimensional schematic diagram of a "T"-shaped multi-cavity concrete-filled steel tube shear wall in Embodiment 3 of the present invention.

Fig. 7 is a three-dimensional schematic diagram of a "one"-shaped multi-cavity flat concrete-filled steel tube shear wall in Embodiment 4 of the present invention.

In the figure: 1-end piece; 2-cavity side plate; 3-cavity steel plate; 4-vertical connector; 5-concrete; 6-fastener; 7-tie piece; 8-sealing plate; 41- C-shaped steel; 42-bottom connection block; 43-top connection block; 44-bolt hole; 45-steel web.

Detailed ways

The present invention will be further described below in conjunction with the embodiment in the accompanying drawings:

The quick assembled multi-cavity concrete-filled steel tube shear wall of the present invention comprises an in-line, L-shaped, I-shaped, C-shaped, T-shaped or Z-shaped wall composed of end pieces 1, cavity side plates 2 and concrete 5, so that The end piece 1 mentioned above is one or more of flat steel plate, H-shaped steel, channel steel, T-shaped steel and rectangular steel pipe. The cavity side plates 2 are arranged opposite to each other, and form a strip-shaped large cavity with the end piece 1; a plurality of fixed symmetrical cavity side plates are arranged at intervals between the cavity side plates 2 and are used for the upper and lower multi-cavity steel pipe concrete shear walls The vertical connector 4 for quick assembly, the cavity side plate 2 is a kind of corrugated steel plate, flat steel plate or corrugated steel plate, the corrugated steel plate is arranged horizontally or vertically, and the waveform of the corrugated steel plate is a sine wave , a rectangular wave and a trapezoidal wave; the cavity side plate 2 between the vertical connectors 4 is provided with a plurality of tie pieces 7, and the tie pieces 7 are pegs, tie steel plates, tie One or more of tie bars or pull bolts. The vertical connector 4 divides the large strip-shaped cavity into several small rectangular cavities, and the concrete 5 is filled in the small rectangular cavities, and the concrete 5 is one of plain concrete, reinforced concrete, steel concrete and fiber concrete. . The vertical connector 4 is arranged axially symmetrically by two C-shaped steels 41, with back-to-back openings facing the outside of the wall, the two C-shaped steels 41 are connected as one, and one or more Block steel web 45; the C-shaped steel 41 is one or more of cold-formed formed steel, hot-rolled formed steel, plate welded steel or rectangular steel pipe with partial openings; the opening of the C-shaped steel 41 is provided with a The sealing plate 8. The upper and lower ends of each C-shaped steel 41 are respectively provided with a top connection block 43 and a bottom connection block 42; the top connection block 43 and the bottom connection block 42 are respectively provided with bolt holes 44 on the same axis. The number of is set according to the wall width and the density of the arrangement of vertical connectors. The convex angle at the wall corner of the L-shaped, I-shaped, C-shaped, T-shaped or Z-shaped wall body, and the cavity side plate 2 connected with the C-shaped steel 41 along the opening direction of the C-shaped steel 41 are flat steel plates.

Embodiment 1,

As shown in Figure 2, a quick-assemble multi-cavity concrete-filled steel pipe shear wall, the shear wall includes end pieces 1, cavity side plates 2, vertical connectors 4 and concrete 5; the shear wall is the word "一" Type, which includes two end plates 1, the end piece 1 is a flat steel plate, located at the end of the shear wall section; four vertical connectors 4 are arranged between the end pieces 1; the The end piece 1 and the adjacent vertical connector 4 and the adjacent vertical connector 4 are formed by welding several pairs of chamber side plates 2 to form a multi-cavity steel pipe; the chamber side plate 2 is provided with a tie 7, the tie 7 is a peg. Concrete 5 is filled in the multi-cavity steel pipe; the concrete 5 is plain concrete; the cavity side plate 2 is a corrugated steel plate, and the corrugated steel plate is arranged horizontally in the corrugated direction; the waveform of the corrugated steel plate is a trapezoidal wave; The vertical connecting piece 4 is shown in FIG. 3 , which includes a C-shaped steel 41 , a bottom connecting block 42 and a top connecting block 43 . The C-shaped steel 41 is a vertical member whose cross section includes two C-shaped openings facing oppositely and towards the outside of the shear wall; the bottom connecting block 42 and the top connecting block 43 are respectively welded to the two ends of the C-shaped steel 41; Each of the bottom connection block 42 and the top connection block 43 includes two bolt holes 44 ; the bolt holes 44 are located inside the opening of the C-shaped steel 41 . The C-shaped steel 41 of the vertical connector 4 includes a C-shaped steel 41 and a steel web 45, and the C-shaped steel 41 is a plate welded steel; the angle between the adjacent two sides of the C-shaped opening of the C-shaped steel 41 is 90 degrees; the opening of the C-shaped steel 41 is not partially provided with a sealing plate 8 .

As shown in Figure 4, the horizontal seam connection of the upper and lower layers of multi-cavity steel pipes, the bolt hole 44 of the bottom plate of the upper multi-cavity steel pipe of the two multi-cavity steel pipes to be assembled and the bottom plate of the multi-cavity steel pipe The bolt holes 44 of the top plate of the vertical connector 4 are aligned, and then the fasteners 6 are inserted into the bolt holes 44 to connect and fix; it can also be connected and fixed by welding.

Embodiment 2,

As shown in Fig. 5, a kind of rapid assembly multi-cavity concrete-filled steel pipe shear wall, the shear wall includes end pieces 1, cavity side plates 2, vertical connectors 4 and concrete 5; the shear wall is L-shaped, and its Contains two end pieces 1, the end pieces 1 are flat steel plates, located at the end of the shear wall section; four vertical connecting pieces 4 are arranged between the end pieces 1, and two corners are arranged a plurality of vertical connectors 4; the end member 1 and the adjacent vertical connectors 4 and the adjacent vertical connectors 4 are formed by welding several pairs of cavity side plates 2 to form a multi-cavity steel pipe; The multi-cavity steel pipe is filled with concrete 5; the concrete 5 is plain concrete; the cavity side plate 2 is a corrugated steel plate, and the corrugated steel plate is arranged horizontally; the waveform of the corrugated steel plate is a trapezoidal wave; the shear force The outer convex angle at the corner of the wall and the cavity side plate 2 connected with the C-shaped steel along the C-shaped opening direction of the C-shaped steel of the vertical connector 4 are flat steel plates; the vertical connector 4 is as follows As shown in FIG. 3 , it includes a C-shaped steel 41 , a bottom connection block 42 and a top connection block 43 . The C-shaped steel 41 is a vertical member whose section includes two C-shaped openings opposite to the outside of the shear wall; the bottom connecting block 42 and the top connecting block 43 are respectively welded to the two ends of the C-shaped steel; The bottom connection block 42 and the top connection block 43 each include a bolt hole 44; the bolt hole 44 is located inside the opening of the C-shaped steel. The profiled steel part 41 of the vertical connector 4 comprises a C-shaped steel 41 and a steel web 45, and the C-shaped steel 41 is cold-formed steel; the angle between adjacent two sides of the C-shaped opening of the C-shaped steel 41 is 90 degrees; a plurality of tie parts 7 are arranged at intervals between the cavity side plates 2, and the tie parts 7 are tie steel plates. The upper and lower multi-cavity steel pipes are assembled with reference to Fig. 4 for implementation.

Embodiment 3,

As shown in Figure 6, a quick-assemble multi-cavity concrete-filled steel pipe shear wall, the shear wall includes an end piece 1, a cavity side plate 2, a vertical connector 4 and concrete 5; the shear wall is T-shaped, and its Contains three end pieces 1, the end pieces 1 are flat steel plates, located at the end of the shear wall section; five vertical connecting pieces 4 are arranged between the end pieces 1, and two corners are arranged a plurality of vertical connectors 4; the end member 1 and the adjacent vertical connectors 4 and the adjacent vertical connectors 4 are formed by welding several pairs of cavity side plates 2 to form a multi-cavity steel pipe; The multi-cavity steel pipe is filled with concrete 5; the concrete 5 is plain concrete; the cavity side plate 2 is a corrugated steel plate, and the corrugated steel plate is arranged horizontally; the waveform of the corrugated steel plate is a trapezoidal wave; the shear force The cavity side plate 2 connected to the steel section 41 along the C-shaped opening direction of the C-shaped steel 41 of the vertical connector 4 at the corner of the wall is a flat steel plate; the vertical connector 4 is shown in Figure 3 , which includes a C-shaped steel 41 , a bottom connection block 42 and a top connection block 43 . The C-shaped steel 41 is a vertical member whose cross section includes two C-shaped openings facing oppositely and towards the outside of the shear wall; the bottom connecting block 42 and the top connecting block 43 are respectively welded to the two ends of the C-shaped steel 41; Each of the bottom connection block 42 and the top connection block 43 includes a bolt hole 44 ; the bolt hole 44 is located inside the opening of the C-shaped steel 41 . The profiled steel part 41 of the vertical connector 4 comprises a C-shaped steel 41 and a steel web 45, the C-shaped steel 41 is cold-formed steel; the angle between the adjacent two sides of the C-shaped opening of the C-shaped steel 41 is 90 degrees; the opening of the C-shaped steel 41 is partially provided with a sealing plate 8 . A tie member 7 is provided at intervals between the chamber side plates 2, and the tie member 7 is a tie steel plate. The upper and lower multi-cavity steel pipes are assembled with reference to Fig. 4 for implementation.

Embodiment 4,

As shown in Figure 7, a quick-assemble multi-cavity concrete-filled steel pipe shear wall, the shear wall includes end pieces 1, cavity side plates 2, vertical connectors 4 and concrete 5; the shear wall is the word "一" Type, which includes two end pieces 1, the end pieces 1 are flat steel plates, located at the end of the shear wall section; three vertical connecting pieces 4 are arranged between the end pieces 1; the end pieces 1 Part 1 and the adjacent vertical connector 4 and the adjacent vertical connector 4 are formed by welding several pairs of cavity side plates 2 to form a multi-cavity steel pipe; the multi-cavity steel pipe is filled with concrete 5, and the concrete 5 It is plain concrete; the cavity side plate 2 is a flat steel plate; the vertical connector 4 includes a C-shaped steel 41 , a bottom connecting block 42 and a top connecting block 43 . The section steel member 41 is a vertical member whose cross section includes two C-shaped openings facing oppositely and towards the outside of the shear wall; the bottom connecting block 42 and the top connecting block 43 are respectively welded to the two ends of the C-shaped steel 41; Each of the bottom connection block 42 and the top connection block 43 includes two bolt holes 44 ; the bolt holes 44 are located inside the opening of the C-shaped steel 41 . The C-shaped steel 41 of the vertical connector 4 is welded steel of three flat steel plates; the angle between the adjacent two sides of the C-shaped opening of the C-shaped steel 41 is 90 degrees; There is a tie piece 7, and the tie piece 7 is a peg. The upper and lower multi-cavity steel pipes are assembled with reference to Fig. 4 for implementation.

The bolt holes of the bottom plate of the vertical connector 4 of the upper multi-cavity steel pipe of the two multi-cavity steel pipes to be assembled are aligned with the bolt holes of the top plate of the vertical connector 4 of the lower multi-cavity steel pipe, and then the Fasteners are inserted into the bolt holes for connection; the connection mode of the end plates of the two multi-cavity steel pipes is welding or bolt connection; the cavity side plates of the upper and lower multi-cavity steel pipes can be connected or not connected according to engineering needs; the upper and lower The steel plates in the cavity of the multi-layer multi-cavity steel pipe are not connected.

Claims (10)

1. A fast-assembled multi-cavity concrete-filled steel pipe shear wall, including in-line, L-shaped, I-shaped, C-shaped, and T-shaped structures composed of end pieces (1), cavity side plates (2) and concrete (5) Or a Z-shaped wall, characterized in that: the cavity side plates (2) are arranged opposite to each other, forming a strip-shaped large cavity with the end piece (1); the cavity side plates (2) are spaced apart from a plurality of fixed Symmetric cavity side plates and vertical connectors (4) for quick assembly of the upper and lower multi-cavity concrete-filled steel tube shear walls, the cavity side plates (2) between the vertical connectors (4) are provided with multiple The tie piece (7), the vertical connector (4) divides the large strip-shaped cavity into several small rectangular cavities, and the concrete (5) is filled in the small rectangular cavity; the vertical connector ( 4) Two C-shaped steels (41) are arranged axially symmetrically, with back-to-back openings facing the outside of the wall, and the two C-shaped steels (41) are connected as a whole, and the upper and lower ends of each C-shaped steel (41) are respectively equipped with top connections. Block (43) and bottom connecting block (42); Described top connecting block (43) and bottom connecting block (42) have bolt holes (44) on the same axis respectively, and the number of bolt holes depends on the shear force Density settings for wall width and vertical connector placement. 2. A kind of fast assembled multi-cavity steel pipe concrete shear wall according to claim 1, characterized in that: the end piece (1) is a flat steel plate, H-shaped steel, channel steel, T-shaped steel and rectangular steel pipe one or more species. 3. A fast assembled multi-cavity concrete-filled steel tube shear wall according to claim 1, characterized in that: the cavity side plate (2) is a corrugated steel plate, a flat steel plate or a corrugated steel plate. 4. A kind of quickly assembled multi-cavity concrete-filled steel tube shear wall according to claim 3, characterized in that: the corrugated direction of the corrugated steel plate is arranged horizontally or vertically, and the waveform of the corrugated steel plate is a sine wave, a rectangular wave and A type of trapezoidal wave. 5. A fast assembled multi-cavity concrete-filled steel tube shear wall according to claim 1, characterized in that: said concrete (5) is one of plain concrete, reinforced concrete, steel concrete and fiber concrete. 6. A kind of fast assembled multi-chamber concrete-filled steel tube shear wall according to claim 1, characterized in that: one or more steel webs ( 45). 7. A quick-assemble multi-cavity concrete-filled steel tube shear wall according to claim 1, characterized in that: said anchors (7) are studs, anchor steel plates, anchor bars or tie bolts one or more. 8. A quick-assemble multi-cavity concrete-filled steel tube shear wall according to claim 1, characterized in that: said C-shaped steel (41) is cold-formed steel, hot-rolled steel, plate welded steel or rectangular One or more types of partially open steel pipes. 9. A fast-assembled multi-cavity concrete-filled steel tube shear wall according to claim 1 or 8, characterized in that: the opening of the C-shaped steel (41) is provided with a sealing plate (8) to improve stability. 10. A quick-assemble multi-cavity concrete-filled steel tube shear wall according to claim 1, characterized in that: said L-shaped, I-shaped, C-shaped, T-shaped or Z-shaped wall at the corner of the wall is convex Angle, the cavity side plate (2) that is connected with C-shaped steel (41) along C-shaped steel (41) opening direction is flat steel plate.

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