Cross-shaped thin-film wall abdomen and assembled thin-film wall abdomen composite shear wall structure

Abstract

A cross-shaped thin-film wall abdomen and an assembled thin-film wall abdomen composite shear wall structure, comprising four L-shaped wall abdomen units with the same structure. The L-shaped wall abdomen unit includes a steel skeleton, a steel film, a vertical steel bar truss and horizontal distribution bars. The steel skeleton is an L-shaped frame, and the L-shaped frame is formed by vertically welding two straight frames with the same structure. One side where the included angle of the two straight frames is 90 degrees is the outer side of the steel skeleton. On the outer side of the steel skeleton, a steel film is welded and enclosed on each of the two straight frames. A baffle is provided on the side where the straight frame is connected to the square steel column, and a casting hole for the horizontal distribution bars to pass through is provided on the baffle. The four L-shaped wall abdomen units are arranged in central symmetry, and the inner sides of the adjacent steel skeletons are relatively arranged, and the baffles of the adjacent steel skeletons are connected and fixed to each other. This device saves steel and has good economy. The whole can be prefabricated in the factory, and the on-site assembly degree is higher.

Description

Technical Field

[0001] The present invention belongs to the field of building structures, and particularly relates to a cross-shaped thin-film wall abdomen and an assembled thin-film wall abdomen composite shear wall structure. Background Art

[0002] The main structures in buildings include two types: concrete structures and steel structures. The defects of traditional concrete structures are as follows: a large amount of on-site labor is required, a large amount of wood is used in construction, and pollution such as waste water and dust is serious. However, the advantage of concrete structures is that they can provide better lateral resistance in the shear wall structure system, and the building layout is relatively flexible; steel structures are an industrialized building system, and steel structures meet the requirements of building industrialization standards such as standardized design, factory production, assembled construction, and information management. Steel structures adopt assembled construction, which can save a large amount of labor during the construction process and generate less construction waste, being energy-saving and environmentally friendly. However, most of the steel columns in steel structures are rectangular columns, and when applied in residential buildings, the steel column convex corners indoors bring inconvenience to the building layout. Therefore, there are various existing steel-concrete composite shear wall abdomens, which have both the advantages of flexible layout and good lateral stiffness of concrete shear walls, and the advantages of high industrialization degree of steel structure production and fast construction speed. However, for the existing steel-concrete composite shear walls, since the entire wall uses steel plates, and vertical partitions need to be set between the steel plates on both sides of the wall to improve the connection strength. On the one hand, the steel consumption is large, and the cost is higher than that of conventional concrete structures. On the other hand, due to the existence of vertical partitions, multiple small cavities are formed between the steel-concrete composite shear walls, and the concrete cannot be filled solid in the small cavities, resulting in a mismatch between the calculated amount and the actual amount of concrete, causing relatively large potential safety hazards. Summary of the Invention

[0003] The present invention provides a cross-shaped thin-film wall abdomen and an assembled thin-film wall abdomen composite shear wall structure with reasonable force, fast construction speed, high construction efficiency, low steel consumption, and low cost to solve the deficiencies of the prior art.

[0004] To achieve the above object, the present invention first proposes a cross-shaped thin-film wall abdomen, which includes four L-shaped wall abdomen units with the same structure. The L-shaped wall abdomen unit includes a steel skeleton, a steel film, a vertical steel bar truss, and horizontal distribution steel bars. The steel skeleton is an L-shaped frame, and the L-shaped frame is formed by vertically welding two straight frames with the same structure. On the outer sides of the steel skeleton, a steel film is welded to each of the two straight frames respectively, and the steel film closes the openings on the straight frames. The straight frame is provided with a baffle on the side connected to the square steel column, and a pouring hole for the horizontal distribution steel bars to pass through is provided on the baffle. The inner sides of the four L-shaped wall abdomen units are opposite to each other and are arranged symmetrically about the center. The opposite baffles of the adjacent steel skeletons are connected and fixed to each other.

[0005] A plurality of groups of vertical steel trusses are fixed on the inner side of the steel frame and on each steel membrane. The inner sides of adjacent steel frames and on one side of the same vertical plane are connected by a plurality of horizontal distribution bars arranged perpendicularly to the vertical steel trusses. The top of the vertical steel trusses extends from the top of the L-shaped wall web unit as the first lap steel bar, and the two ends of the horizontal distribution bars extend from both sides of the L-shaped wall web unit as the second lap steel bars.

[0006] By adopting the above structure, the present structure divides the cross-shaped membrane wall into four L-shaped wall units of the same structure, and the L-shaped wall units are composed of a steel skeleton and a steel membrane. Compared with the existing steel plate, the steel membrane greatly reduces the amount of steel used, thereby saving costs. Moreover, the L-shaped wall units composed of the steel skeleton and the steel membrane are convenient for factory prefabrication and installation, so that the degree of on-site assembly is higher and the construction speed is faster. On the other hand, it is convenient for the installation and arrangement of the internal vertical steel trusses and horizontal distribution bars. The present structure simultaneously arranges the vertical steel trusses and the horizontal distribution bars in the cross-shaped membrane wall. The distribution bars and vertical steel bar trusses increase the stiffness of the cross-shaped membrane wall web and reduce the weight of the entire cross-shaped membrane wall web, making it more suitable for the process of transporting it to the construction site for assembly after prefabrication in the factory. The upper side and four sides of this structure are provided with lap steel bars to facilitate the connection of the four side steel columns and the top cross-shaped membrane wall web. Since the lap steel bars are formed by the vertical steel bar trusses and horizontal distribution bars pre-buried inside the cross-shaped membrane wall web, the overall performance is good, which ensures the lateral resistance of the wall after the overall formation. The entire structure can be prefabricated in the factory, and the degree of assembly on site is higher.

[0007] In this embodiment, steel legs are fixed to the top and bottom of adjacent steel frames and on opposite sides, and the steel legs of adjacent steel frames are connected to each other as a whole through steel connecting plates and high-strength bolts. When four L-shaped wall belly units are installed, adjacent L-shaped wall belly units are pre-installed and connected through steel legs, steel connecting plates and high-strength bolts, thereby facilitating assembly.

[0008] In this embodiment, each set of vertical steel bar trusses includes three vertical steel bars arranged in a triangle and a plurality of oblique steel bars welded between adjacent vertical steel bars to fix the three vertical steel bars. The vertical steel bar trusses are used to ensure that the vertical tension or pressure of the cross-shaped membrane wall belly meets the design requirements, and the weight of the entire cross-shaped membrane wall belly is reduced while increasing the rigidity of the cross-shaped membrane wall belly.

[0009] In this embodiment, the steel film is a galvanized steel film or the steel film is a steel film coated with a rust-proof material layer on both the inner and outer sides, which can improve the rust-proof performance of the steel film.

[0010] In this embodiment, the vertical steel bar trusses on the inner sides and opposite surfaces of two adjacent L-shaped wall web units are arranged staggeredly. The height of the triangle formed by the cross-section of the vertical steel bar truss is greater than the height of one rib and less than the height of two ribs. With the above structure, when connecting adjacent L-shaped wall web units, the internal vertical steel bar trusses are arranged staggeredly. On the one hand, it is convenient for installation. On the other hand, due to the height of the vertical steel bar truss, after assembly, the vertical steel bar trusses in the outer wall web and the inner wall web will extend into the pouring cavities of each other. In this way, after the outer wall web and the inner wall web are assembled, the integrity is better.

[0011] In this embodiment, the vertical steel bar truss is welded and connected to the steel film through legs, and the horizontal distribution bars are welded and connected to both the steel skeleton and the vertical steel bar truss.

[0012] The present invention also includes an assembled thin-film wall web combined shear wall structure, which includes the above-mentioned cross-shaped thin-film wall web and square steel columns arranged at the ends of the cross-shaped thin-film wall web;

[0013] The cross-shaped thin-film wall web in the lower layer is inserted into the bottom of the cross-shaped thin-film wall web in the upper layer through the first lap joint steel bars, and the lap joint part of the upper and lower cross-shaped thin-film wall webs is welded and connected. Square holes are provided on the lap joint surfaces of the square steel columns facing the cross-shaped thin-film wall webs. The second lap joint steel bars on both sides of the cross-shaped thin-film wall web are inserted into the square steel columns, and the lap joint part of the cross-shaped thin-film wall web and the square steel column is welded and connected. Concrete is poured into the cross-shaped thin-film wall web and the square steel column. With the above structure, by using the cross-shaped thin-film wall web, the cross-shaped thin-film wall web and the square steel column are assembled with each other using lap joint steel bars according to the design requirements. After assembly, by ensuring the conduction of the pouring holes on the cross-shaped thin-film wall web and the square holes on the square steel column, it is ensured that the concrete in the cross-shaped thin-film wall web and the square steel column is filled solid. In this way, the quality of the shear wall structure is ensured to be reliable, and the steel consumption is saved and the cost is low.

[0014] In this embodiment, vertical inserted steel bars are reserved at the top of the square steel column, and anticorrosive paint and fireproof paint are applied to the outside of the square steel column.

[0015] In this embodiment, before pouring, a plurality of transverse angle steel supports for supporting the steel film are detachably installed on the outer side of the cross-shaped thin-film wall web, and both ends of the transverse angle steel supports are fixed on the steel skeleton. The transverse angle steel supports prevent the steel film from deforming too much during the pouring process.

[0016] With the above structure, this structure has the following advantages:

[0017] 1. Save steel consumption, economical and fast;

[0018] 2. Higher degree of on-site assembly and faster construction speed;

[0019] 3. The cross-shaped thin-film wall abdominal composite shear wall component can be prefabricated and assembled for use. The product quality is reliable, and a large amount of labor can be saved.

[0020] In summary, the present device is composed of a steel skeleton and a steel film. Compared with the existing steel plates, the steel consumption of the steel film is greatly reduced, thus saving costs. Moreover, the entire device can be prefabricated in the factory, and the on-site assembly degree is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the L-shaped wall abdominal unit of the present invention;

[0022] Figure 2 It is a schematic structural diagram of the steel skeleton and the steel film of the present invention;

[0023] Figure 3 It is a process diagram of the assembly of the assembled thin-film wall abdominal composite shear wall structure of the present invention;

[0024] Figure 4 It is a top view of the assembled thin-film wall abdominal composite shear wall structure of the present invention;

[0025] Figure 5 It is a three-dimensional assembled view of the assembled thin-film wall abdominal composite shear wall structure of the present invention;

[0026] Figure 6 It is a three-dimensional view of the assembled thin-film wall abdominal composite shear wall structure of the present invention;

[0027] Figure 7 It is a three-dimensional view of the assembled thin-film wall abdominal composite shear wall structure of the present invention with a transverse angle steel support arranged outside.

[0028] In the drawings, 2. Square steel column; 3. Cross-shaped thin-film wall abdomen; 3a. L-shaped wall abdominal unit; 4. Second lap steel bar; 5. Concrete; 6. Steel skeleton; 6a. Edge stop; 6b. Straight frame; 7. Steel film; 8. Vertical steel bar truss; 9. Horizontal distribution steel bar; 10. Vertical inserted steel bar; 11. Transverse angle steel support; 12. Steel support leg; 13. Steel connection piece; 14. High-strength bolt; 15. Temporary ear plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0031] Embodiment 1:

[0032] As Figures 1 to 2 shown, the present invention provides a cross-shaped thin-film wall abdomen including four L-shaped wall abdomen units with the same structure. The L-shaped wall abdomen unit 3a includes a steel skeleton 6, a steel film 7, a vertical steel bar truss 8, and horizontal distribution bars 9. The steel skeleton 6 is an L-shaped frame, and the L-shaped frame is formed by vertically welding two straight frames 6b with the same structure. The length and width of the steel skeleton 6 can be designed and determined according to the construction conditions. In this embodiment, the steel film 7 is a galvanized steel film 7 to prevent rust. Of course, an anti-corrosion coating can also be applied outside the steel film 7 to achieve rust prevention. The vertical steel bar truss 8 is arranged in the vertical direction, and the horizontal distribution bars 9 are arranged in the horizontal direction, and the vertical steel bar truss 8 and the horizontal distribution bars 9 are arranged perpendicular to each other. Let the side where the included angle between the two straight frames 6b is 90 degrees be the outside of the steel skeleton 6. On the outside of the steel skeleton 6, a steel film 7 is welded on each of the two straight frames 6b to enclose. On the side where the straight frame 6b is connected to the square steel column 2, there is a flange 6a, and a pouring hole for the horizontal distribution bars 9 to pass through is provided on the flange 6a. The pouring hole is a long strip-shaped opening to facilitate the horizontal distribution bars 9 to pass through. The four L-shaped wall abdomen units 3a are arranged in central symmetry, and the inner sides of the adjacent steel skeletons 6 are arranged opposite to each other. The flanges 6a of the adjacent steel skeletons 6 are welded to each other. At the top and bottom of the adjacent steel skeletons 6, steel legs 12 are correspondingly fixed on the opposite sides. The steel legs 12 of the adjacent steel skeletons 6 are connected into a whole through steel connecting pieces 13 and high-strength bolts 14. When installing the four L-shaped wall abdomen units 3a, the adjacent L-shaped wall abdomen units 3a are pre-installed and connected through the steel legs 12, steel connecting pieces 13, and high-strength bolts 14, so as to facilitate assembly;

[0033] On the inner side of the steel skeleton 6, multiple groups of vertical steel bar trusses 8 are fixed on each steel film 7. The multiple groups of vertical steel bar trusses 8 are evenly arranged along the length direction of the steel skeleton 6. On the inner sides of the adjacent steel skeletons 6, one side in the same vertical plane is connected by multiple horizontal distribution bars 9. The horizontal distribution bars 9 connecting the adjacent steel skeletons 6 are integral steel bars. The multiple horizontal distribution bars 9 are evenly arranged along the height direction of the steel skeleton 6. The top of the vertical steel bar truss 8 extends out from the top of the L-shaped wall abdomen unit 3a as the first lapping steel bar, and both ends of the horizontal distribution bars 9 extend out from both sides of the L-shaped wall abdomen unit 3a as the second lapping steel bars 4.

[0034] Each set of vertical steel bar trusses 8 includes three vertical steel bars arranged in a triangle, and a plurality of inclined steel bars welded between adjacent vertical steel bars to fixedly connect the three vertical steel bars. The height of the triangle formed by the cross-section of the vertical steel bar truss 8 is greater than the depth of one rib 6a and less than the depth of two ribs 6a.

[0035] In this embodiment, the vertical steel bar trusses 8 on the inner sides and opposite surfaces of adjacent two L-shaped wall web units 3a are arranged staggeredly. The vertical steel bar trusses 8 are welded and connected to the steel film 7 through legs. The horizontal distribution bars 9 are welded and connected to both the steel skeleton 6 and the vertical steel bar trusses 8. During actual construction, first arrange the horizontal distribution bars 9, spot-weld the horizontal distribution bars 9 to the steel skeleton 6 and the vertical steel bar trusses 8 respectively, and the distance between the welding points is not greater than 600 mm. Then connect the legs of the vertical steel bar trusses 8 to the steel film 7 by spot welding, and then lay the steel film 7 on the steel skeleton 6. The steel film 7 and the steel skeleton 6 are connected together by intermittent welding.

[0036] Embodiment 2:

[0037] As Figures 3 - 7 shown, the present invention further includes an assembled thin-film wall web composite shear wall structure. Using the above-mentioned cross-shaped thin-film wall web 3, it further includes square steel columns 2 provided at the ends of the cross-shaped thin-film wall web 3. The lower cross-shaped thin-film wall web 3 is inserted into the bottom of the upper cross-shaped thin-film wall web 3 through the first lapping steel bars, and the lapping parts of the upper and lower cross-shaped thin-film wall webs 3 are welded and connected. Square holes are provided on the lapping surfaces of the square steel columns 2 facing the cross-shaped thin-film wall web 3. The second lapping steel bars 4 on both sides of the cross-shaped thin-film wall web 3 are inserted into the square steel columns 2, and the lapping parts of the cross-shaped thin-film wall web 3 and the square steel columns 2 are welded and connected. Concrete 5 is poured into the cross-shaped thin-film wall web 3 and the square steel columns 2 to form the final assembled cross-shaped thin-film wall web 3 composite shear wall. Before pouring concrete 5 on site, a plurality of temporary horizontal angle steel supports 11 are evenly arranged on the outer side of the cross-shaped thin-film wall web 3 to prevent the steel film 7 from deforming too much. Both ends of the horizontal angle steel supports 11 are fixed on the steel skeleton 6, and the horizontal angle steel supports 11 are also L-shaped.

[0038] In this embodiment, temporary ear plates 15 corresponding to the horizontal angle steel supports 11 are fixed on one side of the square steel columns 2 connected to the cross-shaped thin-film wall web 3. During manufacturing, before welding the steel film 7 on the steel skeleton 6, the temporary ear plates 15 of the square steel columns 2 are connected to the horizontal angle steel supports 11 to ensure that the cross-shaped thin-film wall web 3 has sufficient stiffness and does not deform. After the concrete 5 is poured on site and reaches 70% strength, the horizontal angle steel supports 11 can be removed and the temporary ear plates 15 can be cut off.

[0039] The square steel column 2 is coated with an anti-corrosion coating and a thin fireproof coating. The size of the square hole in the square steel column 2 is such that after the second lapping steel bar 4 is inserted into the square hole, the distance around the square hole from the steel bar is not less than 1 cm, and the length of the square steel column 2 in the wall direction matches the length of the second lapping steel bar 4. A vertical reinforcing bar 10 is reserved at the top of the square steel column 2, which facilitates better connection at the interface between the new and old concrete 5.

[0040] In this embodiment, stud bolts are evenly arranged along the height direction inside the square steel column 2 on the side far from the cruciform thin-film wall web 3, and the integrity between the steel column and the concrete 5 is increased by the stud bolts.

[0041] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the concept of the present invention by using the content of the specification and drawings of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A cross-shaped thin-film wall abdomen, characterized in that: It includes four L-shaped wall web units (3a) with the same structure. The L-shaped wall web unit (3a) includes a steel skeleton (6), a steel membrane (7), a vertical steel bar truss (8), and horizontal distribution steel bars (9). The steel skeleton (6) is an L-shaped frame, and the L-shaped frame is formed by vertically welding two straight frames (6b) with the same structure. On the outer side of the steel skeleton (6), a steel membrane (7) is welded to each of the two straight frames (6b) respectively, and the steel membrane (7) closes the opening on the straight frame (6b). On the side of the straight frame (6b) connected to the square steel column (2), there is a rib (6a), and a casting hole for the horizontal distribution steel bars (9) to pass through is provided on the rib (6a). The inner sides of the four L-shaped wall web units (3a) face each other and are arranged in central symmetry, and the ribs (6a) of the adjacent steel skeletons (6) facing each other are connected and fixed to each other. On the inner side of the steel skeleton (6), multiple groups of vertical steel bar trusses (8) are fixed on each steel membrane (7). On the inner sides of the adjacent steel skeletons (6), one side in the same vertical plane is connected by multiple horizontal distribution steel bars (9) arranged perpendicular to the vertical steel bar trusses (8). The top of the vertical steel bar truss (8) extends out from the top of the L-shaped wall web unit (3a) as the first lapping steel bar, and both ends of the horizontal distribution steel bar (9) extend out from both sides of the L-shaped wall web unit (3a) as the second lapping steel bar (4).

2. The cross-shaped thin-film wall abdomen according to claim 1, characterized in that: On the top and bottom of the adjacent steel skeletons (6), steel legs (12) are correspondingly fixed on the opposite sides, and the steel legs (12) of the adjacent steel skeletons (6) are connected into a whole through steel connecting pieces (13) and high-strength bolts (14).

3. The cross-shaped thin-film wall abdomen according to claim 1, characterized in that: Each group of vertical steel bar trusses (8) includes three vertical steel bars arranged in a triangle and multiple inclined steel bars welded between the adjacent vertical steel bars to fixedly connect the three vertical steel bars.

4. The cross-shaped thin-film wall abdomen according to claim 1, characterized in that: The steel membrane (7) is a galvanized steel membrane (7) or the steel membrane (7) is a steel membrane (7) coated with an anti-rust material layer on both the inner and outer sides.

5. The cross-shaped thin-film wall abdomen according to any one of claims 1 to 4, characterized in that: The vertical steel bar trusses (8) on the inner sides and opposite surfaces of the adjacent two L-shaped wall web units (3a) are arranged staggeredly.

6. The cross-shaped thin-film wall abdomen according to claim 5, characterized in that: The height of the triangle formed by the cross-section of the vertical steel bar truss (8) is greater than the height of one rib (6a) and less than the height of two ribs (6a).

7. The cross-shaped thin-film wall abdomen according to claim 5, characterized in that: The vertical steel bar truss (8) is welded and connected to the steel membrane (7) through legs, and the horizontal distribution steel bar (9) is welded and connected to both the steel skeleton (6) and the vertical steel bar truss (8).

8. A prefabricated thin-film wall abdomen composite shear wall structure, comprising the cross-shaped thin-film wall abdomen (3) according to any one of claims 1 to 7 and a square steel column (2) arranged at the end of the cross-shaped thin-film wall abdomen (3); characterized in that: The lower cross-shaped thin-film wall web (3) is inserted into the bottom of the upper cross-shaped thin-film wall web (3) through the first lapping steel bar, and the lapping part of the upper and lower cross-shaped thin-film wall webs (3) is welded and connected. Square holes are provided on the lapping surface of the square steel column (2) facing the cross-shaped thin-film wall web (3). The second lapping steel bars (4) on both sides of the cross-shaped thin-film wall web (3) are inserted into the square steel column (2), and the lapping part of the cross-shaped thin-film wall web (3) and the square steel column (2) is welded and connected. Concrete (5) is poured into the cross-shaped thin-film wall web (3) and the square steel column (2).

9. The prefabricated thin-film wall abdomen composite shear wall structure according to claim 8, characterized in that: Vertical inserted steel bars (10) are reserved at the top of the square steel column (2), and the outer side of the square steel column (2) is coated with anti-corrosion paint and fireproof paint.

10. The prefabricated thin-film wall abdomen composite shear wall structure according to claim 8, characterized in that: Before pouring, a plurality of transverse angle steel supports (11) for supporting the steel film (7) are detachably installed on the outer side of the cross-shaped thin film wall web (3), and both ends of the transverse angle steel support (11) are fixed on the steel skeleton (6).

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