CN109797871B - Double-steel-plate composite shear wall connected by supporting angle steel and composite floor slab connecting node - Google Patents
Double-steel-plate composite shear wall connected by supporting angle steel and composite floor slab connecting node Download PDFInfo
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- CN109797871B CN109797871B CN201910107331.8A CN201910107331A CN109797871B CN 109797871 B CN109797871 B CN 109797871B CN 201910107331 A CN201910107331 A CN 201910107331A CN 109797871 B CN109797871 B CN 109797871B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 193
- 239000010959 steel Substances 0.000 title claims abstract description 193
- 239000002131 composite material Substances 0.000 title claims abstract description 61
- 238000010276 construction Methods 0.000 claims description 6
- 230000002596 correlated effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 238000003466 welding Methods 0.000 description 6
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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Abstract
The invention discloses a joint for connecting a double-steel-plate composite shear wall and a composite floor slab, which is connected by supporting angle steel, and comprises a double-steel-plate composite shear wall, a composite floor slab and supporting angle steel arranged on two sides of the double-steel-plate composite shear wall; one flange of the supporting angle steel is fixedly connected to the double-steel-plate combined shear wall and extends into the combined floor slab to form a fixed flange, and the other flange of the supporting angle steel is overhanging and positioned at the bottom of the combined floor slab to form an overhanging flange; the upper steel bars of the composite floor slab are continuous at the double-steel-plate composite shear wall and pass through two steel plates of the double-steel-plate composite shear wall; the lower steel bars or the bottom thin steel plates or the profiled steel plates of the composite floor slab are broken at the double-steel plate composite shear wall and are respectively and fixedly connected to the inner surfaces of overhanging flanges of the supporting angle steels at two sides of the double-steel plate composite shear wall. The double-steel-plate combined shear wall is connected with the combined floor slab through the supporting angle steel, so that the performance of the double-steel-plate combined shear wall is complete, and joint areas are stressed together; the structure is simple, the force transmission path is clear, and the assembly trend is met.
Description
Technical Field
The invention relates to constructional engineering, in particular to a double-steel-plate combined shear wall and combined floor slab connecting node connected by supporting angle steel.
Background
Currently, national policies are set aside to develop fabricated steel structure buildings. The double-steel-plate combined shear wall is gradually popularized and used as a side force resisting component of a high-rise steel structure house due to the high bearing capacity. The common double-steel-plate combined shear wall in the engineering is not broken in the whole structure, and multiple layers are hoisted and poured together; the integral performance of the shear wall is easy to ensure, and the construction speed is increased.
Meanwhile, the joint of the composite floor and the composite floor is also one of important structures and important stress parts in a high-rise steel structure residential system. According to the related research literature at home and abroad, the number of the node structural forms is small, and most of the node structural forms are not suitable for the double-steel-plate combined shear wall with the thin thickness and are not beneficial to the arrangement of the steel structure house fireproof structure. Therefore, a node form which is simple in structure, clear in force transmission and easy to construct is needed to be provided.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a joint for connecting a double-steel-plate composite shear wall and a composite floor slab, wherein the joint is connected by supporting angle steel. According to the invention, a plurality of node forms are comprehensively considered, the form of not breaking the double-steel-plate composite shear wall is adopted, the composite floor slab is broken, the composite floor slab is connected through the supporting angle steel, and the split bolts and the welding seams are connected with the form of the supporting angle steel and the double-steel-plate composite shear wall, so that the double-steel-plate composite shear wall has complete performance, and the node areas are stressed together; the structure is simple, the force transmission path is clear, and the assembly trend is met.
The technical scheme adopted by the invention is as follows: the double-steel-plate composite shear wall and composite floor slab connecting node connected by the support angle steel comprises a double-steel-plate composite shear wall, a composite floor slab and support angle steel arranged on two sides of the double-steel-plate composite shear wall;
the double-steel-plate combined shear wall comprises two opposite steel plates, and a concrete pouring cavity is formed between the two steel plates; the composite floor slab comprises a steel bar and a steel structure main body in the floor slab, wherein the steel bar and the steel structure main body in the floor slab comprise upper steel bars, lower steel bars and steel bar trusses, or comprise upper steel bars, lower steel bars, steel bar trusses and bottom thin steel plates, or comprise upper steel bars, lower steel bars and profiled steel plates, and the structural steel bars are configured according to different requirements; one flange of the supporting angle steel is fixedly connected to a steel plate of the double-steel-plate combined shear wall and extends into the combined floor slab to form a fixed flange, and the other flange of the supporting angle steel is overhanging and positioned at the bottom of the steel bar and the steel structure main body in the floor slab to form an overhanging flange;
the steel bars in the floor slab and the upper steel bars of the steel structure main body are continuous at the double-steel-plate combined shear wall and pass through two steel plates of the double-steel-plate combined shear wall; the lower steel bars or the bottom thin steel plates or the profiled steel plates positioned on two sides of the double-steel-plate combined shear wall are respectively fixedly connected to the inner surfaces of overhanging flanges of the supporting angle steels positioned on two sides of the double-steel-plate combined shear wall.
Furthermore, shear studs for preventing the combined floor slab from sliding in the horizontal direction are arranged on the overhanging flanges of the support angle steel at intervals.
Furthermore, the fixed flanges of the supporting angle steel positioned at the two sides of the double-steel-plate combined shear wall are fixedly connected to the steel plates of the double-steel-plate combined shear wall through split bolts, and the upper edges and the lower edges of the fixed flanges of the supporting angle steel are welded with the steel plates of the double-steel-plate combined shear wall.
Further, the length and the thickness of the supporting angle steel are positively correlated with the thickness of the composite floor slab; the length of the fixed flange of the supporting angle steel is not less than 50mm and is not more than the height of the upper steel bar of the steel structure main body in the floor slab; the length of the cantilever flange of the support angle steel is not less than 50mm and not more than 200mm.
The beneficial effects of the invention are as follows:
(1) The node adopts the structural form of supporting angle steel to support the composite floor slab, so that the complete stress performance of the double-steel-plate composite shear wall body is ensured, the arrangement of the fireproof structure of the wall body building is easy, and the rigidity of the node domain is fully ensured;
(2) The joint fully utilizes the performance of the split bolts in the double-steel-plate combined shear wall body, not only meets the construction requirement of the double-steel-plate combined shear wall, but also ensures that the double-steel-plate combined shear wall is tightly connected with the outer surface of the supporting angle steel to form an integral stress system, and improves the ultimate bearing capacity of the joint domain to a certain extent.
(3) The joint force transmission path is clear, and the stress of the joint area is mainly borne by the flange of the supporting angle steel and the upper steel bar of the combined floor slab;
(4) The node has simple integral structure, most of components can be prefabricated, and the node is easy to construct and accords with the trend of an assembled building.
Drawings
Fig. 1: the three-dimensional perspective view of the invention;
fig. 2: the main schematic diagram of the node steel structure of the invention (the combined floor slab takes a detachable steel bar truss floor bearing plate with the span of 600mm as an example);
fig. 3: the invention is a schematic diagram of a front view structure;
fig. 4: the invention is a schematic top view structure;
fig. 5: the supporting angle steel structure of the invention is schematically shown;
the drawings are marked: the composite shear wall comprises a 1-double steel plate composite shear wall, a 2-composite floor slab, 3-supporting angle steel, 4-split bolts, 5-shear-resistant studs, 6-steel bars in the floor slab, a steel structure main body and 7-steel plates.
Detailed Description
For a further understanding of the invention, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings in which:
as shown in fig. 1 to 5, a joint for connecting a double-steel-plate composite shear wall and a composite floor slab with support angle steel comprises a double-steel-plate composite shear wall 1, a composite floor slab 2 and support angle steel 3.
The double-steel-plate combined shear wall 1 comprises two opposite steel plates 7, wherein the two steel plates 7 are fixed through split bolts 4, and a concrete pouring cavity is formed.
The composite floor slab 2 comprises steel bars and a steel structure main body 6 in the floor slab, wherein the steel bars and the steel structure main body 6 in the floor slab comprise upper steel bars, lower steel bars and steel bar trusses, or comprise upper steel bars, lower steel bars, steel bar trusses and bottom thin steel plates, or comprise profiled steel plates with different thicknesses of the upper steel bars, the lower steel bars and the bottom, and corresponding construction steel bars can be configured according to different requirements. In this embodiment, the composite floor slab 2 is a detachable steel bar truss floor support plate.
The two supporting angle steels 3 are arranged on two sides of the double-steel-plate combined shear wall 1 respectively. One flange of the supporting angle steel 3 is fixedly connected to a steel plate 7 of the double-steel-plate combined shear wall 1 and extends into the combined floor slab 2 to form a fixed flange, and the other flange of the supporting angle steel 3 is overhanging and positioned at the bottom of a steel bar and steel structure main body 6 in the floor slab to form an overhanging flange; the structural form of the supporting angle steel 3 can enable the supporting angle steel 3 to be embedded into the concrete protection layer of the composite floor slab 2, and the supporting angle steel 3 is not easy to rust. The support angle steel 3 and the double-steel-plate combined shear wall 1 are connected in two modes, namely, the upper edge and the lower edge of the fixed flange are connected by adopting fillet welds and the split bolts 4 are tied and fixed, so that the connection quality is guaranteed together, and the whole shear wall is stressed. Shear studs 5 used for preventing the combined floor slab 2 from sliding in the horizontal direction are arranged on the overhanging flanges of the support angle steel 3 at intervals.
The steel bars in the floor slab and the upper steel bars of the steel structure main body 6 are continuous at the double-steel-plate combined shear wall 1 and pass through two steel plates 7 of the double-steel-plate combined shear wall 1; the lower steel bars or the bottom thin steel plates or the profiled steel plates of the steel structure main body 6 in the floor slab are broken at the double-steel-plate combined shear wall 1, and the lower steel bars or the bottom thin steel plates or the profiled steel plates positioned at two sides of the double-steel-plate combined shear wall 1 are fixedly connected to the inner surfaces of overhanging flanges of the supporting angle steel 3 positioned at two sides of the double-steel-plate combined shear wall 1 respectively in a welding mode.
The node steel structure main body of the invention can be prefabricated in a factory and assembled on site, as shown in fig. 2. Firstly, hoisting double steel plates 7 in multiple layers, extending split bolts 4 to be tightly connected with a fixed flange of a supporting angle steel 3, and welding lower steel bars (or bottom thin steel plates or profiled steel plates) of a rear combined floor slab 2 with the inner surface of an overhanging flange of a supporting leg steel; meanwhile, the upper reinforcing steel bars of the composite floor slab 2 need to completely penetrate through the double-steel-plate composite shear wall 1. The double-steel-plate combined shear wall 1 is thinner (< 200 mm), and is more in line with the development trend of the current fabricated steel structure house; the length and the thickness of the supporting angle steel 3 meet the design requirements and are positively correlated with the thickness of the composite floor slab 2; the fixed flange at the joint of the double-steel-plate combined shear wall 1 can be shortened, but the minimum length is not suitable to be less than 50mm, and is not suitable to be greater than the height of the upper reinforcing steel bars of the combined floor slab 2, so that the upper reinforcing steel bars can completely penetrate through the double-steel-plate combined shear wall 1; the cantilever flanges at the welding parts with the lower reinforcing steel bars of the composite floor slab 2 can be stretched, but the length is not more than 200mm, and not less than 50mm. The length and span of the composite floor slab 2 meet the corresponding specification requirements. In construction, firstly, hoisting the double-steel-plate composite shear wall 1 in multiple layers, and then, extending the split bolts 4 of the wall body and connecting the split bolts with the supporting angle steel 3; and then the steel bars and the steel structure main body 6 in the floor slab are installed, and then the steel structure main body is poured uniformly, so that the construction is quick and convenient, and the trend of the assembled building is met.
The node steel structure main body is prefabricated in a factory, assembled on site and then poured with concrete uniformly. Tightly connecting the supporting angle steel 3 with the double-steel-plate combined shear wall 1 without breaking the wall; the lower steel bar (or the bottom thin steel plate or the profiled steel plate) of the composite floor slab 2 is welded on the overhanging flange of the supporting angle steel 3, and the upper steel bar passes through the web plate; the structure is simple, the force transmission path is clear, and the assembly trend is met.
The whole force transmission mechanism of the node domain is as follows: the vertical load of the composite floor slab 2 is transmitted to the supporting angle steel 3, and the supporting angle steel 3 is transmitted to the split bolt 4 and the welding seam, so that the split bolt 4 and the welding seam bear drawing force; the upper steel bar passes through the double-steel-plate combined shear wall 1 and bears the tensile force generated at the reverse bending point; under the double guarantee, the joint areas are stressed together, and force transmission is clear. Compared with the traditional node form, the overhead form of the supporting angle steel 3 can enable the supporting angle steel 3 to be embedded into the concrete protection layer of the composite floor slab 2, and the supporting angle steel 3 is not easy to rust; meanwhile, the fireproof plate layout of the double-steel-plate combined shear wall 1 is facilitated, the main body side force resisting component in the high-rise residence is not easy to rust and keeps a certain bearing capacity at high temperature, and structural collapse caused by too fast reduction is avoided.
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the appended claims, which are within the scope of the present invention.
Claims (2)
1. The double-steel-plate composite shear wall and composite floor slab connecting node for supporting angle steel connection comprises a double-steel-plate composite shear wall (1) and a composite floor slab (2), wherein the double-steel-plate composite shear wall (1) comprises two opposite steel plates (7), and a concrete pouring cavity is formed between the two steel plates (7); the composite floor slab (2) comprises a steel bar and a steel structure main body (6) in the floor slab, wherein the steel bar and the steel structure main body (6) in the floor slab comprise upper steel bars, lower steel bars and steel bar trusses, or comprise the upper steel bars, the lower steel bars, the steel bar trusses and bottom thin steel plates, or comprise the upper steel bars, the lower steel bars and profiled steel plates, and the construction steel bars are configured according to different requirements; the double-steel-plate combined shear wall is characterized by further comprising supporting angle steels (3) arranged on two sides of the double-steel-plate combined shear wall (1), wherein one flange of the supporting angle steel (3) is fixedly connected to a steel plate (7) of the double-steel-plate combined shear wall (1) and extends into the combined floor slab (2), the supporting angle steels are fixed flanges, the other flange of the supporting angle steels (3) is overhanging and is positioned at the bottoms of steel bars and a steel structure main body (6) in the floor slab, and the overhanging flanges are formed;
the steel bars in the floor slab and the upper steel bars of the steel structure main body (6) are continuous at the double-steel-plate combined shear wall (1) and pass through two steel plates (7) of the double-steel-plate combined shear wall (1); the lower steel bars or the bottom thin steel plates or the profiled steel plates of the steel structure main body (6) in the floor slab are broken at the double-steel-plate combined shear wall (1), and the lower steel bars or the bottom thin steel plates or the profiled steel plates positioned at two sides of the double-steel-plate combined shear wall (1) are respectively and fixedly connected to the inner surfaces of overhanging flanges of the supporting angle steels (3) positioned at two sides of the double-steel-plate combined shear wall (1);
shear studs (5) for preventing the combined floor slab (2) from sliding in the horizontal direction are arranged on the overhanging flanges of the support angle steel (3) at intervals;
the fixed flanges of the supporting angle steels (3) positioned on two sides of the double-steel-plate combined shear wall (1) are fixedly connected to the steel plates (7) of the double-steel-plate combined shear wall (1) through opposite-pull bolts (4), and the upper edges and the lower edges of the fixed flanges of the supporting angle steels (3) are welded with the steel plates (7) of the double-steel-plate combined shear wall (1).
2. The double-steel-plate composite shear wall and composite floor slab connecting node connected by supporting angle steel according to claim 1, wherein the length and thickness of the supporting angle steel (3) are positively correlated with the thickness of the composite floor slab (2); the length of the fixed flange of the supporting angle steel (3) is not less than 50mm and is not more than the height of the upper steel bar of the steel structure main body (6) in the floor slab; the length of the cantilever flange of the support angle steel (3) is not less than 50mm and not more than 200mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910107331.8A CN109797871B (en) | 2019-02-02 | 2019-02-02 | Double-steel-plate composite shear wall connected by supporting angle steel and composite floor slab connecting node |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910107331.8A CN109797871B (en) | 2019-02-02 | 2019-02-02 | Double-steel-plate composite shear wall connected by supporting angle steel and composite floor slab connecting node |
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| CN109797871A CN109797871A (en) | 2019-05-24 |
| CN109797871B true CN109797871B (en) | 2024-04-02 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273481B (en) * | 2019-07-30 | 2023-12-29 | 华侨大学 | Connecting node of double-steel-plate combined shear wall and floor slab and construction method thereof |
| CN113374180B (en) * | 2021-06-22 | 2023-03-31 | 姚攀峰 | Grouting sleeve connection concrete reinforcing structure and construction method |
| CN114922332A (en) * | 2022-06-27 | 2022-08-19 | 山东建筑大学 | Steel plate interlayer-concrete assembled composite floor slab and connecting structure of steel plate interlayer-concrete assembled composite floor slab and steel beam |
| CN117107920B (en) * | 2023-09-26 | 2024-03-26 | 中国建筑科学研究院有限公司 | Connecting node of compartment type combined shear wall and floor slab and construction method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090126819A (en) * | 2008-06-05 | 2009-12-09 | (주)영구조엔지니어링 | Continuous support type truss-deck construction system |
| CN207846689U (en) * | 2017-12-25 | 2018-09-11 | 北京千城集成房屋有限公司 | A kind of connecting node of double steel plate shear wall and floor negative reinforcement |
| CN209874081U (en) * | 2019-02-02 | 2019-12-31 | 天津大学 | Double-steel-plate combined shear wall and combined floor slab connecting joint connected by supporting angle steel |
-
2019
- 2019-02-02 CN CN201910107331.8A patent/CN109797871B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090126819A (en) * | 2008-06-05 | 2009-12-09 | (주)영구조엔지니어링 | Continuous support type truss-deck construction system |
| CN207846689U (en) * | 2017-12-25 | 2018-09-11 | 北京千城集成房屋有限公司 | A kind of connecting node of double steel plate shear wall and floor negative reinforcement |
| CN209874081U (en) * | 2019-02-02 | 2019-12-31 | 天津大学 | Double-steel-plate combined shear wall and combined floor slab connecting joint connected by supporting angle steel |
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