CN209779951U - steel plate-ultrahigh-strength concrete combined shear wall structure - Google Patents
steel plate-ultrahigh-strength concrete combined shear wall structure Download PDFInfo
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- CN209779951U CN209779951U CN201920137724.9U CN201920137724U CN209779951U CN 209779951 U CN209779951 U CN 209779951U CN 201920137724 U CN201920137724 U CN 201920137724U CN 209779951 U CN209779951 U CN 209779951U
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Abstract
the utility model discloses a steel sheet-super strength concrete combination shear wall structure, including an outsourcing steel box, two steel supports and a plurality of bolt. The two steel supports are arranged at two ends of the length direction of the bottom of the inner cavity of the outer steel box after being completely coated with the sealing material, and ultrahigh-strength concrete is poured in the outer steel box. The utility model discloses a steel support has been set up in the marginal component of steel sheet-superhigh strength concrete combination shear wall structure, when the combination shear wall bears great plane bending moment, the deformation of shear wall tip is undertaken by steel support, avoids the concrete of tip to be conquashed, has guaranteed combination shear wall still possesses higher bearing capacity under great deformation condition.
Description
Technical Field
The utility model belongs to the technical field of building structure, concretely relates to steel sheet-super strength concrete combination shear wall structure.
Background
the steel plate concrete combined shear wall is a new type high-efficiency combined member developed in recent years, and is formed from external steel plate and internal concrete. Because the steel plate is laterally restrained by the filled concrete, the overall or local stability of the steel plate is improved, and the phenomenon that the steel plate is bent or bent locally too early is avoided; meanwhile, the steel plate can restrain the external expansion of the filled concrete, and the bearing and deformation capacity of the concrete is enhanced. Through the exertion of the combination effect, the steel plate concrete combined shear wall can fully exert the material performance of both steel and concrete. In addition, the outer steel plate can be used as a concrete pouring template in the construction stage, so that the construction period is greatly shortened, concrete cracks can be prevented from being exposed in the use stage, and corrosion of internal reinforcing steel bars is delayed. Due to the advantages, the steel plate concrete combined shear wall is more and more widely applied to super high-rise buildings. When the steel plate concrete combined shear wall is subjected to the action of plane bending moment, one side of the wall body is pulled, and the other side of the wall body is pressed, and the steel plate concrete combined shear wall and the filled concrete are jointly used for bearing. For the compression side, when the concrete at the wall end deforms to exceed the limit compression strain, the concrete is crushed, and the bearing capacity of the wall body is reduced. After the ultrahigh-strength concrete is adopted, the constraint effect of the steel plate on the concrete is reduced to some extent compared with that of the common concrete, so that the later-stage deformability of the combined shear wall is poor. For the reasons, the steel plate-ultrahigh strength concrete combined shear wall is difficult to popularize and apply in actual engineering.
SUMMERY OF THE UTILITY MODEL
the utility model aims to overcome prior art defect, provide a steel sheet-super strength concrete combination shear wall structure.
The technical scheme of the utility model as follows:
Steel sheet-super strength concrete combination shear wall structure, its characterized in that: comprises that
The steel box is a cuboid and is provided with a bottom plate, two opposite long side walls and two opposite thick side walls, and a plurality of bolt holes are uniformly distributed on the two long side walls;
The two steel supports respectively comprise an upper end plate, a lower end plate and a plurality of connecting steel pipes, the upper end plate and the lower end plate are fixedly connected through the plurality of connecting steel pipes, the upper end plate and the lower end plate are identical in shape and size, the width of the upper end plate and the width of the lower end plate are 4-6mm smaller than that of the inner cavity of the outsourcing steel box, and the length of the upper end plate and the length of the lower end plate are 20-30% of that of the inner cavity of the outsourcing steel box;
And a plurality of bolts adapted to the plurality of bolt holes;
Two steel support places the length direction's of outsourcing steel box both ends in the inner chamber bottom behind the complete cladding sealing material, and the super high strength concrete has been pour in the outsourcing steel box, two long lateral walls of outsourcing steel box link to each other through above-mentioned a plurality of bolts, and the centre-to-centre spacing of adjacent bolt hole is not less than 3 times of the diameter of bolt hole and is not more than 300 mm.
In a preferred embodiment of the present invention, the thickness of the bottom plate, the long side wall and the thick side wall of the steel outsourcing box is 10 to 25 mm.
in a preferred embodiment of the present invention, the thickness of the upper and lower end plates of the steel support is 30 to 35 mm.
In a preferred embodiment of the present invention, the total area of the cross-sections of the plurality of connecting steel pipes of each steel support is 30 to 35% of the area of the upper end plate.
in a preferred embodiment of the present invention, the height of the steel support is 1.0 to 1.5 times the width of the outer steel casing.
the utility model has the advantages that:
1. The utility model discloses a steel support has been set up in the marginal component of steel sheet-superhigh strength concrete combination shear wall structure, when the combination shear wall bears great plane bending moment, the deformation of shear wall tip is undertaken by steel support, avoids the concrete of tip to be conquashed, has guaranteed combination shear wall still possesses higher bearing capacity under great deformation condition.
2. The utility model discloses a steel support can play the effect of dissipation energy when the earthquake takes place to the anti-seismic performance of steel sheet-super strength concrete composite shear wall has been improved.
Drawings
fig. 1 is a front view of the steel plate-ultrahigh strength concrete composite shear wall structure of the present invention.
Fig. 2 is a top view of the steel plate-ultrahigh strength concrete composite shear wall structure of the present invention.
Fig. 3 is a longitudinal sectional view of the steel plate-ultra-high strength concrete composite shear wall structure of the present invention.
Fig. 4 is a schematic perspective view of a steel support according to the present invention.
Fig. 5 is a front view of a steel support in the present invention.
Fig. 6 is a schematic cross-sectional view of a steel support according to the present invention.
Detailed Description
the technical solution of the present invention will be further illustrated and described by the following specific embodiments.
as shown in fig. 1 to 3, a steel plate-ultra-high strength concrete composite shear wall structure includes an outer steel casing 1, two steel supports 2 and a plurality of bolts 3.
the steel-clad box 1 is a cuboid and is provided with a bottom plate 10 made of Q345 steel, two opposite long side walls 11 and two opposite thick side walls 12, wherein a plurality of bolt holes 110 are uniformly distributed on the two long side walls 11, and the thicknesses of the bottom plate 10, the long side walls 11 and the thick side walls 12 are 10-25 mm;
Two steel supports 2, as shown in fig. 4 and 5, each of which comprises an upper end plate 21, a lower end plate 22 and a plurality of connecting steel pipes 23 made of Q235 steel, wherein the upper end plate 21 and the lower end plate 22 are fixedly connected (welded) through the plurality of connecting steel pipes 23, the upper end plate 21 and the lower end plate 22 have the same shape and size, the thicknesses of the upper end plate 21 and the lower end plate 22 are 30-35mm, the widths of the upper end plate 21 and the lower end plate 22 are 4-6mm smaller than the width of the inner cavity of the outer-coated steel box 1, the lengths of the upper end plate 21 and the lower end plate 22 are 20-30% of the length of the inner cavity of the outer-coated steel box 1, and the height of the steel support 2 is 1.0-1.5 times of the; preferably, as shown in fig. 4 to 6, the number of the connecting steel pipes 23 is eight, and the connecting steel pipes are equally divided into two parallel rows, which are respectively connected with the upper end plate 21 and the lower end plate 22, each row is arranged along the length direction of the upper end plate 21, and a gap 24 is formed between two adjacent connecting steel pipes 23;
And a plurality of bolts 3 fitted to the plurality of bolt holes 110;
The two steel supports 2 are completely coated with FRP cloth and then are arranged at two ends of the length direction of the bottom of the inner cavity of the outer steel box 1, and ultrahigh-strength concrete 4 with the grade of C150 or above is poured in the outer steel box 1, so that when the outer steel box 1 is subjected to the action of bending moment in a larger plane, the deformation of the compression side is mainly concentrated on the steel supports 2, the ultrahigh-strength concrete 4 at the compression side is prevented from reaching the ultimate compression strain, the ultrahigh-strength concrete 4 is prevented from being crushed, the shear wall can have good bearing capacity under larger deformation, in addition, the steel supports 2 can play a role of dissipating energy during earthquake, and the earthquake resistance of the combined shear wall is enhanced; two long lateral walls 11 of outsourcing steel box 1 link to each other through above-mentioned a plurality of bolts 3 and prevent that two long lateral walls 11 from buckling outward, and the centre-to-centre spacing of adjacent bolt hole 110 is not less than 3 times of the diameter of bolt hole 110 and is not more than 300mm, and the total area of the cross section (not including the cavity area of connecting steel pipe 23) of a plurality of connecting steel pipes 23 of each steel support 2 is 30-35% of the area of upper end plate 21, in order to guarantee before the super high strength concrete reaches ultimate compressive strain, connecting steel pipe 23 in the steel support 2 has all entered the yield stage.
the specific construction method comprises the following steps:
Processing an outer-coated steel box 1 and a steel support 2 in a factory; wrapping and sealing four side surfaces of the steel support 2 by FRP cloth; placing the sealed steel support 2 at two ends of the length direction of the bottom of the inner cavity of the outer steel-coated box 1;
Installing the bolts 3 in two batches, wherein the bolts 3 in the first batch are arranged on the wall part of the steel plate-ultrahigh strength concrete 4 combined shear wall structure outside the steel support 2 and are installed before the ultrahigh strength concrete 4 is poured, and the bolts 3 in the second batch are arranged in the gap 24 of the connecting steel pipe 23 inside the steel support 2 and are installed after the ultrahigh strength concrete 4 is hardened; the specific installation is as follows: at first the first batch of bolt 3 of installation to plug up the bolt hole 110 of the time bolt 3 of second batch with the foam, pour super strength concrete 4 after that, treat super strength concrete 4 sclerosis, accomplish promptly after installing the second batch of bolt 3 the utility model discloses a construction.
The above description is only a preferred embodiment of the present invention, and therefore the scope of the present invention should not be limited by this description, and all equivalent changes and modifications made within the scope and the specification of the present invention should be covered by the present invention.
Claims (5)
1. Steel sheet-super strength concrete combination shear wall structure, its characterized in that: comprises that
The steel box is a cuboid and is provided with a bottom plate, two opposite long side walls and two opposite thick side walls, and a plurality of bolt holes are uniformly distributed on the two long side walls;
The two steel supports respectively comprise an upper end plate, a lower end plate and a plurality of connecting steel pipes, the upper end plate and the lower end plate are fixedly connected through the plurality of connecting steel pipes, the upper end plate and the lower end plate are identical in shape and size, the width of the upper end plate and the width of the lower end plate are 4-6mm smaller than that of the inner cavity of the outsourcing steel box, and the length of the upper end plate and the length of the lower end plate are 20-30% of that of the inner cavity of the outsourcing steel box;
And a plurality of bolts adapted to the plurality of bolt holes;
Two steel support places the length direction's of outsourcing steel box both ends in the inner chamber bottom behind the complete cladding sealing material, and the super high strength concrete has been pour in the outsourcing steel box, two long lateral walls of outsourcing steel box link to each other through above-mentioned a plurality of bolts, and the centre-to-centre spacing of adjacent bolt hole is not less than 3 times of the diameter of bolt hole and is not more than 300 mm.
2. The steel plate-ultrahigh strength concrete composite shear wall structure of claim 1, wherein: the thickness of the bottom plate, the long side wall and the thick side wall of the steel-coated box is 10-25 mm.
3. The steel plate-ultrahigh strength concrete composite shear wall structure of claim 1, wherein: the thickness of the upper end plate and the lower end plate of the steel support is 30-35 mm.
4. The steel plate-ultrahigh strength concrete composite shear wall structure of claim 1, wherein: the total area of the cross sections of the connecting steel pipes of each steel support is 30-35% of the area of the upper end plate.
5. the steel plate-ultrahigh strength concrete composite shear wall structure of claim 1, wherein: the height of the steel support is 1.0-1.5 times of the width of the steel box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920137724.9U CN209779951U (en) | 2019-01-25 | 2019-01-25 | steel plate-ultrahigh-strength concrete combined shear wall structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920137724.9U CN209779951U (en) | 2019-01-25 | 2019-01-25 | steel plate-ultrahigh-strength concrete combined shear wall structure |
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| CN209779951U true CN209779951U (en) | 2019-12-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653402A (en) * | 2019-01-25 | 2019-04-19 | 华侨大学 | A kind of steel plate-ultra high strength concrete combined shear wall construction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653402A (en) * | 2019-01-25 | 2019-04-19 | 华侨大学 | A kind of steel plate-ultra high strength concrete combined shear wall construction |
| CN109653402B (en) * | 2019-01-25 | 2024-02-27 | 华侨大学 | Steel plate-ultra-high strength concrete combined shear wall structure |
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