CN111042382B - Profile steel concrete shear wall structure with fuse - Google Patents
Profile steel concrete shear wall structure with fuse Download PDFInfo
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- CN111042382B CN111042382B CN202010014070.8A CN202010014070A CN111042382B CN 111042382 B CN111042382 B CN 111042382B CN 202010014070 A CN202010014070 A CN 202010014070A CN 111042382 B CN111042382 B CN 111042382B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 92
- 239000010959 steel Substances 0.000 title claims abstract description 92
- 239000004567 concrete Substances 0.000 title claims abstract description 12
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 21
- 230000009471 action Effects 0.000 abstract description 8
- 230000005489 elastic deformation Effects 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 abstract description 2
- 230000004075 alteration Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Abstract
The invention discloses a profile steel concrete shear wall structure provided with a fuse, and relates to the technical field of building structures. The built-in section steel at two ends of the concrete shear wall is connected at the footing part through a connecting plate. The connecting plate adopts high-strength steel, and utilizes the elastic deformation capability of the high-strength steel to fully exert the energy consumption mechanism of the connecting beam under the action of small and medium earthquakes. Meanwhile, the ultimate strength of the connecting plate is lower than the yield strength of the built-in section steel, so that the damage under the action of wall body large vibration is concentrated at the connecting plate, and the connecting plate plays a role of a fuse. The steel reinforced concrete shear wall structure provided with the fuse can achieve the aims of controllable damage position and easiness in repairing.
Description
Technical Field
The invention relates to the technical field of building structures, in particular to a section steel concrete shear wall structure.
Background
The randomness of the seismic action and the limited human resources make it impossible to use the resources without limitation to achieve a structure that does not break under strong shocks. The existing anti-seismic design concept takes life protection as a primary aim, and brittle failure and even collapse of the structure under the action of an earthquake are avoided through ductile design, so that possibility is provided for escape. The past earthquake damage shows that the collapse and the casualties of the structure are controlled to a certain extent, but the economic loss is extremely huge, and the economic loss mainly comprises the repairing and rebuilding cost of the structure after earthquake and the economic loss caused by the interruption of the using function of the building due to the long repairing and rebuilding period. With the development and the deep development of engineering anti-seismic design research, the important development trend of the engineering anti-seismic design research is gradually changed from preventing the collapse of the structure to the controllability and the restorability of the structure.
The section steel concrete shear wall structure is used as an efficient lateral force resisting system and is widely applied to high-rise building structures. The feet and the connecting beams of the shear wall are often severely damaged in an earthquake, and repair after the earthquake is difficult. How to realize the controllable and easy restoration of the structural failure position of the section steel concrete shear wall is a technical problem to be solved urgently by the person skilled in the art.
Disclosure of Invention
The invention aims to provide a section steel concrete shear wall structure.
The technical scheme adopted for achieving the purpose of the invention is that the profile steel concrete shear wall structure comprises a reinforced concrete shear wall, built-in profile steel I, a wall foot connecting node, a wall foot and built-in profile steel II.
The reinforced concrete shear wall is connected with the footing through integral casting, two vertical built-in section steel I are embedded in the reinforced concrete shear wall, and the two built-in section steel I are respectively close to two vertical edges of the reinforced concrete shear wall.
Two built-in section steels II are embedded in the basement, the upper ends of the two built-in section steels II extend out of the upper surface of the basement, the two built-in section steels II are respectively located right below the two built-in section steels I, and a gap exists between each built-in section steel II and the built-in section steel I right above each built-in section steel II.
Each built-in section steel II is connected with the built-in section steel I right above the built-in section steel II through a basement connecting node, and the connecting node is completely exposed. The connecting node comprises a plurality of connecting plates and a plurality of high-strength bolts, and the connecting plates are provided with a plurality of bolt holes through which the high-strength bolts pass.
The built-in section steel I and the built-in section steel II are I-shaped steel or H-shaped steel with matched sizes, the built-in section steel I comprises a web plate I and two flanges I, and a plurality of bolt holes for high-strength bolts to pass through are formed in the lower end of the web plate I and the lower ends of the two flanges I. The built-in section steel II comprises a web plate II and two flanges II, wherein a plurality of bolt holes for high-strength bolts to pass through are formed in the lower end of the web plate II and the upper ends of the two flanges II.
The web I and web II's department of bordering is provided with two connecting plates, and these two connecting plates are located the both sides of web I respectively, and the upper end of these two connecting plates all laminates with web I, and the lower extreme all laminates with web II, and a plurality of high strength bolts pass the bolt hole of these two connecting plates upper end and the bolt hole of web I, and a plurality of high strength bolts pass the bolt hole of these two connecting plates lower extreme and the bolt hole of web II.
The connecting plate is arranged at the junction of each flange I and a flange II right below the connecting plate, the upper end of the connecting plate is attached to the outer side of the flange I, the lower end of the connecting plate is attached to the outer side of the flange II, a plurality of high-strength bolts penetrate through the bolt holes of the upper end of the connecting plate and the bolt holes of the flange I, and a plurality of high-strength bolts penetrate through the bolt holes of the lower end of the connecting plate and the bolt holes of the flange II.
Each high-strength bolt is screwed into a nut.
Furthermore, the connecting plate is made of high-strength steel, and the ultimate strength of the connecting plate is lower than the yield strength of the built-in section steel I and the built-in section steel II.
The invention has the beneficial effects that:
1. The connecting plate plays a role of a fuse, main damage of the wall body is concentrated at the connecting plate under the action of an earthquake, and the reinforced concrete shear wall and the built-in section steel are basically in an elastic stage, so that the aim of controllable damage position is fulfilled;
2. The connecting plate is exposed, so that the replaceable operability after earthquake is high, and the repairability is improved;
3. After the connecting plate is replaced, the shear wall is restored to the original position under the action of dead weight, so that the self-resetting of the structure is realized.
Drawings
FIG. 1 is a schematic view of a steel reinforced concrete shear wall structure provided with fuses according to the present invention;
FIG. 2 is a schematic view of a basement connection node;
fig. 3 is a cross-sectional view of a basement connection node.
In the figure: the reinforced concrete shear wall 1, built-in section steel I2, a basement connecting node 3, a connecting plate 31, high-strength bolts 32, a basement 4 and built-in section steel II 5.
Detailed Description
The present invention is further described below with reference to examples, but it should not be construed that the scope of the above subject matter of the present invention is limited to the following examples. Various substitutions and alterations are made according to the ordinary skill and familiar means of the art without departing from the technical spirit of the invention, and all such substitutions and alterations are intended to be included in the scope of the invention.
Example 1:
the embodiment discloses a shaped steel concrete shear wall structure, including reinforced concrete shear wall 1, built-in shaped steel I2, heel connected node 3, heel 4 and built-in shaped steel II 5.
Referring to fig. 1, the reinforced concrete shear wall 1 is connected with the footing 4 through integral casting, two vertical built-in section steel i2 are embedded in the reinforced concrete shear wall 1, and the two built-in section steel i2 are respectively close to two vertical edges of the reinforced concrete shear wall 1.
Two built-in section steels II 5 are embedded in the basement 4, the upper ends of the two built-in section steels II 5 extend out of the upper surface of the basement 4, the two built-in section steels II 5 are respectively located under the two built-in section steels I2, and a gap exists between each built-in section steel II 5 and the built-in section steel I2 right above the built-in section steels II 5.
In the pouring process of the reinforced concrete shear wall 1, two notches for installing the heel connecting node 3 are reserved at the lower end of the reinforced concrete shear wall 1, so that the reinforced concrete shear wall 1 is T-shaped; the lower ends of the two built-in section steels I2 penetrate through the lower surface of the reinforced concrete shear wall 1 and then extend into the corresponding gaps, and the upper ends of the two built-in section steels II 5 extend out of the upper surface of the basement 4 and then extend into the corresponding gaps.
Referring to fig. 1, each of the built-in section steels ii 5 is connected with the built-in section steel i 2 directly above the built-in section steel ii through the basement connecting node 3, the basement connecting node 3 is completely exposed, and the replaceability after earthquake is high. The basement connecting node 3 comprises a plurality of connecting plates 31 and a plurality of high-strength bolts 32, and the connecting plates 31 are provided with bolt holes through which the high-strength bolts 32 penetrate.
The built-in section steel I2 and the built-in section steel II 5 are I-steel or H-steel with matched sizes, the built-in section steel I2 comprises a web plate I and two flanges I, and the lower ends of the web plate I and the lower ends of the two flanges I are respectively provided with a plurality of bolt holes through which high-strength bolts 32 pass. The built-in section steel II 5 comprises a web plate II and two flanges II, and a plurality of bolt holes for high-strength bolts 32 to pass through are formed in the lower end of the web plate II and the upper ends of the two flanges II.
Referring to fig. 3, two connecting plates 31 are disposed at the junction of the web plate i and the web plate ii, the two connecting plates 31 are respectively located at two sides of the web plate i, the upper ends of the two connecting plates 31 are attached to the web plate i, the lower ends of the two connecting plates 31 are attached to the web plate ii, a plurality of high-strength bolts 32 pass through the bolt holes at the upper ends of the two connecting plates 31 and the bolt holes at the web plate i, and a plurality of high-strength bolts 32 pass through the bolt holes at the lower ends of the two connecting plates 31 and the bolt holes at the web plate ii.
Referring to fig. 2, a connection plate 31 is disposed at the junction of each of the flanges i and the flange ii directly below the connection plate, the upper end of the connection plate 31 is attached to the outer side of the flange i, the lower end is attached to the outer side of the flange ii, a plurality of high-strength bolts 32 pass through the bolt holes of the upper end of the connection plate 31 and the bolt holes of the flange i, and a plurality of high-strength bolts 32 pass through the bolt holes of the lower end of the connection plate 31 and the bolt holes of the flange ii.
Referring to fig. 2 or 3, each of the high strength bolts 32 is screwed into a nut.
The connecting plate 31 is made of high-strength steel, and the energy consumption mechanism of the connecting beam under the action of small and medium earthquakes is fully exerted by utilizing the elastic deformation capability of the high-strength steel.
The ultimate strength of the connecting plate 31 is lower than the yield strength of the built-in section steel I2 and the built-in section steel II 5, so that the damage under the action of wall body major vibration is concentrated at the connecting plate 31, the connecting plate 31 plays a role of a fuse, and the aim of controllable damage position is fulfilled.
Claims (2)
1. The utility model provides a shaped steel concrete shear force wall structure which characterized in that: the reinforced concrete shear wall comprises a reinforced concrete shear wall (1), built-in section steel I (2), a wall foot connecting node (3), a wall foot (4) and built-in section steel II (5);
The reinforced concrete shear wall (1) is connected with the footing (4) through integral pouring, two vertical built-in section steels I (2) are embedded in the reinforced concrete shear wall (1), and the two built-in section steels I (2) are respectively close to two vertical edges of the reinforced concrete shear wall (1);
two built-in section steels II (5) are embedded in the basement (4), the upper ends of the two built-in section steels II (5) extend out of the upper surface of the basement (4), the two built-in section steels II (5) are respectively located right below the two built-in section steels I (2), and a gap exists between each built-in section steel II (5) and the built-in section steel I (2) right above the built-in section steels II;
Each built-in section steel II (5) is connected with the built-in section steel I (2) right above the built-in section steel II through a basement connecting node (3), and the connecting node (3) is completely exposed; the connecting node (3) comprises a plurality of connecting plates (31) and a plurality of high-strength bolts (32), and the connecting plates (31) are provided with a plurality of bolt holes through which the high-strength bolts (32) penetrate;
The built-in section steel I (2) and the built-in section steel II (5) are I-shaped steel or H-shaped steel with matched sizes, the built-in section steel I (2) comprises a web plate I and two flanges I, and the lower ends of the web plate I and the lower ends of the two flanges I are respectively provided with a plurality of bolt holes for high-strength bolts (32) to pass through; the built-in section steel II (5) comprises a web plate II and two flanges II, wherein the lower end of the web plate II and the upper ends of the two flanges II are respectively provided with a plurality of bolt holes through which high-strength bolts (32) pass;
Two connecting plates (31) are arranged at the junction of the web I and the web II, the two connecting plates (31) are respectively positioned at two sides of the web I, the upper ends of the two connecting plates (31) are respectively attached to the web I, the lower ends of the two connecting plates are respectively attached to the web II, a plurality of high-strength bolts (32) penetrate through bolt holes at the upper ends of the two connecting plates (31) and bolt holes of the web I, and a plurality of high-strength bolts (32) penetrate through bolt holes at the lower ends of the two connecting plates (31) and bolt holes of the web II;
A connecting plate (31) is arranged at the junction of each flange I and a flange II right below the connecting plate, the upper end of the connecting plate (31) is attached to the outer side of the flange I, the lower end of the connecting plate is attached to the outer side of the flange II, a plurality of high-strength bolts (32) penetrate through bolt holes at the upper end of the connecting plate (31) and the bolt holes of the flange I, and a plurality of high-strength bolts (32) penetrate through bolt holes at the lower end of the connecting plate (31) and the bolt holes of the flange II;
each of the high strength bolts (32) is threaded into a nut.
2. The profiled steel concrete shear wall structure of claim 1, wherein: the connecting plate (31) is made of high-strength steel, and the ultimate strength of the connecting plate (31) is lower than the yield strength of the built-in section steel I (2) and the built-in section steel II (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010014070.8A CN111042382B (en) | 2020-01-07 | Profile steel concrete shear wall structure with fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010014070.8A CN111042382B (en) | 2020-01-07 | Profile steel concrete shear wall structure with fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111042382A CN111042382A (en) | 2020-04-21 |
| CN111042382B true CN111042382B (en) | 2024-06-04 |
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|---|---|---|---|---|
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| CN109208774A (en) * | 2018-07-22 | 2019-01-15 | 北京工业大学 | Self-resetting can assemble multistage beam shear wall steel frame after shake |
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| CN102535682A (en) * | 2012-02-16 | 2012-07-04 | 同济大学 | Replaceable connecting joint for wallboard components of precast concrete shear wall structures |
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| CN106639037A (en) * | 2017-01-23 | 2017-05-10 | 青岛理工大学 | Energy-dissipation and seismic-mitigation oblique prestress shear wall structural system suitable for prefabrication and assembly construction |
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| CN110453850A (en) * | 2019-07-22 | 2019-11-15 | 重庆大学 | A kind of assembled steel Combined concrete coupling beam |
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