CN106930437B - Reinforced concrete shear wall with built-in horizontal diagonal braces - Google Patents
Reinforced concrete shear wall with built-in horizontal diagonal braces Download PDFInfo
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- CN106930437B CN106930437B CN201710283478.3A CN201710283478A CN106930437B CN 106930437 B CN106930437 B CN 106930437B CN 201710283478 A CN201710283478 A CN 201710283478A CN 106930437 B CN106930437 B CN 106930437B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
- E04B2/58—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention relates to the technical field of concrete construction, in particular to a reinforced concrete shear wall with a built-in horizontal diagonal brace, which comprises a concrete wall support, a steel truss built-in the concrete wall support and a prestressed horizontal diagonal brace, and is characterized in that: the prestress horizontal diagonal bracing comprises horizontal steel sleeves, hoses and prestress steel bars, opposite through holes are reserved in two sides of a steel truss, the horizontal steel sleeves are respectively penetrated into the through holes, the opposite horizontal steel sleeves are communicated with each other through the hoses, the same prestress steel bar is penetrated into the horizontal steel sleeves and the hoses, one ends of the prestress steel bars are anchored by gasket nuts, and the other ends of the prestress steel bars are applied to the outside of the concrete wall after extending to the outside and are anchored by the gasket nuts. The invention combines the prestress technology and the steel reinforced concrete combined structure technology, and provides a novel reinforced concrete shear wall with built-in horizontal diagonal braces, which limits crack development, improves the anti-seismic performance of a shear wall component, has an optimized structure and is simple to operate.
Description
Technical Field
The invention relates to the technical field of concrete buildings, in particular to a reinforced concrete shear wall with a built-in horizontal diagonal brace.
Background
Along with the rapid development of national economy and the continuous acceleration of urban process in China, the development of high-rise buildings is rapid, and the shear wall is the most basic vertical structural member in the high-rise building structure and mainly bears the action of horizontal force, thus being an effective lateral force resisting member. However, building height is continuously increased, the traditional shear wall is difficult to meet building function requirements, the section steel concrete shear wall has good bearing capacity and ductility and great development potential, but cracks are easy to appear in concrete on the surface of the section steel concrete shear wall component in the earthquake action process, the cracks are continuously developed in the earthquake process, damage is aggravated, and the earthquake resistance is greatly reduced. The prestress can effectively limit the generation and development of cracks of the concrete structure and improve the restorative performance of the structure after unloading, and domestic and foreign scholars have studied the prestress in a large amount, but the application of the prestress in the field of the section steel concrete shear wall still has the structure form and the difficult problem in the aspect of construction process.
Disclosure of Invention
Aiming at the technical defects, the invention aims to provide a reinforced concrete shear wall with a built-in horizontal diagonal brace, combines a prestress technology and a section steel concrete combined structure technology, and provides a novel reinforced concrete shear wall with a built-in horizontal diagonal brace, which is used for limiting crack development and improving the anti-seismic performance of a shear wall component, has an optimized structure and is simple to operate.
The technical scheme of the invention is as follows:
the utility model provides a built-in horizontal bracing's reinforced concrete shear force wall, includes concrete wall branch, built-in steel truss and the horizontal bracing of prestressing force at concrete wall branch, its characterized in that: the prestress horizontal diagonal bracing comprises horizontal steel sleeves, hoses and prestress steel bars, opposite through holes are reserved in two sides of the steel truss, the horizontal steel sleeves penetrate through the through holes respectively, the opposite horizontal steel sleeves are communicated with each other through the hoses, the same prestress steel bars penetrate through the horizontal steel sleeves and the hoses, one ends of the prestress steel bars are anchored by gasket nuts, and the other ends of the prestress steel bars extend to the outside of the concrete wall support and are then prestressed and anchored by the gasket nuts.
The middle part of the steel sleeve is connected by adopting a hose, so that the tensioned prestressing force can be more effectively acted on the concrete of the steel reinforced concrete shear wall, and the utilization rate of the prestressing force is improved.
Specifically, the outside of the hose is closely provided with a reinforcing steel bar which enables the hose to be kept horizontal.
Specifically, the concrete wall is internally provided with distributed steel bars.
Specifically, the through hole is subjected to reinforcement treatment.
Through reinforcement treatment, the integrity of the pore canal is ensured, the service life of the pore canal is prolonged, and the earthquake resistance of the structure is enhanced.
The reinforcement process provides it with the security, durability and applicability required by the current design specifications and owners.
Specifically, waterproof sealant is smeared at the joint of the horizontal steel sleeve and the hose.
Preferably, the prestressed reinforcement is a finish rolled deformed bar.
Preferably, the hose is a steel wire hose.
Preferably, the steel truss is formed by welding channel steel, flat steel and angle steel.
Specifically, the prestressing force adopts a post-tensioning unbonded method, and is tensioned once in one direction.
The post-tensioning unbonded method is used, grouting is not needed for the pore canal, the construction period is short, and the construction is convenient; the economy is good, the floor structure system is light, and the span is large; the prestress loss is relatively small.
The beneficial effects of the invention are as follows:
(1) The cracking load of the steel reinforced concrete shear wall is effectively improved, the remarkable effect of limiting crack generation and development is achieved, and sensory comfort is brought to people.
(2) Because the generation and development of cracks are limited, the damage of concrete in the earthquake action process is reduced, the energy consumption capacity of the steel reinforced concrete shear wall member is greatly improved, and the earthquake resistance of the structure is enhanced.
(3) The middle part of the sleeve is connected by adopting a steel wire hose, so that the tensioned prestress can be more effectively acted on the concrete of the steel reinforced concrete shear wall, and the utilization rate of the prestress is improved.
(4) The pre-stressing tensioning can be realized by using the simple standard parts of the gaskets and the nuts, the construction is simple, the one-way tensioning is performed once, the inside of the pore canal is not grouted, and the pre-stressing overhaul, the replacement and the withdrawal of the shear wall component in the future are convenient.
Drawings
FIG. 1 is a schematic structural view of a reinforced concrete shear wall with built-in horizontal diagonal braces according to embodiment 1 of the present invention;
FIG. 2 is a left cross-sectional view of a reinforced concrete shear wall with built-in horizontal braces according to example 1 of the present invention;
FIG. 3 is a top view of a reinforced concrete shear wall with built-in horizontal braces according to example 1 of the present invention;
fig. 4 is a view of a built-in steel truss of a reinforced concrete shear wall with built-in horizontal diagonal braces according to embodiment 1 of the present invention.
Part name and number in the figure:
the concrete wall support 1, the steel truss 2, the horizontal steel sleeve 3, the hose 4, the prestressed reinforcement 5 and the distributed reinforcement 6.
Detailed Description
The invention is further described below with reference to the drawings and examples.
As shown in fig. 1-3, the section steel concrete shear wall of the embodiment comprises a concrete wall support 1, a steel truss 2 and a prestressed horizontal diagonal brace, wherein the steel truss 2 and the prestressed horizontal diagonal brace are arranged in the concrete wall support 1, the prestressed horizontal diagonal brace comprises a horizontal steel sleeve 3, a hose 4 and prestressed steel bars 5, wherein the hose 4 is preferably a steel wire hose, and the prestressed steel bars 5 are preferably finish-rolled screw steel.
As shown in fig. 4, in this embodiment, the steel truss 2 is welded by using channel steel, angle steel, and flat steel, as a perspective view of the built-in steel truss 2.
Circular through holes are reserved at corresponding positions on two sides of the steel truss 2 to form pore channels, two sides of each pore channel respectively penetrate into the horizontal steel sleeve pipes 3, the two horizontal steel sleeve pipes 3 are not connected in the middle of the concrete wall support 1, the disconnected part is connected with the steel wire hose 4, waterproof sealing materials are coated at the interface, and the outer part of the hose 4 is tightly attached to straight steel bars to keep the steel bars horizontally unbent; penetrating prestressed steel bars 5 into reserved pore channels, binding fixedly distributed steel bars 6, reserving a protective layer support template outside the concrete wall support 1, pouring the concrete wall support 1, and vibrating compactly; when the concrete wall support 1 is hardened to reach a certain strength, one end of the prestressed reinforcement 3 is fixed through a gasket nut anchorage device, the other end of the prestressed reinforcement is stretched unidirectionally once, the prestressed reinforcement reaches a preset value, the nut is fastened by using a stretching steel stool, grouting is not needed in a pore canal after stretching, and the prestressed reinforcement can be reinforced and repaired or can be selected to exit according to actual engineering conditions.
The technical features of the present invention that are not described in the present invention may be implemented by or using the prior art, and are not described in detail herein, but the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, but is also intended to be within the scope of the present invention by those skilled in the art.
Claims (4)
1. The utility model provides a built-in horizontal bracing's reinforced concrete shear force wall, includes concrete wall branch (1), embeds steel truss (2) and the horizontal bracing of prestressing force at concrete wall branch (1), its characterized in that: the concrete wall support (1) is internally provided with distributed steel bars (6); the steel truss (2) is formed by welding channel steel, flat steel and angle steel, the prestress horizontal diagonal bracing comprises horizontal steel sleeves (3), hoses (4) and prestress steel bars (5), opposite through holes are reserved on two sides of the steel truss (2), the horizontal steel sleeves (3) are respectively penetrated into the through holes, the opposite horizontal steel sleeves (3) are communicated with each other through the hoses (4), and the hoses (4) are steel wire hoses; the outside of the hose (4) is tightly attached with a reinforcing steel bar for keeping the hose horizontal; the joint of the horizontal steel sleeve (3) and the hose (4) is smeared with waterproof sealant; the concrete wall support is characterized in that the same prestressed reinforcement (5) is penetrated into the horizontal steel sleeve (3) and the hose (4) which are penetrated, one end of the prestressed reinforcement (5) is anchored by a gasket nut, the other end of the prestressed reinforcement extends to the outside of the concrete wall support (1), then the prestressed reinforcement is applied and is anchored by the gasket nut, and the insides of the inner pore channels of the horizontal steel sleeve (3) and the hose (4) are of a grouting-free structure.
2. The reinforced concrete shear wall with built-in horizontal diagonal braces according to claim 1, wherein: and reinforcing the through hole.
3. The reinforced concrete shear wall with built-in horizontal diagonal braces according to claim 1, wherein: the prestressed reinforcement (5) is finish-rolled deformed steel bar.
4. The reinforced concrete shear wall with built-in horizontal diagonal braces according to claim 1, wherein: the prestress adopts a post-tensioning unbonded method, and is tensioned unidirectionally at one time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710283478.3A CN106930437B (en) | 2017-04-26 | 2017-04-26 | Reinforced concrete shear wall with built-in horizontal diagonal braces |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710283478.3A CN106930437B (en) | 2017-04-26 | 2017-04-26 | Reinforced concrete shear wall with built-in horizontal diagonal braces |
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| Publication Number | Publication Date |
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| CN106930437A CN106930437A (en) | 2017-07-07 |
| CN106930437B true CN106930437B (en) | 2023-05-26 |
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| CN201710283478.3A Active CN106930437B (en) | 2017-04-26 | 2017-04-26 | Reinforced concrete shear wall with built-in horizontal diagonal braces |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111335508B (en) * | 2020-01-10 | 2021-07-30 | 中国十七冶集团有限公司 | Built-in prestressed reinforcement's combination formula steel sheet concrete shear force wall |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2778922Y (en) * | 2005-01-25 | 2006-05-10 | 孙广秀 | Anti-vibration device for brick wall |
| CN104895224A (en) * | 2015-06-30 | 2015-09-09 | 郑州大学 | Prestressed loam wall and construction process thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB712674A (en) * | 1952-09-25 | 1954-07-28 | Stent Precast Concrete Ltd | Improvements in prestressed concrete piles |
| CN202990170U (en) * | 2012-12-06 | 2013-06-12 | 郑州大学 | Shear wall structure collocating cross oblique internal prestress |
| CN103866882A (en) * | 2014-03-06 | 2014-06-18 | 东南大学 | Post-tensioned prestressing self centering steel plate shear wall structure |
| CN206971470U (en) * | 2017-04-26 | 2018-02-06 | 广西大学 | The reinforced concrete shear wall of built-in horizontal diagonal brace |
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2017
- 2017-04-26 CN CN201710283478.3A patent/CN106930437B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2778922Y (en) * | 2005-01-25 | 2006-05-10 | 孙广秀 | Anti-vibration device for brick wall |
| CN104895224A (en) * | 2015-06-30 | 2015-09-09 | 郑州大学 | Prestressed loam wall and construction process thereof |
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