CN207228402U - The reinforced concrete shear wall of built-in prestress steel diagonal brace - Google Patents

The reinforced concrete shear wall of built-in prestress steel diagonal brace Download PDF

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Publication number
CN207228402U
CN207228402U CN201720448951.4U CN201720448951U CN207228402U CN 207228402 U CN207228402 U CN 207228402U CN 201720448951 U CN201720448951 U CN 201720448951U CN 207228402 U CN207228402 U CN 207228402U
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China
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diagonal brace
built
reinforced concrete
steel
shear wall
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CN201720448951.4U
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钱凯
邓小芳
麦艺馨
王月明
罗达
滕晓丹
贺盛
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Guangxi University
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Guangxi University
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Abstract

Concrete construction technical field is the utility model is related to, specifically a kind of reinforced concrete shear wall of built-in prestress steel diagonal brace, including concrete walls branch, it is built in steel truss and prestress steel diagonal brace that concrete walls prop up, it is characterised in that:Prestress steel diagonal brace includes diagonal brace casing and deformed bar, steel truss both sides are reserved with the oblique through hole of opposite two couple respectively, same diagonal brace casing is penetrated in opposite oblique through hole, cross-like is formed between diagonal brace casing and is mutually staggered, diagonal brace casing side is reserved grouting duct and extended to outside concrete walls branch;Run through in diagonal brace casing into deformed bar, after deformed bar both ends apply prestressing force and anchor, the grouting duct to diagonal brace casing pours into slurry.The utility model combines prestressing technique and reinforced concrete composite structure technology, propose it is a kind of prevent crack from producing too early, be simple in structure, the reinforced concrete shear wall of safe and reliable new built-in prestress steel diagonal brace.

Description

The reinforced concrete shear wall of built-in prestress steel diagonal brace
Technical field
The present invention relates to concrete construction technical field, is specifically that a kind of armored concrete of built-in prestress steel diagonal brace is cut Power wall.
Background technology
As the fast development of Chinese national economy and the continuous of urbanization process are accelerated, Development of High-rise Buildings is rapid, and Shear wall is vertical structure component most basic in high building structure, is primarily subjected to the effect of horizontal force, is effectively anti- Side force component.But building height is constantly soaring, traditional shear wall has been difficult to meet building function requirement.
But steel reinforced concrete shear walls possess good bearing capacity and ductility, there is very big development potentiality.
Steel reinforced concrete shear walls have at home and abroad carried out substantial amounts of research, it turns out that shaped steel and concrete jointly by Power, possesses good bearing capacity and ductility, but under the repeated action of horizontal loading, steel reinforced concrete shear walls component surface Premature crack occur, crack constantly becomes larger under geological process, and damage aggravation, causes serious stiffness and strength to be degenerated.And in advance should Power concrete structure is due to restoring force performance after the development with control critical eigenvalue, the deformation of reduction structure load-bearing, improvement unloading etc. Feature, it is also more and more extensive in the application of engineering field, but prestressing force is combined with steel reinforced concrete shear walls and still suffers from construction Difficulty, complex structure and other problems.
The content of the invention
For above technological deficiency, it is an object of the invention to provide a kind of armored concrete of built-in prestress steel diagonal brace Shear wall, the present invention combine prestressing technique and reinforced concrete composite structure technology, propose that one kind prevents crack mistake Early generation, the reinforced concrete shear wall of simple in structure, safe and reliable new built-in prestress steel diagonal brace.
Technical scheme is as follows:
A kind of reinforced concrete shear wall of built-in prestress steel diagonal brace, including concrete walls branch, are built in concrete walls The steel truss and prestress steel diagonal brace of branch, it is characterised in that:The prestress steel diagonal brace includes diagonal brace casing and deformed bar, The steel truss both sides are reserved with the oblique through hole of opposite two couple respectively, are penetrated in the opposite tiltedly through hole same described oblique Support set pipe, forms cross-like between the diagonal brace casing and mutually staggers, and the diagonal brace casing side is reserved grouting duct and extended Outside to the concrete walls branch;Run through in diagonal brace casing applies pre- into the deformed bar, the deformed bar both ends After stress and anchoring, slurry is poured into the grouting duct of the diagonal brace casing.
By built-in prestress steel inclined support structure, diagonal brace sleeve is staggered into cross-like, mutually, the pre- of institute's tensioning can be made More effective prestressing force effect on the concrete of steel reinforced concrete shear walls, lifts prestressed utilization rate to stress.
Specifically, the diagonal brace casing is square steel casing, PVC casings or corrugated bushing one of which..
Specifically, the concrete walls branch is internally provided with distribution bar.
Specifically, the tiltedly through hole carries out reinforcement solutions.
By reinforcement solutions, ensure the integrality in duct and extend duct service life, enhancing structure anti-seismic performance.
Reinforcement solutions make it have security, durability and the applicability required by current designs specification and owner.
Specifically, the deformed bar is FRP tendons.
High using FRP tendons tensile strength, its tensile strength is obviously higher than reinforcing bar, and FRP material is to reach tension strong Before degree, produced almost without plastic deformation.
As preference, the steel truss is welded by channel steel, band steel and angle steel.
As preference, the slurry is cement mortar or pitch.
Specifically, it is post stretching to apply prestressing force mode, the deformed bar is anchored using gasket and double-deck nut.
Using post stretching, there is the characteristics of easy for construction, safe and reliable.
Specifically, the deformed bar for preventing concrete local pressure is provided with anchor.
The beneficial effect of the invention is:
(1)Prestressing technique and steel reinforced concrete are combined, steel reinforced concrete shear walls itself have preferable shock resistance Can, it is prestressed in the presence of preventing wall branch surface concrete crack from producing too early, cause damage to aggravate, serious stiffness and strength occurs Degenerate.Compared to other components, which has more preferable anti-seismic performance, can effectively delay wall crack in loading process Generation and development, to suppress Diagonal crack quantity, length and width have significant effect, with control stress for prestressing Increase, its effect is further notable.
(2)By built-in prestress steel inclined support structure, penetrate diagonal brace casing at steel truss both ends and allow diagonal brace casing to be formed Cross-like, mutually stagger, and is then arranged in diagonal brace casing and sets deformed bar to anchor, simple in structure so that tensioning works Securely and reliably, can be realized by gasket and the simple standard component of nut, and it is stronger to the controlling of prestressing force size.
(3)Grouting works are more convenient, and grouting material can be according to Practical Project situation, combination member energy consumption with shell material Ability uses different schemes from economy.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of the reinforced concrete shear wall of built-in prestress steel diagonal brace of the embodiment of the present invention 1;
Fig. 2 is a kind of left profile figure of the reinforced concrete shear wall of built-in prestress steel diagonal brace of the embodiment of the present invention 1;
Fig. 3 is a kind of top view of the reinforced concrete shear wall of built-in prestress steel diagonal brace of the embodiment of the present invention 1;
Fig. 4 is a kind of encased steel truss of the reinforced concrete shear wall of built-in prestress steel diagonal brace of the embodiment of the present invention 1 Figure.
Part name and sequence number in figure:
Concrete walls branch 1, steel truss 2, diagonal brace casing 3, deformed bar 4, distribution bar 5.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
As illustrated in the accompanying drawings from 1 to 3, the reinforced concrete shear wall of the built-in prestress steel diagonal brace of the present embodiment, including concrete Wall branch 1, is built in the steel truss 2 and prestress steel diagonal brace of concrete walls branch 1, prestress steel diagonal brace is including diagonal brace casing 3 and in advance Stress reinforcing bar 4, wherein as most preferably scheme, the diagonal brace casing 3 of the present embodiment uses PVC casings, and deformed bar 5 is using anti- The high FRP tendons of tensile strength, however it is not limited to this.
As shown in figure 4, being 2 stereogram of encased steel truss of the present embodiment, steel truss 2 utilizes channel steel, angle steel, band steel welding Form.
Local oblique through hole is reserved in 2 side of steel truss, facilitates insertion into diagonal brace casing 3, the reserved grouting duct of diagonal brace casing 3 is stretched Going out outside wall branch, the inside of diagonal brace casing 3 passes through deformed bar 4, and 4 bottom of deformed bar is lived using gasket with nut grappling, Top stretching certain length is easy to later stage prestressed stretch-draw;Distribution bar 5 is bound, template is bound, carries out pouring for concrete, shake Puddling is real;Treat that concrete reaches some strength, post stretching carries out unidirectional tensioning to the top of deformed bar 4, and tensioning reaches specific During value, lived using gasket, nut grappling;Tensioning finishes, using grouter by reserved grouting duct toward filling inside diagonal brace casing 3 Water filling cement mortar slurry.
Technical characteristic of the invention without description can realize that details are not described herein by or using the prior art, certainly, It is limitation of the present invention that described above, which is not, and the present invention is also not limited to the example above, the ordinary skill of the art The variations, modifications, additions or substitutions that personnel are made in the essential scope of the present invention, should also belong to the protection model of the present invention Enclose.

Claims (9)

1. a kind of reinforced concrete shear wall of built-in prestress steel diagonal brace, including concrete walls branch(1), it is built in concrete walls Branch(1)Steel truss(2)With prestress steel diagonal brace, it is characterised in that:The prestress steel diagonal brace includes diagonal brace casing(3)With it is pre- Stress reinforcing bar(4), the steel truss(2)Both sides are reserved with the oblique through hole of opposite two couple respectively, in the opposite tiltedly through hole Penetrate the same diagonal brace casing(3), the diagonal brace casing(3)Between formed and cross-like and mutually stagger, the diagonal brace set Pipe(3)Reserve grouting duct and extend to the concrete walls branch in side(1)It is exterior;In diagonal brace casing(3)Run through into it is described it is pre- should Power reinforcing bar(4), the deformed bar(5)After both ends apply prestressing force and anchor, to the diagonal brace casing(3)Grouting duct Pour into slurry.
A kind of 2. reinforced concrete shear wall of built-in prestress steel diagonal brace according to claim 1, it is characterised in that:Institute State diagonal brace casing(3)For square steel casing, PVC casings or corrugated bushing one of which.
3. a kind of reinforced concrete shear wall of built-in prestress steel diagonal brace according to claim 1 or 2, its feature exist In:The concrete walls branch(1)It is internally provided with distribution bar(5).
A kind of 4. reinforced concrete shear wall of built-in prestress steel diagonal brace according to claim 1, it is characterised in that:Institute State oblique through hole and carry out reinforcement solutions.
A kind of 5. reinforced concrete shear wall of built-in prestress steel diagonal brace according to claim 1, it is characterised in that:Institute State deformed bar(4)For FRP tendons.
A kind of 6. reinforced concrete shear wall of built-in prestress steel diagonal brace according to claim 1, it is characterised in that:Institute State steel truss(2)It is welded by channel steel, band steel and angle steel.
7. according to a kind of reinforced concrete shear wall of built-in prestress steel diagonal brace described in claim 1, it is characterised in that:It is described Slurry is cement mortar or pitch.
A kind of 8. reinforced concrete shear wall of built-in prestress steel diagonal brace according to claim 1, it is characterised in that:Apply Prestressing mode is post stretching, and the deformed bar is anchored using gasket and double-deck nut(4).
9. a kind of reinforced concrete shear wall of built-in prestress steel diagonal brace according to claim 1 or 8, its feature exist In:Being provided with anchor prevents the deformed bar of concrete local pressure.
CN201720448951.4U 2017-04-26 2017-04-26 The reinforced concrete shear wall of built-in prestress steel diagonal brace Active CN207228402U (en)

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CN201720448951.4U CN207228402U (en) 2017-04-26 2017-04-26 The reinforced concrete shear wall of built-in prestress steel diagonal brace

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Application Number Priority Date Filing Date Title
CN201720448951.4U CN207228402U (en) 2017-04-26 2017-04-26 The reinforced concrete shear wall of built-in prestress steel diagonal brace

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109610312A (en) * 2018-12-26 2019-04-12 北京工业大学 Prefabrication and assembly construction floorings based on the connection of X-type presstressed reinforcing steel
CN110409664A (en) * 2019-07-24 2019-11-05 中国十七冶集团有限公司 A kind of pre-stressed steel plate concrete shear wall structure
CN111173167A (en) * 2020-01-08 2020-05-19 东南大学 Method and structure for reinforcing shear wall by embedding high-strength self-stress concrete truss

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109610312A (en) * 2018-12-26 2019-04-12 北京工业大学 Prefabrication and assembly construction floorings based on the connection of X-type presstressed reinforcing steel
CN110409664A (en) * 2019-07-24 2019-11-05 中国十七冶集团有限公司 A kind of pre-stressed steel plate concrete shear wall structure
CN111173167A (en) * 2020-01-08 2020-05-19 东南大学 Method and structure for reinforcing shear wall by embedding high-strength self-stress concrete truss

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