CN204850152U - Vertical connection preloading device of precast concrete shear force wall - Google Patents
Vertical connection preloading device of precast concrete shear force wall Download PDFInfo
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- CN204850152U CN204850152U CN201520522352.3U CN201520522352U CN204850152U CN 204850152 U CN204850152 U CN 204850152U CN 201520522352 U CN201520522352 U CN 201520522352U CN 204850152 U CN204850152 U CN 204850152U
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- shear wall
- shear force
- anchor bar
- force wall
- pier nose
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Abstract
The utility model discloses a vertical connection preloading device of precast concrete shear force wall belongs to prefabricated prefabricated concrete structure field. The device includes pretension connecting piece, pier nose anchor reinforcing bar, straight thread anchor reinforcing bar, wire spiral, bearing pad piece and pretension hexagon nut. The pretension connecting piece overlaps in pier nose anchor reinforcing bar pier nose one side and anchor in upper portion shear force wall, straight thread anchor steel bar anchoring in lower part shear force wall. Straight thread anchor reinforcing bar passed the pretension connecting piece when the vertical connection of shear force wall was assembled from top to bottom to use the hexagon nut pretension, the horizontal piece of shear force wall produces the pretightning force about making. The utility model discloses guarantee the construction quality of precast concrete shear force wall, increased the vertical joint strength between the wall body, prevented effectively that the shear force wall from the shearing appearing at horizontal seam crossing and sliding and ftracture, improved the wholeness and the anti -seismic performance of assembled concrete shear force wall.
Description
Technical field
The utility model relates to prefabricated assembled concrete construction applications, and specifically a kind of precast concrete shear wall vertically connects pre-tightening apparatus.
Background technology
Prefabricated assembled concrete structure have be convenient to factorial praluction, job site noise dust pollution low, save labor cost, the plurality of advantages such as efficiency of construction is high, control of product quality is better.Along with the quickening of China's " industrialization of construction industry, housing industrialization " process, prefabricated assembled concrete structure will be widely used in building construction.
Prefabricated assembled concrete shear wall structure, as the one of prefabricated assembled concrete structural system, has good anti-seismic performance, has good application prospect.Prefabricated assembled concrete shear wall structure is by prefabrication concrete wall, and it is assembled that body of wall layering is carried out according to floor in job site, finally forms shear wall structure stress system.When body of wall layering is assembled, levels precast wall body vertically connect conventional method mainly contain steel bushing grouting connect with slurry anchor be connected two kinds of wet connected modes.The common ground of these two kinds of connected modes is that the overhanging reinforcing bar in lower floor's precast shear wall body top to insert bottom the precast shear wall body of upper strata in pre-buried steel bushing or reserving hole, then slip casting in steel bushing or reserving hole, levels wall steel bar in slurry and steel bushing or reserving hole produces bond stress, makes upper and lower two-layer wall connecting become overall.
Therefore, sleeve grouting connects the construction quality being connected slip casting with slurry anchor becomes the important factor in order affecting levels shear wall bonding strength and structural system overall performance.But, due to these two kinds of wet connected modes all need close steel bushing or hole in slip casting, usually occur that slip casting effect is bad, after slip casting quality examination difficulty etc. problem, make grouting quality be difficult to ensure.In addition, above-mentioned two kinds of methods of attachment are that levels shear wall links together by passive dependence slip casting position, and the horizontal piece that upper and lower body of wall is formed becomes the stressed weak part of fabricated shear wall structure.External several seimic disaster census finds, prefabricated assembled shear wall structure horizontal edge joint position under geological process there will be the destructions such as larger shearing slip, cracking.
To sum up, be necessary to develop the vertical method of attachment of a kind of precast concrete shear wall, reduce the construction quality risk of prefabricated assembled shear wall structure, increase the globality of structure and improve the anti-seismic performance of structure.
Summary of the invention
The purpose of this utility model is to provide the vertical linkage of a kind of precast concrete shear wall, solves the deficiency that current prefabricated assembled concrete parts of shear wall structure wall body vertically connects existence, improves its construction quality, increases globality and the anti-seismic performance of structure.
To achieve these goals, the utility model adopts following technical scheme to realize:
A kind of precast concrete shear wall vertically connects pre-tightening apparatus, and this device comprises pre-clamping joint, pier nose anchor bar, straight thread anchor bar, pressure-bearing pad, pretension hex nut, spiral stirrup.
The upper and lower of described pre-clamping joint is centre and opens round-meshed oval-shaped table, is formed between the oval-shaped table of top and the bottom by symmetrical two steel bars welding, bolt or one-body molded casting.
Described pier nose anchor bar is the indented bars of thick pier nose bottom being, the circular hole in the middle of the oval-shaped table of connector top passes, and centre adds pressure-bearing pad; When prefabricated top shear wall, pier nose anchor bar top peripheral arranges spiral stirrup, is anchored in the shear wall of top.
Described straight thread anchor bar is the indented bars of top with screw thread; When prefabricated bottom shear wall, straight thread anchor bar lower periphery arranges spiral stirrup, is anchored in the shear wall of bottom.
When described prefabricated top shear wall is vertically connected with bottom shear wall, while top shear wall being installed on above the shear wall of bottom, straight thread anchor bar top partially passes through circular hole in the middle part of the oval-shaped table of connector bottom with screw thread, then adds pad and installs pretension hex bolts additional; Screw pretension hex bolts, make upper and lower shear wall horizontal joint produce preload pressure; Finally fill installing hole with pea gravel concreten, by strength cement-based grouting material sealed horizontal seam.
Compared with prior art, the beneficial effect of the utility model generation is as follows:
1, shear wall vertically connects the dry type connection adopting pier nose anchor bar, connector, straight thread anchor bar three component combination up and down, and easy construction, construction quality is controlled.
2, pre-tightening apparatus is passed through in shear wall connection up and down, horizontal piece is made to produce precompression, improve the intensity that prefabricated assembled shear wall vertically connects horizontal joint position, the shearing slip under reduction geological process and the risk of cracking, improve globality and the anti-seismic performance of structure.
The utility model ensure that the construction quality of precast concrete shear wall, adds the vertical bonding strength between body of wall, effectively prevents shear wall from occurring shearing slip and cracking at horizontal joint place, improves globality and the anti-seismic performance of assembly concrete shear wall.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model precast concrete shear wall vertically connects pre-tightening apparatus.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is that the utility model precast concrete shear wall vertically connects pre-tightening apparatus structural representation pre-buried in the precast shear wall of upper and lower part.
Fig. 4 be the utility model precast concrete shear wall vertically connect pre-tightening apparatus upper and lower part precast shear wall vertically connect assembled after structural representation.
In figure: the pre-clamping joint of 1-, 2-pier nose anchor bar, 3-straight thread anchor bar, 4-pressure-bearing pad, 5-pretension hex nut, 6-spiral stirrup, 7-top shear wall, 8-bottom shear wall, 9-horizontal joint, 10-installing hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiment of the utility model is described in detail.
A kind of precast concrete shear wall vertically connects pre-tightening apparatus.As shown in Figure 1, this device comprises pre-clamping joint 1, pier nose anchor bar 2, straight thread anchor bar 3, pressure-bearing pad 4, pretension hex nut 5, spiral stirrup 6.
Composition graphs 1 and Fig. 2, the upper and lower of connector 1 is centre and opens round-meshed oval-shaped table, is formed between the oval-shaped table of top and the bottom by symmetrical two steel bars welding, bolt or one-body molded casting.
Composition graphs 1 and Fig. 3, pier nose anchor bar 2 for bottom be the indented bars of thick pier nose, pass from the circular hole in the middle of the oval-shaped table of pre-clamping joint 1 top, centre adds pressure-bearing pad 4; When utilizing concrete prefabricated top shear wall 7, pier nose anchor bar 2 top peripheral arranges spiral stirrup 6, during fluid concrete, pier nose anchor bar 2 and spiral stirrup 6 are cast in top shear wall 7, and at pre-clamping joint 1 and pier nose anchor bar 2 junction reserving installation hole 10, pre-clamping joint 1 is positioned at installing hole 10.
Composition graphs 1 and Fig. 3, straight thread anchor bar 3 is the indented bars of top with screw thread; When utilizing concrete prefabricated bottom shear wall 8, straight thread anchor bar 3 top exposes to bottom shear wall 8 with the part of screw thread, and lower periphery arranges spiral stirrup 6, and is cast in bottom shear wall 8.
Composition graphs 1, Fig. 3 and Fig. 4, when prefabricated top shear wall 7 is vertically connected with bottom shear wall 8, while top shear wall 7 being installed on above bottom shear wall 8, straight thread anchor bar 3 top partially passes through circular hole in the middle part of the oval-shaped table of connector 1 bottom with screw thread, then adds pressure-bearing pad 4 and installs pretension hex bolts 5 additional; Screw pretension hex bolts 5, make upper and lower shear wall horizontal joint 9 produce preload pressure; Finally fill installing hole 10, by strength cement-based grouting material sealed horizontal seam 9 with pea gravel concreten.
Composition graphs 3 and Fig. 4, precast concrete shear wall vertically connects pre-tightening apparatus, and the actual design of the layout quantity basis precast shear wall body of wall on top shear wall 7 and bottom shear wall 8 requires to determine.
Claims (4)
1. a precast concrete shear wall vertically connects pre-tightening apparatus, it is characterized in that: comprise pre-clamping joint (1), the upper and lower of described pre-clamping joint (1) is centre and opens round-meshed oval-shaped table, is formed between the oval-shaped table of upper and lower part by symmetrical two steel bars welding, bolt or one-body molded casting;
In the middle of described pre-clamping joint (1) top oval-shaped table, circular hole passes pier nose anchor bar (2), described pier nose anchor bar (2) for bottom be the indented bars of thick pier nose, its top is anchored in top shear wall (7);
In the middle of the oval-shaped table of described pre-clamping joint (1) bottom, circular hole passes straight thread anchor bar (3), and described straight thread anchor bar (3) is the indented bars of top with screw thread, and its underpart is anchored in bottom shear wall (8);
When top shear wall (7) is vertically connected with bottom shear wall (8), install straight thread anchor bar (3) top additional pretension hex bolts (5) with partially passing through in the middle part of the oval-shaped table of pre-clamping joint (1) bottom of screw thread after circular hole.
2. precast concrete shear wall according to claim 1 vertically connects pre-tightening apparatus, it is characterized in that: the top peripheral of described pier nose anchor bar (2) arranges spiral stirrup (6); The lower periphery of described straight thread anchor bar (3) arranges spiral stirrup (6).
3. precast concrete shear wall according to claim 1 and 2 vertically connects pre-tightening apparatus, it is characterized in that: install pressure-bearing pad (4) between circular hole in the middle part of described pretension hex bolts (5) and pre-clamping joint (1) bottom oval-shaped table; Between circular hole, pressure-bearing pad (4) is installed in the middle part of the thick pier nose in bottom of described pier nose anchor bar (2) and pre-clamping joint (1) top oval-shaped table.
4. precast concrete shear wall according to claim 3 vertically connects pre-tightening apparatus, it is characterized in that: described pre-clamping joint (1) is positioned at the installing hole (10) of top shear wall (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520522352.3U CN204850152U (en) | 2015-07-20 | 2015-07-20 | Vertical connection preloading device of precast concrete shear force wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520522352.3U CN204850152U (en) | 2015-07-20 | 2015-07-20 | Vertical connection preloading device of precast concrete shear force wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204850152U true CN204850152U (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520522352.3U Expired - Fee Related CN204850152U (en) | 2015-07-20 | 2015-07-20 | Vertical connection preloading device of precast concrete shear force wall |
Country Status (1)
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| CN (1) | CN204850152U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106760055A (en) * | 2017-03-29 | 2017-05-31 | 河北建筑工程学院 | A kind of vertical connecting structure of fabricated shear wall and its construction method |
| CN108222280A (en) * | 2017-12-29 | 2018-06-29 | 中国十七冶集团有限公司 | A kind of assembly concrete component dry connecting device |
| CN109811899A (en) * | 2019-03-22 | 2019-05-28 | 哈尔滨工业大学 | It is a kind of for double steel plate-concrete adjustable structure connection component |
| CN110331657A (en) * | 2019-07-13 | 2019-10-15 | 单国珠 | A kind of method of ball-type tension bridle iron and multi-angle distractive load |
| CN111075055A (en) * | 2019-12-17 | 2020-04-28 | 上海建工集团股份有限公司 | Use method of prefabricated assembly type shear wall steel threaded sleeve |
| CN113047451A (en) * | 2021-03-31 | 2021-06-29 | 天津大学建筑设计规划研究总院有限公司 | Dry-type connection construction method for assembled shear wall convenient for floor slab steel bars to pass through |
-
2015
- 2015-07-20 CN CN201520522352.3U patent/CN204850152U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106760055A (en) * | 2017-03-29 | 2017-05-31 | 河北建筑工程学院 | A kind of vertical connecting structure of fabricated shear wall and its construction method |
| CN106760055B (en) * | 2017-03-29 | 2022-08-23 | 河北建筑工程学院 | Vertical connection structure of assembled shear wall and construction method thereof |
| CN108222280A (en) * | 2017-12-29 | 2018-06-29 | 中国十七冶集团有限公司 | A kind of assembly concrete component dry connecting device |
| CN108222280B (en) * | 2017-12-29 | 2020-03-20 | 中国十七冶集团有限公司 | Assembled concrete member dry-type connecting device |
| CN109811899A (en) * | 2019-03-22 | 2019-05-28 | 哈尔滨工业大学 | It is a kind of for double steel plate-concrete adjustable structure connection component |
| CN110331657A (en) * | 2019-07-13 | 2019-10-15 | 单国珠 | A kind of method of ball-type tension bridle iron and multi-angle distractive load |
| CN111075055A (en) * | 2019-12-17 | 2020-04-28 | 上海建工集团股份有限公司 | Use method of prefabricated assembly type shear wall steel threaded sleeve |
| CN113047451A (en) * | 2021-03-31 | 2021-06-29 | 天津大学建筑设计规划研究总院有限公司 | Dry-type connection construction method for assembled shear wall convenient for floor slab steel bars to pass through |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20200720 |
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| CF01 | Termination of patent right due to non-payment of annual fee |