CN107130686B - Prefabrication and assembly construction column foundation anchor bar accurate positioning method - Google Patents
Prefabrication and assembly construction column foundation anchor bar accurate positioning method Download PDFInfo
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- CN107130686B CN107130686B CN201710461994.0A CN201710461994A CN107130686B CN 107130686 B CN107130686 B CN 107130686B CN 201710461994 A CN201710461994 A CN 201710461994A CN 107130686 B CN107130686 B CN 107130686B
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- anchor bar
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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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
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- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a kind of prefabrication and assembly construction column foundation anchor bar accurate positioning methods, and including forming a pit for bed course 300 ~ 350mm of sinking of pre- buried column anchor bar corresponding position, hole bottom side length is 500mm bigger than pillar side length；Pour after bed course the pop-up column reinforcing bar sideline on blinding concrete；Bracket is fixed temporarily using pre- buried column anchor bar, is located in reinforcing bar within the scope of corresponding column muscle sideline by adjusting backing positions；Bracket will be fixed temporarily and pit side bed course is shored securely, and the verticality of stake muscle can be adjusted by hound；Pit inner concrete is poured in advance, is allowed to design bed course either flush with former, after waiting the part concrete to have some strength, dismounting is fixed temporarily bracket；Sole plate reinforcing bar is completed in binding, installs steel bar positioning plate again, and install sole plate groove template；Base concrete pours completion and removes groove template after reaching some strength.The present invention is easy for construction, it is ensured that registration.
Description
Technical field
The present invention relates to a kind of prefabrication and assembly construction column foundation anchor bar accurate positioning methods.
Background technique
In prefabricated assembled concrete structure, large scale prefabricated concrete column connect with basis and is typically employed in base concrete
In pre-buried anchor bar, specification, quantity, relative position and precast concrete column bottom preset reinforcing bar slurry anchor connection sleeve phase
Match, and only anchor bar diameter more reserved than basis is 14 ~ 17mm big in the aperture of the reserved slurry anchor sleeve in prefabricated post, reserves anchoring steel
It is 8d+20mm(d bar diameter that muscle, which stretches out basic end face length), about 16 ~ 32 reinforcing bar slurry anchor connections in a prefabricated post
The pre-buried anchor bar of sleeve and basis corresponds, when the deviation for wherein having 1 pile foundation anchor bar is more than 7mm, then entire column
It will be unable to install, this is very high to the position accuracy of the pre-buried anchor bar in basis, significantly larger than normal concrete structural steel
The pre-buried required precision of muscle.
The current country is greatly developing building industry modernization, wherein the design of prefabricated assembled concrete structure with apply
Work technology is gradually popularized.Statistics indicate that, pre-buried dowel is inclined in basis according to the engineering sounding for having completion
Rate is about 0.5% ~ 0.8% by the deviation ratio that the reinforcing bar radical in column calculates, but is about 20% ~ 25% based on the number of pillar, by
This causes a large amount of prefabricated posts that can not be mounted directly, and needs to take other corrections or reinforcement measure, cause huge economic loss and
Construction delay, and construction quality is also by a degree of damage.
It can be seen that in prefabricated assembled concrete structure construction, to pre-buried anchor of the precast concrete column in basis
Gu the accuracy of reinforcement location will influence construction quality, construction speed, the key factor of construction cost.How to improve pre-buried
The accuracy of anchor bar position is the key link of this technology research.
Summary of the invention
The purpose of the present invention is to provide a kind of easy for construction, the prefabrication and assembly construction column foundation anchor bar of registration is accurate
Localization method.
The technical solution of the invention is as follows:
A kind of prefabrication and assembly construction column foundation anchor bar accurate positioning method, it is characterized in that: including the following steps:
1) by bed course 300 ~ 350mm of sinking of pre- buried column anchor bar corresponding position, a pit is formed, bottom side length ratio is cheated
The big 500mm of pillar side length；Pour after bed course the pop-up column reinforcing bar sideline on blinding concrete；
2) bracket is fixed temporarily using pre- buried column anchor bar, first installation is fixed temporarily bracket, by adjusting backing positions
It is located in reinforcing bar within the scope of corresponding column muscle sideline；
3) it is fixed temporarily branch and sets up two pieces of positioning plates up and down, positioning plate is by the periphery 65*4 steel plate and 4 thick core steel plate bolts
Connect integral, periphery steel plate opens up semi-circular recesses mouth according to bar diameter, quantity, position, groove port diameter and column reinforcing bar
Diameter is consistent, and groove port relative position and prefabricated column bottom reserved steel bar slurry are anchored head bore position consistency；It is positioned at upper and lower two pieces
It is allowed to be linked to be entirety using 4 Ф 48*3 steel-pipe weldings between plate core steel plate；It is bolted and faces in the middle part of 2 crossbeam channel steels
When fixed bracket, both ends are supported on pit upper brim concrete cushion by adjustable bolt；Crossbeam channel steel and pit slope
It is supported between surface concrete bed course using adjustable bolt, for adjusting fixed cross beam left-right position and levelness；Locating support
Front and rear sides respectively set one with the hound for adjusting bolt, adjust stationary positioned bracket front-rear position and verticality；Pre- buried column anchor
Gu setting U-shaped card between reinforcing bar and upper and lower two pieces of positioning plates fixes or directlys adopt iron wire binding；
4) bracket will be fixed temporarily and pit side bed course is shored securely, and the verticality of stake muscle can be adjusted by hound；
5) pit inner concrete is poured in advance, is allowed to design bed course either flush with former, waits the part concrete that there is C10
After the above intensity, dismounting is fixed temporarily bracket；
6) sole plate reinforcing bar is completed in binding, installs steel bar positioning plate again, and install sole plate groove template, simultaneously
The positioning precision of the pre-buried anchor bar of column is checked with shaper；
7) base concrete pours completion and removes groove template after reaching some strength.
The reserved anchor in basis is checked using shaper in advance after step (7) remove groove template, before hoisting prefabricated column
The accuracy of muscle joint location carries out prefabricated post lifting after meeting the requirements.
The shaper includes bottom plate, setting and slurry anchor sleeve diameter reserved in prefabricated post and spread pattern phase on bottom plate
Same steel pipe.
It is fixed temporarily bracket first to form in level land over-assemble, lifting is in place, adjusts and fixes bracket by adjusting bolt, make
It positions correct and secured.
The present invention is easy for construction, it is ensured that registration.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is to be fixed temporarily bracket to install status diagram.
Fig. 2 is the A-A view of Fig. 1.
Fig. 3 is the B-B view of Fig. 1.
Fig. 4 is shaper structural schematic diagram.
Specific embodiment
A kind of prefabrication and assembly construction column foundation anchor bar accurate positioning method, including the following steps:
1) by the 300 ~ 350mm of sinking of bed course 8 of pre- buried column anchor bar corresponding position, a pit is formed, bottom side length is cheated
It is 500mm bigger than pillar side length；Pour after bed course the pop-up column reinforcing bar sideline on blinding concrete；
2) bracket is fixed temporarily using pre- buried column anchor bar, first installation is fixed temporarily bracket, by adjusting backing positions
It is located in reinforcing bar within the scope of corresponding column muscle sideline；
3) it is fixed temporarily branch and sets up two pieces of positioning plates 1,2 up and down, positioning plate is by the periphery 65*4 steel plate and 4 thick core steel plate spiral shells
It tethers and is connected into entirety, periphery steel plate opens up semi-circular recesses mouth, groove port diameter and column steel according to bar diameter, quantity, position
Muscle diameter is consistent, and groove port relative position and prefabricated column bottom reserved steel bar slurry are anchored head bore position consistency；It is fixed at upper and lower two pieces
It is allowed to be linked to be entirety using 4 Ф 48*3 steel-pipe weldings between the plate core steel plate of position；It is bolted in the middle part of 2 crossbeam channel steels
It is fixed temporarily bracket, both ends are supported on pit upper brim concrete cushion by adjustable bolt 3；Crossbeam channel steel and pit are oblique
Using adjustable bolt support 4 between slope concrete bed course, for adjusting fixed cross beam left-right position and levelness；Positioning branch
Frame front and rear sides respectively set one with the hound 5 for adjusting bolt, adjust stationary positioned bracket front-rear position and verticality；Pre- buried column
U-shaped card is set between anchor bar and upper and lower two pieces of positioning plates fixes or directly adopt iron wire binding；
4) bracket will be fixed temporarily and pit side bed course is shored securely, and the verticality of stake muscle can be adjusted by hound；
5) pit inner concrete is poured in advance, is allowed to design bed course either flush with former, waits the part concrete that there is C10
After the above intensity, dismounting is fixed temporarily bracket；
6) sole plate reinforcing bar is completed in binding, installs steel bar positioning plate again, and install sole plate groove template, simultaneously
The positioning precision of the pre-buried anchor bar of column is checked with shaper；
7) base concrete pours completion and removes groove template after reaching some strength.
The reserved anchor in basis is checked using shaper in advance after step (7) remove groove template, before hoisting prefabricated column
The accuracy of muscle joint location carries out prefabricated post lifting after meeting the requirements.
The shaper includes bottom plate 6, setting and slurry anchor sleeve diameter reserved in prefabricated post and spread pattern on bottom plate
Identical steel pipe 7.
It is fixed temporarily bracket first to form in level land over-assemble, lifting is in place, adjusts and fixes bracket by adjusting bolt, make
It positions correct and secured.
Claims (4)
1. a kind of prefabrication and assembly construction column foundation anchor bar accurate positioning method, it is characterized in that: including the following steps:
1) by bed course 300 ~ 350mm of sinking of pre- buried column anchor bar corresponding position, a pit is formed, hole bottom side length compares pillar
The big 500mm of side length；Pour after bed course the pop-up column reinforcing bar sideline on blinding concrete；
2) bracket is fixed temporarily using pre- buried column anchor bar, first installation is fixed temporarily bracket, makes steel by adjusting backing positions
Muscle is located within the scope of corresponding column muscle sideline；
3) it is fixed temporarily branch and sets up two pieces of positioning plates up and down, positioning plate is bolted by the periphery 65*4 steel plate and 4 thick core steel plates
Integral, periphery steel plate opens up semi-circular recesses mouth, groove port diameter and column bar diameter according to bar diameter, quantity, position
Unanimously, groove port relative position and prefabricated column bottom reserved steel bar slurry are anchored head bore position consistency；In upper and lower two pieces of positioning plate core
It is allowed to be linked to be entirety using 4 Ф 48*3 steel-pipe weldings between core steel plate；It is bolted in the middle part of 2 crossbeam channel steels interim solid
Fixed rack, both ends are supported on pit upper brim concrete cushion by adjustable bolt；Crossbeam channel steel and pit slope are mixed
It is supported between solidifying soil padding using adjustable bolt, for adjusting fixed cross beam left-right position and levelness；Before and after locating support
Two sides respectively set one with the hound for adjusting bolt, adjust stationary positioned bracket front-rear position and verticality；Pre- buried column anchors steel
U-shaped card is set between muscle and upper and lower two pieces of positioning plates fixes or directly adopt iron wire binding；
4) bracket will be fixed temporarily and pit side bed course is shored securely, and the verticality of stake muscle can be adjusted by hound；
5) pit inner concrete is poured in advance, is allowed to design bed course either flush with former, waits the part concrete that there is C10 or more
After intensity, dismounting is fixed temporarily bracket；
6) sole plate reinforcing bar is completed in binding, installs steel bar positioning plate again, and install sole plate groove template, while with calmly
Pattern tool checks the positioning precision of the pre-buried anchor bar of column；
7) base concrete pours completion and removes groove template after reaching some strength.
2. prefabrication and assembly construction column foundation anchor bar accurate positioning method according to claim 1, it is characterized in that: in step
(7) essence of basic reserved dowel joint location is checked after dismounting groove template, before hoisting prefabricated column using shaper in advance
Exactness carries out prefabricated post lifting after meeting the requirements.
3. prefabrication and assembly construction column foundation anchor bar accurate positioning method according to claim 2, it is characterized in that: the sizing
Mold includes bottom plate, setting steel pipe identical with slurry anchor sleeve diameter reserved in prefabricated post and spread pattern on bottom plate.
4. prefabrication and assembly construction column foundation anchor bar accurate positioning method according to claim 1,2 or 3, it is characterized in that: facing
When fixed bracket first formed in level land over-assemble, lifting is in place, adjust and fix bracket by adjusting bolt, position it correctly
And securely.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710461994.0A CN107130686B (en) | 2017-06-19 | 2017-06-19 | Prefabrication and assembly construction column foundation anchor bar accurate positioning method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710461994.0A CN107130686B (en) | 2017-06-19 | 2017-06-19 | Prefabrication and assembly construction column foundation anchor bar accurate positioning method |
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| CN107130686A CN107130686A (en) | 2017-09-05 |
| CN107130686B true CN107130686B (en) | 2019-03-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111779320A (en) * | 2020-07-27 | 2020-10-16 | 邓得文 | Prefabricated installation anchoring system and method for highway toll island |
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| CN109403552B (en) * | 2018-12-21 | 2023-05-26 | 北京城建北方集团有限公司 | Tool type wall steel bar positioning frame |
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| CN112695798A (en) * | 2020-12-26 | 2021-04-23 | 山东齐星建筑有限公司 | Large-scale equipment anchor plate and protective pipe mounting structure and method |
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| CN114809672A (en) * | 2022-05-06 | 2022-07-29 | 山西三建集团有限公司 | Accurate positioning method for steel beam connection embedded bottom plate of frame structure factory building |
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| US7823348B1 (en) * | 2007-09-20 | 2010-11-02 | Manuel Leiva | Device and method for the support of both steel and precast concrete wall posts for installation |
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Patent Citations (5)
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|---|---|---|---|---|
| US7823348B1 (en) * | 2007-09-20 | 2010-11-02 | Manuel Leiva | Device and method for the support of both steel and precast concrete wall posts for installation |
| JP2011149181A (en) * | 2010-01-20 | 2011-08-04 | Kumagai Gumi Co Ltd | Method for constructing monopile foundation |
| CN202577336U (en) * | 2011-12-20 | 2012-12-05 | 北京建工四建工程建设有限公司 | Positioner for square column foundation bolts |
| CN104032894A (en) * | 2014-06-18 | 2014-09-10 | 中国建筑第八工程局有限公司 | Framework post root structure and generating method of framework post root structure |
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| CN111779320A (en) * | 2020-07-27 | 2020-10-16 | 邓得文 | Prefabricated installation anchoring system and method for highway toll island |
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| CN107130686A (en) | 2017-09-05 |
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