CN105350719A - Large span post-pouring belt early-dismantled mould additionally installed temporary constructional column construction method - Google Patents
Large span post-pouring belt early-dismantled mould additionally installed temporary constructional column construction method Download PDFInfo
- Publication number
- CN105350719A CN105350719A CN201510626749.1A CN201510626749A CN105350719A CN 105350719 A CN105350719 A CN 105350719A CN 201510626749 A CN201510626749 A CN 201510626749A CN 105350719 A CN105350719 A CN 105350719A
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- China
- Prior art keywords
- interim
- constructional column
- casting
- ater
- constructional
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
-
- 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
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The present invention discloses a large span post-pouring belt early-dismantled mould temporary constructional column construction method, a temporary constructional column is additionally installed on the end part of the overhanging of a post-pouring belt to support beam plates at two sides of the post-pouring belt, so that overhanging state no longer appears in the entire construction process, the temporary constructional column can replace a steel-pipe framed bent and a template support to bear the self weight of the beam plates at two sides of the post-pouring belt, according to the large span post-pouring belt early-dismantled mould temporary constructional column construction method, the temporary constructional column is additionally installed for bearing the self weight of the hanging beam plates at the position of the post-pouring belt to avoid cracking and deformation phenomenon of the hanging beam plates at the position of the post-pouring belt to achieve the purpose of early dismantling of a steel pipe scaffold, the utilization rate of construction revolving materials can be improved, and the construction cost is greatly reduced.
Description
Technical field
The present invention relates to a kind of industry and civilian construction rear pouring tape construction method, particularly relate to the early form removal of a kind of large span ater-casting and set up interim Constructional Col-umn Construction method.
Background technology
At present in the construction way of ater-casting, be substantially all steel pipe framed bent and the shuttering supporting of first removing ater-casting place, then set up steel pipe framed bent to the beams and slabs of the both sides, ater-casting that return back to top.But just this remove and the process that returns back to top during this period of time in, both sides, the ater-casting beam slab of large span is in cantilever position, and the beam slab arrangement of reinforcement at ater-casting place is not generally design by cantilevered structure, therefore very easily causes beam slab to occur crack; The process that simultaneously returns back to top is difficult to control and returns back to top dynamics, finally causes both sides, ater-casting beam slab to occur more quality problems.In sum, for the above-mentioned shortcoming existed in prior art, invention proposes the early form removal of a kind of large span ater-casting and sets up interim Constructional Col-umn Construction method.
Summary of the invention
The present invention solves the problems of the technologies described above the technical scheme adopted to be to provide the early form removal of a kind of large span ater-casting and to set up interim Constructional Col-umn Construction method, wherein,
(1) interim constructional column is set in both sides, large span ater-casting, replaces steel pipe framed bent and shuttering supporting to bear the deadweight of both sides, ater-casting beam slab.
(2) determine that interim constructional column stays and establish position
1) arrange according to the ater-casting of construction blueprint, the good interim constructional column of division stays establishes position.
2) position that stress is concentrated should be paid the utmost attention to stay and establish.
3) can stay by post net span and establish interim constructional column.
4) the stressed more complicated in corner, ater-casting, should stay and establish an interim constructional column.
(3) surveying setting-out
1) sideline of interim constructional column is gone out according to the control line pilot measurement of building.
2) eject the sideline of interim constructional column template with the line of ink marker, also should eject outside control line, so that model sheetinstallat and correction.
(4) model sheetinstallat is in place
1) side wall form is pressed post sideline installation in position, its stabilizing base is fallen within datum, and carries out temporary fixed.
2) adjacent side template is installed, and adjacent forms is connected; Third and fourth side template is installed, and is fixed.
3) 18mm wooden splint is adopted, according to blank size, according to good post side template.
4) template and vertical keel make T and G joint, guarantee not spillage.
(5) pillar anchor ear is installed
1) adopt steel pipe as pillar anchor ear, anchor ear spacing 500mm.
2) steel pipe anchor ear adopts Screw arbor with nut at both-ends to connect.
(6) straightening correction
1) according to position and the verticality of 300mm control line adjustment template.
2) bridging is set, fastening bridging, the nut of fastening whole anchor ear bolt.
3) mold plate verticality allowable error (floor height is greater than 5m allowable error 8mm, and floor height is not more than 5m allowable error 6mm).
4) each pillar all arranges bridging, when guaranteeing concreting, off normal does not occur, and runs mould phenomenon.
(7) concreting maintenance
1) when whole wall column top board beam meets concreting by examination, concreting together.
2) interim constructional column concrete absolute altitude can with this floor concrete absolute altitude, must not higher than C40.
3) answer placement layer by layer during concreting, first floor thickness must not be greater than 500mm, carefully vibrates, to guarantee that casting and compacting of concrete is closely knit.Casting and compacting of concrete in each construction section should carry out continuously, not stay constuction joint.
4) strictly vibrate on request in building, accomplish not leak and shake, superly to shake, guarantee concrete compaction, stop the mass defects such as honeycomb, pitted skin, dew muscle, slag inclusion.Timely moisture-keeping maintaining after concreting.
(8) all templates and steel pipe framed bent is removed
1) form removal should be observed first to prop up and be torn open afterwards, first tears open for rear; First remove non-bearing template, rear dismounting bearing form; From top to bottom, support first tears lateral support open, after tear the principles such as vertical supporting open.
2) stripping adopts spanner to unload nut, removes anchor ear, adopts bobsled bar, the lower perpendicular stupefied and side form of sled.
3) concrete strength reaches code requirement.
4) concrete strength when side form is removed should be able to ensure that it is surperficial and corner angle are injury-free.
(9) interim constructional column is removed
1) first ater-casting is closed, the interim constructional column of rear dismounting.
2) constructional column adopts the machineries such as pneumatic pick to remove.
3) ater-casting need meet design requirement off-period, and ater-casting concrete strength reaches the intensity of designing requirement.
4) water in advance moistening, control dust pollution.The gravel-concrete slag removed is unified process after should concentrating bunch.
Interim Constructional Col-umn Construction method is set up in the early form removal of above-mentioned large span ater-casting, and wherein, interim constructional column stays establishes spacing must not be greater than 9 meters, and sectional dimension is 200 × 200mm.
Interim Constructional Col-umn Construction method is set up in the early form removal of above-mentioned large span ater-casting, and wherein, interim constructional column position line allowable error is 5mm, and control line is 300mm from template sideline.
Interim Constructional Col-umn Construction method is set up in the early form removal of above-mentioned large span ater-casting, and wherein, template blank size allowable error is 3mm.
Interim Constructional Col-umn Construction method is set up in the early form removal of above-mentioned large span ater-casting, and wherein, diameter of steel tube is 48mm, and wall thickness is not less than 3.0mm, and nut screwing force controls at 40 ~ 60N.M.
The present invention has following beneficial effect relative to prior art:
For this phenomenon, interim constructional column is set up to support both sides, ater-casting beam slab in end of encorbelmenting in ater-casting, makes it all no longer to occur cantilever position in whole work progress.Solve the quality problems that employing " return back to top method " exists, remove steel pipe framed bent and shuttering supporting ahead of time simultaneously, improve the utilization rate of construction circulation material, greatly saved construction cost.
Detailed description of the invention
(1) determine that interim constructional column stays and establish position
1. construction method
1) arrange according to the ater-casting of construction blueprint, the good interim constructional column of division stays establishes position.
2) position that stress is concentrated should be paid the utmost attention to stay and establish.
2. technical requirements
1) can stay by post net span and establish interim constructional column, interim constructional column stays establishes spacing must not be greater than 9 meters.
2) the stressed more complicated in corner, ater-casting, should stay and establish an interim constructional column.
(2) surveying setting-out
1. construction method
1) sideline of interim constructional column is gone out according to the control line pilot measurement of building.
2) eject the sideline of interim constructional column template with the line of ink marker, also should eject outside control line, so that model sheetinstallat and correction.
2. technical requirements
1) interim constructional column position line allowable error is 5mm.
2) control line is 300mm from template sideline.
(3) model sheetinstallat is in place
1. construction method
1) side wall form is pressed post sideline installation in position, its stabilizing base is fallen within datum, and carries out temporary fixed.
2) adjacent side template is installed, and adjacent forms is connected; Third and fourth side template is installed, and is fixed.
2. technical requirements:
1) 18mm wooden splint is adopted, according to blank size, according to good post side template.Template blank size allowable error is 3mm.
2) template and vertical keel make T and G joint, guarantee not spillage.
(4) pillar anchor ear is installed
1. construction method
1) adopt steel pipe as pillar anchor ear, anchor ear spacing 500mm.
2) steel pipe anchor ear adopts Screw arbor with nut at both-ends to connect.
2. technical requirements
1) diameter of steel tube is 48mm, and wall thickness is not less than 3.0mm.
2) nut screwing force controls at 40 ~ 60N.M.
(5) straightening correction
1. construction method
1) according to position and the verticality of 300mm control line adjustment template.
2) bridging is set, fastening bridging, the nut of fastening whole anchor ear bolt.
2. technical requirements
1) mold plate verticality allowable error (floor height is greater than 5m allowable error 8mm, and floor height is not more than 5m allowable error 6mm).
2) each pillar all arranges bridging, when guaranteeing concreting, off normal does not occur, and runs mould phenomenon.
(6) concreting maintenance
1. construction method
1) when whole wall column top board beam meets concreting by examination, concreting together.
2) interim constructional column concrete absolute altitude can with this floor concrete absolute altitude, must not higher than C40.
2. technical requirements
1) answer placement layer by layer during concreting, first floor thickness must not be greater than 500mm, carefully vibrates, to guarantee that casting and compacting of concrete is closely knit.Casting and compacting of concrete in each construction section should carry out continuously, not stay constuction joint.
2) strictly vibrate on request in building, accomplish not leak and shake, superly to shake, guarantee concrete compaction, stop the mass defects such as honeycomb, pitted skin, dew muscle, slag inclusion.Timely moisture-keeping maintaining after concreting.
(7) all templates and steel pipe framed bent is removed
1. construction method
1) form removal should be observed first to prop up and be torn open afterwards, first tears open for rear; First remove non-bearing template, rear dismounting bearing form; From top to bottom, support first tears lateral support open, after tear the principles such as vertical supporting open.
2) stripping adopts spanner to unload nut, removes anchor ear, adopts bobsled bar, the lower perpendicular stupefied and side form of sled.
2. technical requirements
1) concrete strength reaches code requirement.
2) concrete strength when side form is removed should be able to ensure that it is surperficial and corner angle are injury-free.
(8) interim constructional column is removed
1. construction method
1) first ater-casting is closed, the interim constructional column of rear dismounting.
2) constructional column adopts the machineries such as pneumatic pick to remove.
2. technical requirements
1) ater-casting need meet design requirement off-period, and ater-casting concrete strength reaches the intensity of designing requirement.
2) water in advance moistening, control dust pollution.The gravel-concrete slag removed is unified process after should concentrating bunch.
Claims (5)
1. an interim Constructional Col-umn Construction method is set up in the early form removal of large span ater-casting, it is characterized in that: comprise the following steps:
(1) interim constructional column is set in both sides, large span ater-casting, replaces steel pipe framed bent and shuttering supporting to bear the deadweight of both sides, ater-casting beam slab.
(2) determine that interim constructional column stays and establish position
1) arrange according to the ater-casting of construction blueprint, the good interim constructional column of division stays establishes position.
2) position that stress is concentrated should be paid the utmost attention to stay and establish.
3) can stay by post net span and establish interim constructional column.
4) the stressed more complicated in corner, ater-casting, should stay and establish an interim constructional column.
(3) surveying setting-out
1) sideline of interim constructional column is gone out according to the control line pilot measurement of building.
2) eject the sideline of interim constructional column template with the line of ink marker, also should eject outside control line, so that model sheetinstallat and correction.
(4) model sheetinstallat is in place
1) side wall form is pressed post sideline installation in position, its stabilizing base is fallen within datum, and carries out temporary fixed.
2) adjacent side template is installed, and adjacent forms is connected; Third and fourth side template is installed, and is fixed.
3) 18mm wooden splint is adopted, according to blank size, according to good post side template.
4) template and vertical keel make T and G joint, guarantee not spillage.
(5) pillar anchor ear is installed
1) adopt steel pipe as pillar anchor ear, anchor ear spacing 500mm.
2) steel pipe anchor ear adopts Screw arbor with nut at both-ends to connect.
(6) straightening correction
1) according to position and the verticality of 300mm control line adjustment template.
2) bridging is set, fastening bridging, the nut of fastening whole anchor ear bolt.
3) mold plate verticality allowable error (floor height is greater than 5m allowable error 8mm, and floor height is not more than 5m allowable error 6mm).
4) each pillar all arranges bridging, when guaranteeing concreting, off normal does not occur, and runs mould phenomenon.
(7) concreting maintenance
1) when whole wall column top board beam meets concreting by examination, concreting together.
2) interim constructional column concrete absolute altitude can with this floor concrete absolute altitude, must not higher than C40.
3) answer placement layer by layer during concreting, first floor thickness must not be greater than 500mm, carefully vibrates, to guarantee that casting and compacting of concrete is closely knit.Casting and compacting of concrete in each construction section should carry out continuously, not stay constuction joint.
4) strictly vibrate on request in building, accomplish not leak and shake, superly to shake, guarantee concrete compaction, stop the mass defects such as honeycomb, pitted skin, dew muscle, slag inclusion.Timely moisture-keeping maintaining after concreting.
(8) all templates and steel pipe framed bent is removed
1) form removal should be observed first to prop up and be torn open afterwards, first tears open for rear; First remove non-bearing template, rear dismounting bearing form; From top to bottom, support first tears lateral support open, after tear the principles such as vertical supporting open.
2) stripping adopts spanner to unload nut, removes anchor ear, adopts bobsled bar, the lower perpendicular stupefied and side form of sled.
3) concrete strength reaches code requirement.
4) concrete strength when side form is removed should be able to ensure that it is surperficial and corner angle are injury-free.
(9) interim constructional column is removed
1) first ater-casting is closed, the interim constructional column of rear dismounting.
2) constructional column adopts the machineries such as pneumatic pick to remove.
3) ater-casting need meet design requirement off-period, and ater-casting concrete strength reaches the intensity of designing requirement.
4) water in advance moistening, control dust pollution.The gravel-concrete slag removed is unified process after should concentrating bunch.
2. interim Constructional Col-umn Construction method is set up in a kind of large span ater-casting as claimed in claim 1 early form removal, and it is characterized in that: in described step 2, interim constructional column stays establishes spacing must not be greater than 9 meters, and sectional dimension is 200 × 200mm.
3. interim Constructional Col-umn Construction method is set up in a kind of large span ater-casting as claimed in claim 1 early form removal, and it is characterized in that: in described step 3, interim constructional column position line allowable error is 5mm, and control line is 300mm from template sideline.
4. interim Constructional Col-umn Construction method is set up in a kind of large span ater-casting as claimed in claim 1 early form removal, and it is characterized in that: in described step 4, template blank size allowable error is 3mm.
5. interim Constructional Col-umn Construction method is set up in a kind of large span ater-casting as claimed in claim 1 early form removal, and it is characterized in that: in described step 5, diameter of steel tube is 48mm, and wall thickness is not less than 3.0mm, and nut screwing force controls at 40 ~ 60N.M.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510626749.1A CN105350719A (en) | 2015-09-28 | 2015-09-28 | Large span post-pouring belt early-dismantled mould additionally installed temporary constructional column construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510626749.1A CN105350719A (en) | 2015-09-28 | 2015-09-28 | Large span post-pouring belt early-dismantled mould additionally installed temporary constructional column construction method |
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| CN105350719A true CN105350719A (en) | 2016-02-24 |
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|---|---|---|---|
| CN201510626749.1A Pending CN105350719A (en) | 2015-09-28 | 2015-09-28 | Large span post-pouring belt early-dismantled mould additionally installed temporary constructional column construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057331A (en) * | 2018-08-06 | 2018-12-21 | 中冶天工集团有限公司 | A kind of full construction method for disconnecting Long-span Cantilever system support at construction joint |
| CN110593311A (en) * | 2019-10-23 | 2019-12-20 | 中国建筑第七工程局有限公司 | Post-cast strip concrete temporary support column |
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| JPH01287355A (en) * | 1988-05-13 | 1989-11-20 | Shimizu Corp | Precast steel tubular concrete column structure and its construction |
| CN201671328U (en) * | 2010-05-17 | 2010-12-15 | 江苏南通三建集团有限公司 | Top plate post-cast strip outer reinforcing support member |
| CN201730350U (en) * | 2010-06-07 | 2011-02-02 | 浙江省建工集团有限责任公司 | Adjustable assembly type steel structure temporary structure support for structure post-cast strip |
| CN102587659A (en) * | 2012-03-12 | 2012-07-18 | 中天建设集团有限公司 | Construction method for using concrete columns to support structures on both sides of post-pouring strip |
| CN202380717U (en) * | 2011-12-29 | 2012-08-15 | 中建七局第三建筑有限公司 | Template support system forming pre-pouring structures with self-support poles at both sides of post-pouring strip |
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| CN104389430A (en) * | 2014-11-24 | 2015-03-04 | 中设建工集团有限公司 | Application of plain concrete columns to later-poured strip supporting |
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2015
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| JPH01287355A (en) * | 1988-05-13 | 1989-11-20 | Shimizu Corp | Precast steel tubular concrete column structure and its construction |
| CN201671328U (en) * | 2010-05-17 | 2010-12-15 | 江苏南通三建集团有限公司 | Top plate post-cast strip outer reinforcing support member |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057331A (en) * | 2018-08-06 | 2018-12-21 | 中冶天工集团有限公司 | A kind of full construction method for disconnecting Long-span Cantilever system support at construction joint |
| CN110593311A (en) * | 2019-10-23 | 2019-12-20 | 中国建筑第七工程局有限公司 | Post-cast strip concrete temporary support column |
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Application publication date: 20160224 |