CN113137062A - High-rise residential expansion type reinforcing belt construction method for replacing post-cast strip - Google Patents
High-rise residential expansion type reinforcing belt construction method for replacing post-cast strip Download PDFInfo
- Publication number
- CN113137062A CN113137062A CN202110505381.9A CN202110505381A CN113137062A CN 113137062 A CN113137062 A CN 113137062A CN 202110505381 A CN202110505381 A CN 202110505381A CN 113137062 A CN113137062 A CN 113137062A
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- Prior art keywords
- post
- concrete
- cast strip
- reinforcing
- construction method
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 35
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 28
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 230000007547 defect Effects 0.000 claims description 4
- 239000012466 permeate Substances 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 abstract description 4
- 238000009435 building construction Methods 0.000 abstract description 2
- 238000009415 formwork Methods 0.000 abstract description 2
- 238000005728 strengthening Methods 0.000 description 3
- 108010068370 Glutens Proteins 0.000 description 2
- 235000021312 gluten Nutrition 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
Abstract
The invention relates to the technical field of building construction, in particular to a construction method of an expansion type reinforcing belt of a high-rise building for replacing a post-cast strip. The formwork support adopts an integral support mode, the original post-cast strip is firstly paved with bottom reinforcements according to the specifications and the intervals of top plate reinforcements, and after the pavement is finished, longitudinal and transverse reinforcing reinforcements are arranged in a reinforcing strip area; after the binding of the reinforcing steel bars is finished, the range of the post-cast strip is divided by adopting a steel wire mesh, firstly, concrete of the top plate except the reinforcing plate strip is poured, and after the pouring is finished, micro-expansion concrete is poured in the reinforcing plate strip; the post-cast strip part concrete and the main body concrete are integrally cast, so that the construction period is shortened, and the hidden danger of leakage at the later stage of the construction joint at the part is avoided.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a construction method of an expansion type reinforcing belt of a high-rise building, which replaces a post-cast strip.
Background
And in the main structure construction stage, according to the structural design requirement, after the construction length of the concrete structure exceeds a certain distance, in order to reduce the influence of stress generated by the temperature shrinkage of the concrete on the structure, a temperature post-pouring zone is required to be arranged. For high-rise houses, if the top plate and the outer wall of each floor are provided with the post-cast strip during the construction of the main structure, the post-cast strip template is not only required to be independently provided with the support, but also the independent support is required to be independently arranged at the position during the later-stage template removal, and the post-cast strip can not be removed until the concrete pouring of the post-cast strip is completed, so that the waste of materials is caused, and the construction cost is increased; meanwhile, the post-cast strip concrete needs to be poured after concrete pouring on the two sides is finished for a period of time, so that the influence is caused on the alternate construction of a secondary structure and the floor surface in the later period, and the construction period is influenced; in addition, the post-cast strip part belongs to the weak area of major structure seepage, if handle improperly, may form the seepage hidden danger in later stage service stage, influences the construction function of structure.
Therefore, there is a need for improvements in the prior art.
Disclosure of Invention
In order to overcome the defects in the prior art, the construction method of the expansion type reinforcing strip of the high-rise dwelling house replacing the post-cast strip is provided
In order to solve the technical problems, the invention adopts the technical scheme that:
a construction method of an expansion type reinforcing belt of a high-rise residence replacing a post-cast strip comprises the following steps:
s1, erecting the template, erecting the main floor top plate template support frame according to a conventional construction method, and when the construction reaches the design position of the original post-cast strip, adopting an integral erecting mode, and laying the template, the support frame and the surrounding floor slab die carrier in a through manner, so as to ensure the integrity of the structure;
s2, laying top plate steel bars, laying bottom bars according to the specifications and the intervals of the top plate steel bars at the position of an original post-cast strip, and arranging longitudinal and transverse reinforcing steel bars in a reinforcing strip area after laying is finished;
s3, after the steel bars are bound, dividing the range of the post-cast strip by using a steel wire mesh, and ensuring that concrete in the post-cast strip does not mutually permeate into concrete of a main roof slab during concrete pouring;
s4, pouring concrete, namely pouring the concrete of the top plate except the post-cast strip range, and pouring the micro-expansive concrete in the post-cast strip range after the pouring is finished;
s5, after pouring is completed, covering with a film in time and maintaining;
and S6, removing the template and the bracket after the concrete strength meets the design requirement.
Furthermore, the reinforcing steel bar is a phi 8@200 steel bar.
Furthermore, the design width of the post-cast strip is 800mm, and each end of the transverse reinforcing steel bar extends into the floor slab by 600 mm.
Further, in S2, when ligature bottom reinforcing bar, with bottom strengthening rib and floor end muscle ligature, the ligature is accomplished and the qualified back of self-checking, notifies the administrative unit to check and accepts, checks and accepts qualified back, ligatures the face muscle again, and the reinforcement to upper portion strengthening band is ligatured after the gluten ligature is accomplished, sets up the split heads after the ligature is accomplished.
Further, in S4, the concrete is fully vibrated by the vibrating rod during the concrete pouring, so as to avoid the quality defect of the concrete caused by the leakage vibration.
Furthermore, the strength of the micro-expansion concrete of the reinforcing belt is the same as that of the floor slab concrete.
Furthermore, the slump of the concrete is controlled to be 180 +/-20 mm when the concrete is poured.
Compared with the prior art, the invention has the following beneficial effects:
1. the post-cast strip part concrete and the main body concrete are integrally cast, so that the construction period is shortened, and the hidden danger of leakage at the later stage of the construction joint at the part is avoided.
2. When the template is erected, the post-cast strip part is erected continuously by adopting a mode of simultaneously erecting the floor template at the adjacent part, the arrangement of the post-cast strip does not need to be considered independently, and the formwork erecting efficiency is improved.
3. Adopt the concrete strengthening band to avoid when the major structure construction stay of the inside post-cast strip of main building establish, when roof template prop up establish with demolish, post-cast strip position template props up simultaneously with peripheral structural component and establishes and demolish, need not to wait to carry out the pouring of this position concrete again after post-cast strip both sides concrete shrinkage deformation is stable, for the later stage major structure accomplishes the construction of back lower part secondary structure and floor surface interlude and provides the condition, construction progress has been accelerated, construction period has been practiced thrift.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
a construction method of an expansion type reinforcing belt of a high-rise residence replacing a post-cast strip comprises the following steps:
s1, erecting the template, erecting the main floor top plate template support frame according to a conventional construction method, and when the construction reaches the design position of the original post-cast strip, adopting an integral erecting mode, and laying the template, the support frame and the surrounding floor slab die carrier in a through manner, so as to ensure the integrity of the structure;
s2, laying top plate reinforcing steel bars, laying bottom reinforcing steel bars according to the specifications and the intervals of the top plate reinforcing steel bars at the position of an original post-cast strip, and after laying is finished, arranging longitudinal and transverse reinforcing steel bars in a reinforcing strip area, wherein the reinforcing strip comprises the position of the original post-cast strip and the range of inserting the transverse reinforcing steel bars into a floor slab;
when binding the bottom reinforcing steel bars, binding the bottom reinforcing steel bars and floor bottom bars, informing a supervision unit to check and accept after the binding is finished and the self-inspection is qualified, binding the face bars after the check and acceptance is qualified, binding the reinforcing steel bars of the upper reinforcing belt after the binding of the gluten is finished, and arranging a split heads after the binding is finished;
s3, after the steel bars are bound, dividing the range of the post-cast strip by using a steel wire mesh, and ensuring that concrete in the post-cast strip does not mutually permeate into concrete of a main roof slab during concrete pouring;
s4, pouring concrete, namely pouring the concrete of the top plate except for the post-cast strip, and pouring the micro-expansive concrete within the range of the post-cast strip after pouring is finished;
when concrete is poured, the vibrating rod is adopted for fully vibrating, and the defect of concrete quality caused by vibration leakage is avoided.
S5, after pouring is completed, covering with a film in time and maintaining;
and S6, removing the template and the bracket after the concrete strength meets the design requirement.
The reinforcing steel bars are phi 8@200 steel bars.
The design width of the post-cast strip is 800mm, each end of the transverse reinforcing steel bar extends into the floor slab by 600mm, and the width of the reinforcing strip is 2000 mm.
When concrete is poured, the slump of the concrete is controlled to be 180 +/-20 mm.
Although only the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all changes are encompassed in the scope of the present invention.
Claims (7)
1. A high-rise dwelling expansion type reinforcing belt construction method for replacing a post-cast strip is characterized in that:
s1, erecting the template, erecting the main floor top plate template support frame according to a conventional construction method, and when the construction reaches the design position of the original post-cast strip, adopting an integral erecting mode, and laying the template, the support frame and the surrounding floor slab die carrier in a through manner, so as to ensure the integrity of the structure;
s2, laying top plate steel bars, laying bottom bars according to the specifications and the intervals of the top plate steel bars at the position of an original post-cast strip, and arranging longitudinal and transverse reinforcing steel bars in a reinforcing strip area after laying is finished;
s3, after the steel bars are bound, dividing the range of the post-cast strip by using a steel wire mesh, and ensuring that concrete in the post-cast strip does not mutually permeate into concrete of a main roof slab during concrete pouring;
s4, pouring concrete, namely pouring the concrete of the top plate except the post-cast strip range, and pouring the micro-expansive concrete in the post-cast strip range after the pouring is finished;
s5, after pouring is completed, covering with a film in time and maintaining;
and S6, removing the template and the bracket after the concrete strength meets the design requirement.
2. The construction method of the expansion type reinforcing band of the high-rise residential building for replacing the post-cast strip according to claim 1, is characterized in that: the reinforcing steel bars are phi 8@200 steel bars.
3. The construction method of the expansion type reinforcing band of the high-rise residential building for replacing the post-cast strip according to claim 1, is characterized in that: the design width of the post-cast strip is 800mm, and each end of the transverse reinforcing steel bar extends into the floor slab by 600 mm.
4. The construction method of the expansion type reinforcing band of the high-rise residential building for replacing the post-cast strip according to claim 1, is characterized in that: in S2, when the reinforcing steel bars at the bottom are bound, the reinforcing steel bars at the bottom of the bottom and the floor slab are bound, after the binding is completed and the self-checking is qualified, a supervision unit is informed to check and accept, after the checking and acceptance is qualified, the reinforcing steel bars at the upper reinforcing belt are bound, and after the binding is completed, a split heads is arranged.
5. The construction method of the expansion type reinforcing band of the high-rise residential building for replacing the post-cast strip according to claim 1, is characterized in that: and in the step S4, the concrete is fully vibrated by adopting the vibrating rod during the concrete pouring, so that the defect of concrete quality caused by vibration leakage is avoided.
6. The construction method of the expansion type reinforcing band of the high-rise residential building for replacing the post-cast strip according to claim 1, is characterized in that: the strength of the micro-expansion concrete of the reinforcing belt is the same as that of the floor slab concrete.
7. The construction method of the expansion type reinforcing band of the high-rise residential building for replacing the post-cast strip according to claim 1, is characterized in that: when concrete is poured, the slump of the concrete is controlled to be 180 +/-20 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110505381.9A CN113137062A (en) | 2021-05-10 | 2021-05-10 | High-rise residential expansion type reinforcing belt construction method for replacing post-cast strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110505381.9A CN113137062A (en) | 2021-05-10 | 2021-05-10 | High-rise residential expansion type reinforcing belt construction method for replacing post-cast strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113137062A true CN113137062A (en) | 2021-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110505381.9A Pending CN113137062A (en) | 2021-05-10 | 2021-05-10 | High-rise residential expansion type reinforcing belt construction method for replacing post-cast strip |
Country Status (1)
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| CN (1) | CN113137062A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116092A (en) * | 2009-12-30 | 2011-07-06 | 中冶成工上海五冶建设有限公司 | Method for constructing reinforcing band for compensating contraction of concrete and preventing cracks |
| CN202007422U (en) * | 2011-04-07 | 2011-10-12 | 中国建筑材料科学研究总院 | Advanced water-stop steel plate structure for post-pouring zone of underground construction |
| CN102226345A (en) * | 2011-04-07 | 2011-10-26 | 中国建筑材料科学研究总院 | Method for carrying out advanced water shut-off on post-cast strips in underground engineering and advanced water shut-off steel plate structure |
| CN103410173A (en) * | 2013-08-21 | 2013-11-27 | 天津二十冶建设有限公司 | Construction method for vertical post pouring belt plugging of underground structural outer wall |
| CN105986671A (en) * | 2015-01-30 | 2016-10-05 | 重庆雄创建筑工程技术有限公司 | Building concrete pouring process |
| CN206174148U (en) * | 2016-09-29 | 2017-05-17 | 中建二局第三建筑工程有限公司 | It subsides post -cast strip structure system to transfinite on ground |
| CN206987075U (en) * | 2017-05-03 | 2018-02-09 | 广州番禺职业技术学院 | A kind of basement bottom board of alternative post-cast strip strengthens band structure |
| CN107700846A (en) * | 2017-11-14 | 2018-02-16 | 中建四局第六建筑工程有限公司 | A kind of post-cast strip concrete arrester and its application method |
| CN108411945A (en) * | 2018-02-01 | 2018-08-17 | 中国十七冶集团有限公司 | A kind of post-cast strip anti-cracking waterproof structure construction technique |
| CN109750690A (en) * | 2019-01-24 | 2019-05-14 | 中建八局第三建设有限公司 | Podium pouring after settlement is optimized for expansive concrete construction joint construction method |
| CN111764522A (en) * | 2020-06-29 | 2020-10-13 | 中建八局华南建设有限公司 | Anti-leakage building floor post-cast strip structure and pouring method |
| CN112112292A (en) * | 2020-07-28 | 2020-12-22 | 中建八局第四建设有限公司 | Construction method for preventing concrete from permeating into two sides of post-cast strip of bottom plate of garage |
-
2021
- 2021-05-10 CN CN202110505381.9A patent/CN113137062A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116092A (en) * | 2009-12-30 | 2011-07-06 | 中冶成工上海五冶建设有限公司 | Method for constructing reinforcing band for compensating contraction of concrete and preventing cracks |
| CN202007422U (en) * | 2011-04-07 | 2011-10-12 | 中国建筑材料科学研究总院 | Advanced water-stop steel plate structure for post-pouring zone of underground construction |
| CN102226345A (en) * | 2011-04-07 | 2011-10-26 | 中国建筑材料科学研究总院 | Method for carrying out advanced water shut-off on post-cast strips in underground engineering and advanced water shut-off steel plate structure |
| CN103410173A (en) * | 2013-08-21 | 2013-11-27 | 天津二十冶建设有限公司 | Construction method for vertical post pouring belt plugging of underground structural outer wall |
| CN105986671A (en) * | 2015-01-30 | 2016-10-05 | 重庆雄创建筑工程技术有限公司 | Building concrete pouring process |
| CN206174148U (en) * | 2016-09-29 | 2017-05-17 | 中建二局第三建筑工程有限公司 | It subsides post -cast strip structure system to transfinite on ground |
| CN206987075U (en) * | 2017-05-03 | 2018-02-09 | 广州番禺职业技术学院 | A kind of basement bottom board of alternative post-cast strip strengthens band structure |
| CN107700846A (en) * | 2017-11-14 | 2018-02-16 | 中建四局第六建筑工程有限公司 | A kind of post-cast strip concrete arrester and its application method |
| CN108411945A (en) * | 2018-02-01 | 2018-08-17 | 中国十七冶集团有限公司 | A kind of post-cast strip anti-cracking waterproof structure construction technique |
| CN109750690A (en) * | 2019-01-24 | 2019-05-14 | 中建八局第三建设有限公司 | Podium pouring after settlement is optimized for expansive concrete construction joint construction method |
| CN111764522A (en) * | 2020-06-29 | 2020-10-13 | 中建八局华南建设有限公司 | Anti-leakage building floor post-cast strip structure and pouring method |
| CN112112292A (en) * | 2020-07-28 | 2020-12-22 | 中建八局第四建设有限公司 | Construction method for preventing concrete from permeating into two sides of post-cast strip of bottom plate of garage |
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Application publication date: 20210720 |
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| RJ01 | Rejection of invention patent application after publication |