CN104695708A - Construction method for expansion joint formwork erection in narrow space of high-rise building external wall - Google Patents
Construction method for expansion joint formwork erection in narrow space of high-rise building external wall Download PDFInfo
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- CN104695708A CN104695708A CN201510086162.6A CN201510086162A CN104695708A CN 104695708 A CN104695708 A CN 104695708A CN 201510086162 A CN201510086162 A CN 201510086162A CN 104695708 A CN104695708 A CN 104695708A
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- formwork
- split bolt
- shrinkage joint
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Abstract
The invention discloses a construction method for expansion joint formwork erection in a narrow space of a high-rise building external wall. The method comprises the following construction processes: wall steel bar binding at expansion joints, formwork erection at expansion joints, concrete pouring, template removal and concrete curing, wherein the method for the formwork erection at expansion joints comprises the steps of manufacturing a shaped steel formwork, manufacturing shaped opposite-pull screws, manufacturing vertical ribs and installing an expansion joint template. The construction method has the advantages that the construction difficulties in the technical field that the formwork erection is difficult at the expansion joints in narrow spaces is solved well, the construction of expansion joint formwork erection is facilitated, and the construction quality can be guaranteed.
Description
Technical field
The present invention relates to a kind of construction method of reinforced concrete wall formwork, more particularly, the present invention relates to a kind of construction method for shrinkage joint formwork in external wall of high-rise building narrow space.
Background technology
Current highrise building gets more and more, and the length of building is also more and more longer.Usually need to arrange shrinkage joint more than during 50-75 rice in the length of building, and require that the width of deformation joint is 20mm-30mm.
Those skilled in the art are known: the both sides at shrinkage joint are the shear wall structure of double parallel, due to the narrower in width of deformation joint, make workman cannot carry out formwork construction at shrinkage joint place, therefore, common construction method adopts cystosepiment to block described shrinkage joint.
Although above method is continued to use always, for highrise building, the height of every layer of building is generally at 2.9m, and the shrinkage joint blocked with cystosepiment, because the pressure of concrete side is very large, and cystosepiment does not have again enough rigidity, be easy to occur the mould phenomenon that rises, thus affect construction quality.
Summary of the invention
Object of the present invention is exactly solve the problem existing for above prior art, and provides a kind of construction method for shrinkage joint formwork in external wall of high-rise building narrow space for this reason.The enforcement of this construction method, overcomes the shortcoming of prior art, has the Reliable guarantee of construction quality.
Technical scheme of the present invention is:
A kind of construction method for shrinkage joint formwork in external wall of high-rise building narrow space, comprise the wall steel bar colligation of shrinkage joint place, templates for expansion joints install, concreting, the construction process such as template removing and concrete curing, templates for expansion joints erection method wherein comprises the following steps:
(1) set shaped steel formwork is made: according to the physical length of side, shrinkage joint shear wall, set shaped steel formwork is made with steel plate, described set shaped steel formwork is provided with the split bolt hole that spacing is in length and breadth 500*500mm, and the both sides in horizontal several described split bolt hole welded reinforcement respectively, the upper end of described set shaped steel formwork is symmetrically welded two suspension ring;
(2) make sizing split bolt: make sizing split bolt with screw mandrel, and weld flat ring in its one end, to be threaded chevron fastener at its other end;
(3) stud is made: with reinforcement fabrication stud, and at the upper end of described stud welding crotch;
(4) installation of templates for expansion joints:
1. utilize tower crane by set shaped steel formwork lifting to shrinkage joint, and pass split bolt hole reserved on described set shaped steel formwork with pvc pipe termination and make it stretch out about 5cm outside described split bolt hole;
2. pass described pvc pipe termination with described sizing split bolt, and make the flat ring of its one end be close to set shaped steel formwork, its other end then stretches out outside the template of described shear wall opposite side;
3. the top of described stud self-fixing steel form is inserted in the flat ring of longitudinally several described sizing split bolt end, and make the crotch on stud top described in it hook the upper end of described set shaped steel formwork;
4. chevron fastener is arranged on described sizing split bolt stretch out the one end outside described shear wall opposite side template and tighten reinforcing, completes formwork erection.
In abovementioned steps (1), make the steel plate of described set shaped steel formwork, its thickness is 6mm, and it is highly 3100mm.
In abovementioned steps (1), on described set shaped steel formwork, the diameter in split bolt hole is Φ 50.
In abovementioned steps (1), the bar diameter being welded on laterally both sides, several described split bolt hole is Φ 25.
In abovementioned steps (3), the bar diameter making described stud is Φ 25.
In abovementioned steps (3), be welded on the crotch of described stud upper end with the reinforcement fabrication of Φ 12.
In abovementioned steps (4), the pvc pipe tip diameter through described split bolt hole is Φ 50.
In abovementioned steps (4), the length that described pvc pipe termination is stretched out outside described split bolt hole is about 5cm.
The present invention is used for the construction method of shrinkage joint formwork in external wall of high-rise building narrow space, overcome the shortcoming of prior art, well solve the art is difficult to formwork all the time construction difficult problem at the shrinkage joint place of narrow space, not only facilitate shrinkage joint formwork construction, and can construction quality be ensured.
Accompanying drawing explanation
Fig. 1 is the structural representation of set shaped steel formwork in the present invention;
Fig. 2 is the schematic diagram of the present invention for shrinkage joint place one side body of wall formwork;
Fig. 3 is the schematic diagram of the present invention for two sides, shrinkage joint place body of wall formwork.
Detailed description of the invention
In order to make technical scheme of the present invention more easily be understood, be described in detail below in conjunction with the embodiment of shrinkage joint body of wall (floor height 2900mm) formwork construction in accompanying drawing and China Democratic National Construction Association's engineering.
With reference to Fig. 1, Fig. 2, Fig. 3, the present invention is used for the construction method of shrinkage joint formwork in external wall of high-rise building narrow space, comprise the wall steel bar colligation of shrinkage joint place, templates for expansion joints install, concreting, the construction process such as template removing and concrete curing, wherein: the construction method that described templates for expansion joints installs comprises the following steps:
(1) set shaped steel formwork 1 is made:
According to the physical length of side, shrinkage joint 5 shear wall 6, the steel plate that 6mm is thick, 3100mm is high is selected to make set shaped steel formwork 1, the upper end bilateral symmetry of described set shaped steel formwork 1 welds two suspension ring 11 for lifting, described set shaped steel formwork 1 has the split bolt hole 12 of Φ 50 with the spacing in length and breadth of 500*500mm, laterally the both sides in several described split bolt hole 12 weld the reinforcing bar 13 of Φ 25 respectively;
(2) sizing split bolt 2 is made:
Adopting screw mandrel to make sizing split bolt 2, and weld flat ring 21 in its one end, at its other end, the chevron fastener 22 for tightening reinforcing being installed;
(3) stud 3 is made:
Adopt the reinforcement fabrication stud 3 of Φ 25, and at the crotch 31 of the upper end of described stud 3 welding in order to fixing stud 3, the bar diameter of described crotch 31 is Φ 12.
(4) installation of templates for expansion joints:
1. utilize tower crane to lift to shrinkage joint 5 by described set shaped steel formwork 1, first pass split bolt hole 12 reserved on described set shaped steel formwork 1 with the pvc pipe termination 4 of Φ 50 and make it stretch out about 5cm outside described split bolt hole 12;
2. pass described pvc pipe termination 4 with described sizing split bolt 2, and make the flat ring 21 of described sizing split bolt 2 one end be close to described set shaped steel formwork 1, its other end stretches out the template of described shear wall 6 opposite side;
3. by described stud 3 in the flat ring 21 that longitudinally several described sizing split bolt 2 end is inserted on the top of described set shaped steel formwork 1, and make the crotch 31 on its top hook the upper end of described set shaped steel formwork 1 in case on-slip falls;
4. described chevron fastener 22 to be arranged on outside template that described sizing split bolt 2 stretches out described shear wall 6 opposite side and to tighten reinforcing, completing formwork erection.
In the implementation process of the inventive method, each step of especially templates for expansion joints installation, all has strict construction to monitor, thus ensures reliable construction quality.
Present invention utilizes steel plate be better than the rigidity of cystosepiment and special sizing split bolt and stud with the use of, define the new method of carrying out shrinkage joint formwork construction in limited narrow space, not only avoid prior art and use the mould phenomenon that rises easily occurred during cystosepiment blocking shrinkage joint, and ensure that construction quality, there is good practicality.
Above with reference to drawings and Examples, schematically describe technical scheme of the present invention, this description is not restricted.Those skilled in the art will be understood that in actual applications, and in the present invention, some change all likely occurs the implementation detail of each step, and other staff also may make similar Design under its enlightenment.Special needs to be pointed out is: only otherwise depart from design aim of the present invention, all apparent variations in detail or similar Design, be all included within protection scope of the present invention.
Claims (8)
1. the construction method for shrinkage joint formwork in external wall of high-rise building narrow space, comprise the wall steel bar colligation of shrinkage joint place, templates for expansion joints install, concreting, the construction process such as template removing and concrete curing, it is characterized in that: described templates for expansion joints erection method, comprises the following steps:
(1) set shaped steel formwork is made: according to the physical length of side, shrinkage joint shear wall, set shaped steel formwork is made with steel plate, described set shaped steel formwork is provided with the split bolt hole that spacing is in length and breadth 500*500mm, and the both sides in horizontal several described split bolt hole welded reinforcement respectively, the upper end of described set shaped steel formwork is symmetrically welded two suspension ring;
(2) make sizing split bolt: make sizing split bolt with screw mandrel, and weld flat ring in its one end, to be threaded chevron fastener at its other end;
(3) stud is made: with reinforcement fabrication stud, and at the upper end of described stud welding crotch;
(4) installation of templates for expansion joints:
1. utilize tower crane by set shaped steel formwork lifting to shrinkage joint, and pass split bolt hole reserved on described set shaped steel formwork with pvc pipe termination and make it stretch out about 5cm outside described split bolt hole;
2. pass described pvc pipe termination with described sizing split bolt, and make the flat ring of its one end be close to set shaped steel formwork, its other end then stretches out outside the template of described shear wall opposite side;
3. the top of described stud self-fixing steel form is inserted in the flat ring of longitudinally several described sizing split bolt end, and make the crotch on stud top described in it hook the upper end of described set shaped steel formwork;
4. chevron fastener is arranged on described sizing split bolt stretch out the one end outside described shear wall opposite side template and tighten reinforcing, completes formwork erection.
2. the construction method for shrinkage joint formwork in external wall of high-rise building narrow space according to claim 1, it is characterized in that: for making the steel plate of described set shaped steel formwork, its thickness is 6mm, and it is highly 3100mm.
3. the construction method for shrinkage joint formwork in external wall of high-rise building narrow space according to claim 1, is characterized in that: on described set shaped steel formwork, the diameter in split bolt hole is Φ 50.
4. the construction method for shrinkage joint formwork in external wall of high-rise building narrow space according to claim 1, is characterized in that: transverse weld is Φ 25 at the bar diameter of both sides, several described split bolt hole.
5. the construction method for shrinkage joint formwork in external wall of high-rise building narrow space according to claim 1, is characterized in that: the bar diameter making described stud is Φ 25.
6. the construction method for shrinkage joint formwork in external wall of high-rise building narrow space according to claim 1, is characterized in that: be welded on the crotch of described stud upper end with the reinforcement fabrication of Φ 12.
7. the construction method for shrinkage joint formwork in external wall of high-rise building narrow space according to claim 1, it is characterized in that: through the pvc pipe termination in described split bolt hole, its diameter is Φ 50.
8. the construction method for shrinkage joint formwork in external wall of high-rise building narrow space according to claim 1, is characterized in that: the length that described pvc pipe termination is stretched out outside described split bolt hole is about 5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510086162.6A CN104695708A (en) | 2015-02-17 | 2015-02-17 | Construction method for expansion joint formwork erection in narrow space of high-rise building external wall |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510086162.6A CN104695708A (en) | 2015-02-17 | 2015-02-17 | Construction method for expansion joint formwork erection in narrow space of high-rise building external wall |
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| CN104695708A true CN104695708A (en) | 2015-06-10 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178591A (en) * | 2015-10-12 | 2015-12-23 | 江苏南通二建集团有限公司 | Small-gap double-shear-wall deformation joint formwork and construction method thereof |
| CN108571164A (en) * | 2018-05-23 | 2018-09-25 | 江苏无锡二建建设集团有限公司 | Expansion joint both sides wallboard all-steel big shuttering structure and construction method |
| CN109057056A (en) * | 2018-08-09 | 2018-12-21 | 五冶集团上海有限公司 | Filled and process plate fixing means between a kind of shear wall expansion joint |
| CN109779249A (en) * | 2018-12-28 | 2019-05-21 | 中国二十冶集团有限公司 | A kind of mold method at narrow expansion joint |
| CN110630011A (en) * | 2019-10-17 | 2019-12-31 | 甘肃第三建设集团公司 | Template reinforcing system for double shear walls at deformation joint and construction method thereof |
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| CN201437639U (en) * | 2009-06-10 | 2010-04-14 | 中建三局建设工程股份有限公司 | Integral type deformation joint steel moulding plate |
| CN201486133U (en) * | 2009-07-17 | 2010-05-26 | 中达建设集团股份有限公司 | Reinforced concrete double-shear wall template |
| CN101949213A (en) * | 2010-10-25 | 2011-01-19 | 中国建筑第六工程局有限公司 | Special support system of building structure deformed seam template |
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| CN102359273A (en) * | 2011-09-19 | 2012-02-22 | 中国十七冶集团有限公司 | Method for reinforcing shear wall structure deformation joint template using fixing plate |
| CN102433988A (en) * | 2011-12-27 | 2012-05-02 | 中建八局第四建设有限公司 | Wall column template on two sides of expansion joint and construction method for wall column template |
| CN202627491U (en) * | 2012-06-14 | 2012-12-26 | 中铁四局集团建筑工程有限公司 | Forming template for deformation joint position shear wall of high-rise building |
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2015
- 2015-02-17 CN CN201510086162.6A patent/CN104695708A/en active Pending
Patent Citations (10)
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| CN101349106A (en) * | 2008-08-26 | 2009-01-21 | 江苏南通二建集团有限公司 | Dual-shear force wall deformation slit formwork |
| CN201268943Y (en) * | 2008-08-26 | 2009-07-08 | 江苏南通二建集团有限公司 | Novel dual-shearing force deformation joint template |
| CN201437639U (en) * | 2009-06-10 | 2010-04-14 | 中建三局建设工程股份有限公司 | Integral type deformation joint steel moulding plate |
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| CN102296810A (en) * | 2011-06-13 | 2011-12-28 | 常州市戴溪建筑工程有限公司 | Deformation joint template support structure and construction method thereof |
| CN102359273A (en) * | 2011-09-19 | 2012-02-22 | 中国十七冶集团有限公司 | Method for reinforcing shear wall structure deformation joint template using fixing plate |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178591A (en) * | 2015-10-12 | 2015-12-23 | 江苏南通二建集团有限公司 | Small-gap double-shear-wall deformation joint formwork and construction method thereof |
| CN108571164A (en) * | 2018-05-23 | 2018-09-25 | 江苏无锡二建建设集团有限公司 | Expansion joint both sides wallboard all-steel big shuttering structure and construction method |
| CN109057056A (en) * | 2018-08-09 | 2018-12-21 | 五冶集团上海有限公司 | Filled and process plate fixing means between a kind of shear wall expansion joint |
| CN109779249A (en) * | 2018-12-28 | 2019-05-21 | 中国二十冶集团有限公司 | A kind of mold method at narrow expansion joint |
| CN110630011A (en) * | 2019-10-17 | 2019-12-31 | 甘肃第三建设集团公司 | Template reinforcing system for double shear walls at deformation joint and construction method thereof |
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Application publication date: 20150610 |