CN103243915B - Formwork removing and hole sealing method for closed box-shaped structural concrete - Google Patents
Formwork removing and hole sealing method for closed box-shaped structural concrete Download PDFInfo
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- CN103243915B CN103243915B CN201310158339.XA CN201310158339A CN103243915B CN 103243915 B CN103243915 B CN 103243915B CN 201310158339 A CN201310158339 A CN 201310158339A CN 103243915 B CN103243915 B CN 103243915B
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Abstract
Disclosed is a formwork removing and hole sealing method for closed box-shaped structural concrete. During casting closed box-shaped concrete, a post-cast hole is reserved on one side wall of the closed box-shaped concrete, an operator enters the closed box-shaped concrete to remove formwork of four inner side walls and a top plate, supports and fasteners therein from the post-cast hole, and then the post-cast hole is casted and sealed by concrete. After casting, only formwork of the inner side of the post-cast hole is left, so that material loss is low, the post-cast hole can be completely sealed without affecting structural strength of the closed box-shaped structural concrete, and the requirement of environment-friendly construction is met.
Description
Technical field:
The present invention relates to technical field of buildings, more specifically to a kind of stripping method of closed box structural concrete.
Background technology:
After general closed box structural concrete is built, the template of four side inwalls and top board and support, securing member etc. are enclosed in the inside cannot remove recovery, causes a large amount of waste of material.
Summary of the invention:
Object of the present invention is exactly the deficiency for prior art, and a kind of closed box structural concrete form removal reperforating method is provided, after it has been built, only remaining back pouring hole inner side template cannot reclaim, spillage of material is little, simultaneously back pouring hole also can complete closure, does not affect the structural strength of closed box structural concrete, can reach the requirement of green construction.
Technology solution of the present invention is as follows:
Closed box structural concrete form removal reperforating method, A, reserved back pouring hole: when pouring into a mould closed box concrete, a reserved back pouring hole on the body of wall of closed box concrete side, reserved perforations adding wall connecting reinforcing bar on back pouring hole inwall;
B, stripping: after the solidification of closed box pouring concrete, staff enters in closed box concrete the template of removing four side inwalls in closed box concrete and top board and support, securing member from back pouring hole;
C, plant card muscle: on the concrete wall of back pouring hole surrounding with electric drill perforating, plant anchor bar by structure glue and form card muscle;
D, fixing after water template: on card muscle, fix back pouring hole inner side template and back pouring hole outboard template, the top of back pouring hole outboard template forms sprue gate, back pouring hole inner side template and back pouring hole outboard template are pressed against inside and outside two sides of the concrete wall at back pouring hole place respectively and are tightened together by Screw arbor with nut at both-ends, and rearmounted reinforcing bar is placed between back pouring hole inner side template and back pouring hole outboard template;
E, closed back pouring hole: fluid concrete in sprue gate, after concrete curing, remove back pouring hole outboard template.
Described rearmounted reinforcement welding is fixed on perforations adding wall connecting reinforcing bar.
Beneficial effect of the present invention is:
After it has been built, only remaining back pouring hole inner side template cannot reclaim, and spillage of material is little, and back pouring hole also can complete closure simultaneously, does not affect the structural strength of closed box structural concrete, can reach the requirement of green construction.
Accompanying drawing illustrates:
Fig. 1 is that in embodiment 1, the structural representation after back pouring hole reserved by closed box structural concrete;
Fig. 2 is that in embodiment 1, card muscle is planted and sectional view after fixing back pouring hole inner side template and back pouring hole outboard template by back pouring hole place;
Fig. 3 is the structural representation of embodiment 2.
In figure: 1, closed box concrete; 11, top board; 2, back pouring hole; 3, perforations adding wall connecting reinforcing bar; 4, card muscle is planted; 5, back pouring hole inner side template; 6, back pouring hole outboard template; 61, sprue gate; 7, Screw arbor with nut at both-ends; 8, rearmounted reinforcing bar.
Detailed description of the invention:
Embodiment 1: see shown in Fig. 1,2, closed box structural concrete form removal reperforating method, A, reserved back pouring hole: when pouring into a mould closed box concrete 1, a reserved back pouring hole 2 on the side body of wall of closed box concrete 1, reserved perforations adding wall connecting reinforcing bar 3 on back pouring hole 2 inwall;
B, stripping: after closed box concrete 1 cast cured explosive, staff enters in closed box concrete 1 template of removing four side inwalls in closed box concrete 1 and top board 11 and support, securing member from back pouring hole 2;
C, plant card muscle: on the concrete wall of back pouring hole 2 surrounding with electric drill perforating, plant anchor bar by structure glue and form card muscle 4;
D, fixing after water template: on card muscle 4, fix back pouring hole inner side template 5 and back pouring hole outboard template 6, the top of back pouring hole outboard template 6 forms sprue gate 61, back pouring hole inner side template 5 and back pouring hole outboard template 6 are pressed against inside and outside two sides of the concrete wall at back pouring hole 2 place respectively and are tightened together by Screw arbor with nut at both-ends 7, and rearmounted reinforcing bar 8 is placed between back pouring hole inner side template 5 and back pouring hole outboard template 6;
E, closed back pouring hole: fluid concrete in sprue gate 61, after concrete curing, remove back pouring hole outboard template 6.
Embodiment 2, as shown in Figure 3, described rearmounted reinforcing bar 8 is weldingly fixed on perforations adding wall connecting reinforcing bar 3.All the other are with embodiment 1.
Operating principle: owing to leaving back pouring hole 2, so when pouring into a mould closed box concrete 1, staff can enter in closed box concrete from back pouring hole, and the template of the four side inwalls removed in closed box concrete and top board and support, securing member.
Back pouring hole is intactly closed with pouring concrete again, so the overall construction intensity of closed box concrete 1 is unaffected.
Claims (2)
1. closed box structural concrete form removal reperforating method, is characterized in that:
A, reserved back pouring hole: when pouring into a mould closed box concrete (1), a reserved back pouring hole (2) on the side body of wall of closed box concrete (1), on back pouring hole (2) inwall, reserved perforations adding is with wall connecting reinforcing bar (3);
B, stripping: after closed box concrete (1) cast cured explosive, staff enters in closed box concrete (1) template of removing four side inwalls in closed box concrete (1) and top board (11) and support, securing member from back pouring hole (2);
C, plant card muscle: on the concrete wall of back pouring hole (2) surrounding with electric drill perforating, plant anchor bar by structure glue and form card muscle (4);
D, fixing after water template: at the upper fixing back pouring hole inner side template (5) of card muscle (4) and back pouring hole outboard template (6), the top of back pouring hole outboard template (6) forms sprue gate (61), back pouring hole inner side template (5) and back pouring hole outboard template (6) are pressed against inside and outside two sides of the concrete wall at back pouring hole (2) place respectively and are tightened together by Screw arbor with nut at both-ends (7), and rearmounted reinforcing bar (8) is placed between back pouring hole inner side template (5) and back pouring hole outboard template (6);
E, closed back pouring hole: fluid concrete in sprue gate (61), after concrete curing, remove back pouring hole outboard template (6).
2. closed box structural concrete form removal reperforating method according to claim 1, is characterized in that: rearmounted reinforcing bar (8) is weldingly fixed on perforations adding wall connecting reinforcing bar (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310158339.XA CN103243915B (en) | 2013-04-28 | 2013-04-28 | Formwork removing and hole sealing method for closed box-shaped structural concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310158339.XA CN103243915B (en) | 2013-04-28 | 2013-04-28 | Formwork removing and hole sealing method for closed box-shaped structural concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103243915A CN103243915A (en) | 2013-08-14 |
| CN103243915B true CN103243915B (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310158339.XA Active CN103243915B (en) | 2013-04-28 | 2013-04-28 | Formwork removing and hole sealing method for closed box-shaped structural concrete |
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| CN (1) | CN103243915B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939044A (en) * | 2017-10-16 | 2018-04-20 | 中国五冶集团有限公司 | A kind of concrete exterior wall reserves component hole plugging device and method |
| CN111794276A (en) * | 2020-07-08 | 2020-10-20 | 中建八局天津建设工程有限公司 | Construction method of basement shear wall and structure formed by construction method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB669171A (en) * | 1950-01-06 | 1952-03-26 | Ian George Bennett | Improvements in or relating to formwork for casting concrete in situ |
| CN1037203C (en) * | 1994-12-03 | 1998-01-28 | 钟莉 | Production method of box-shape beam-board combined structure |
| JPH10121728A (en) * | 1996-10-23 | 1998-05-12 | Fujita Corp | Execution method of concrete joint part in inverted construction |
| CN201704628U (en) * | 2010-03-16 | 2011-01-12 | 中国建筑土木建设有限公司 | Girder-end anchor recess plugging formwork for box girder |
| CN102182317A (en) * | 2011-03-18 | 2011-09-14 | 北京华美科博科技发展有限公司 | Concrete spray steel mesh sandwich formwork cast-in-place shear wall construction method and shear wall |
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