CN104963431A - Corner structural column construction method - Google Patents
Corner structural column construction method Download PDFInfo
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- CN104963431A CN104963431A CN201510421278.0A CN201510421278A CN104963431A CN 104963431 A CN104963431 A CN 104963431A CN 201510421278 A CN201510421278 A CN 201510421278A CN 104963431 A CN104963431 A CN 104963431A
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- 238000010276 construction Methods 0.000 title claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 230000002787 reinforcement Effects 0.000 claims abstract description 5
- 230000003014 reinforcing Effects 0.000 claims description 14
- 210000003491 Skin Anatomy 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 3
- 210000000282 Nails Anatomy 0.000 claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 239000011449 brick Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 230000000875 corresponding Effects 0.000 claims description 3
- 238000009408 flooring Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 238000009416 shuttering Methods 0.000 claims description 3
- 239000002390 adhesive tape Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 230000001429 stepping Effects 0.000 claims description 2
- 240000003917 Bambusa tulda Species 0.000 claims 1
- 238000009415 formwork Methods 0.000 abstract 3
- 241001330002 Bambuseae Species 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000668709 Dipterocarpus costatus Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Abstract
The invention discloses a corner structural column construction method. The corner structural column construction method specifically comprises the steps that the positions of walls are determined firstly according to storey positioning lines; the perpendicular walls on the two sides of a corner structural column are constructed, a combed joint is reserved between the two side walls, and a steel reinforcement cage and tie bars are arranged according to the standard; an inner formwork and an outer formwork are arranged on the inner side and the outer side of the corner structural column respectively, and screw sleeves are reserved at the specific positions of the formworks; the formworks of the structural column are reinforced by means of L-shaped angle steel, and the angle steel is fixed through screws; concrete is poured into a pouring cavity of the structural column for several times after reinforcement; the formworks are removed after the concrete is solidified, and a finished product is protected. The corner structural column construction method has the advantages that the angle steel is taken as corner structural column formwork main ridges to reinforce the formworks, the strength is high, and the number of times of turnover is large; long oval adjustment holes are formed in the angle steel, both the number of the screws and the distance between the screws can be adjusted according to different shapes of structural columns, and stereotyping and standardization are achieved.
Description
Technical field
The present invention relates to a kind of construction techniques, particularly a kind of corner Constructional Col-umn Construction method.
Background technology
Constructional column refers to the predetermined portion at masonry house body of wall, by design or constructional reinforcement, and by the concrete column that the sequence of construction of placing of concrete post after first building a wall is made.Constructional column master if it were not for bearing vertical load, but to resist the transverse load such as shearing, antidetonation, and be usually arranged on the half space place of staircase, longitudinal cross wall junction, the corner of wall, wall reaches five meters and above middle part.
In the whole engineering building wall of large area construction work, the secondary structure component engineering quantitys such as constructional column, concrete door window frame are large, therefore the construction quality of the secondary structures such as constructional column directly affects the target of providing quality goods or brilliant of its agent structure.In implementation process, because constructional column physical dimension is various, reinforce complexity difference.Particularly L-type corner constructional column, traditional construction method adopts two steel pipe to reinforce template as template master is stupefied, need to overcome because screw rod is not through walls, cause reinforcing the problem without the strong strong point, the tension force of the both direction of constructional column external corner is often not in place owing to reinforcing, and is difficult to guarantee constructional column verticality and external corner construction quality perception degree.
Summary of the invention
The technical problem to be solved in the present invention is to provide the corner constructional column building method that a kind of reinforcing puts in place, ensures constructional column verticality and yin, yang angle construction quality perception degree.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of corner Constructional Col-umn Construction method, and its innovative point is: described construction method concrete steps are as follows:
(1) unwrapping wire: according to floor location line, releases the position of body of wall;
(2) building wall, installation reinforcing bar: build corner constructional column both sides orthogonal body of wall A and body of wall B by laying bricks or stones, indwelling horse tooth trough between the body of wall of corner constructional column both sides, first stepping back retreats into, horse tooth trough wants consistent, then according to design and code requirement assembling reinforcement cage and install tension rib;
(3) shuttering: template comprises the inner formword and exterior sheathing that are positioned at both sides inside and outside corner constructional column; Wherein inner formword is two pieces, stands on inside corner constructional column in L-type; Exterior sheathing is two pieces, stands on outside corner constructional column in L-type; Template need at template assigned address indwelling screw sleeve after having stood; Now exterior sheathing, just formed between inner formword and body of wall one constructional column cast cavity;
(4) reinforce: respectively in each template arranged outside along the flitch of constructional column long axis direction, fixed by nail between flitch and template; Be close to the angle steel that the position corresponding with reserved screw sleeve, flitch surface arranges L-type, the both sides of angle steel parallel with two groups of templates respectively; Angle steel is provided with the oblong adjustment hole stretched out for screw rod, screw rod to be placed in screw sleeve and to extend out past nut check from oblong adjustment hole fixes angle steel, realizes the reinforcing to corner constructional column template;
(5) pouring concrete: at corner constructional column making dustpan suitable for reading mouth, by dustpan mouth to concrete in constructional column graded casting cavity, and with skin hammer knock constructional column gradation vibrated concrete, until concrete curing, solidify after can form corner constructional column;
(6) form removal: the form removable of will install after concrete setting, during form removal, collision free damages external corner, and by dustpan chisels except polishing, the structure after form removable is corner constructional column;
(7) finished product protection: bamboo slab rubber will be adopted to protect to external corner after form removal, will set up warning sign when concrete is not dry.
Further, in described step (2), corner constructional column reinforcing cage, through to top, upper end bar is fixed embedded part with the perforating of 8mm steel expansion tube and is welded with it on beam, plate relevant position, and lower end bar anchors in flooring layer.
Further, in described step (3), need according to on-the-spot horse tooth trough size preparation template, template size moves back the large 200mm of raft with horse tooth trough and is as the criterion; Template overlap with masonry junction should paste sponge adhesive tape in case concreting time there is spillage phenomenon.
Further, in described step (3), the particular location of screw sleeve is: rational height is that per pass horse tooth trough moves back 1/2 of raft height; Arranging horizontal level is that per pass horse tooth trough moves back within outside raft, horizontal range body of wall 60mm place.
The invention has the advantages that:
(1) adopt angle steel to reinforce template as corner constructional column template master is stupefied, rigidity is strong, and the number of turnover is many;
(2) oblong adjustment hole is set on angle steel, according to the difference of constructional column shape, screw rod quantity and screw rod spacing all adjustable, accomplished regularization, standardization, ensure that the construction quality of constructional column, improve the impression quality of secondary structure in masonry project;
(3) during fluid concrete, at constructional column making dustpan suitable for reading mouth, and knock constructional column gradation vibrated concrete with skin hammer, can prevent it from occurring the phenomenons such as voids and pits.
Accompanying drawing explanation
Fig. 1 is a kind of corner Constructional Col-umn Construction of the present invention method L-type constructional column reinforcing figure;
Fig. 2 is a kind of corner Constructional Col-umn Construction of the present invention method screw rod plane of orientation figure;
Fig. 3 is a kind of corner Constructional Col-umn Construction of the present invention method 1-1 sectional drawing.
Detailed description of the invention
The invention discloses a kind of corner Constructional Col-umn Construction method, the concrete steps of this building method are as follows:
(1) unwrapping wire: according to floor location line, releases the position of body of wall;
(2) building wall and installation reinforcing bar: build corner constructional column both sides orthogonal body of wall A1 and body of wall B8 by laying bricks or stones, indwelling horse tooth trough 10 between the body of wall of corner constructional column both sides, horse tooth trough 10 is retreated and is wanted consistent, stretch out 60mm every 250mm; Then the tension rib 11 that between colligation corner constructional column reinforcing cage 3 and both sides body of wall, every 500mm height is arranged; Corner constructional column reinforcing cage 3, through to top, upper end bar is fixed embedded part with the perforating of 8mm steel expansion tube and is welded with it on beam, plate relevant position, and lower end bar anchors in flooring layer;
(3) shuttering: template comprises the inner formword 5 and exterior sheathing 2 that are positioned at both sides inside and outside corner constructional column; Wherein inner formword 5 is two pieces, stands on inside corner constructional column in L-type; Exterior sheathing 2 is two pieces, stands on outside corner constructional column in L-type; Template need at template assigned address indwelling screw sleeve after having stood; Now exterior sheathing 2, just formed between inner formword 5 and body of wall one constructional column cast cavity;
(4) reinforce: respectively at the flitch 4 of each template arranged outside along constructional column long axis direction, fixed by nail between flitch 4 and template; Be close to the angle steel 7 that the position corresponding with reserved screw sleeve, flitch 4 surface arranges L-type, the both sides of angle steel 7 parallel with two groups of templates respectively; Angle steel 7 is provided with the oblong adjustment hole 9 stretched out for screw rod, screw rod 6 to be placed in screw sleeve and to extend out past nut check from oblong adjustment hole 9 fixes angle steel 7, realizes the reinforcing to corner constructional column template;
(5) pouring concrete: at corner constructional column making dustpan suitable for reading mouth, by dustpan mouth to concrete in constructional column graded casting cavity, and with skin hammer knock constructional column gradation vibrated concrete, until concrete curing, solidify after can form corner constructional column;
(6) form removal: the form removable of will install after concrete setting, during form removal, collision free damages external corner, and by dustpan chisels except polishing, the structure after form removable is corner constructional column;
(7) finished product protection: bamboo slab rubber will be adopted to protect to external corner after form removal, will set up warning sign when concrete is not dry.
More than show and describe general principle of the present invention and principal character.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and manual just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (4)
1. a corner Constructional Col-umn Construction method, described construction method concrete steps are as follows:
(1) unwrapping wire: according to floor location line, releases the position of body of wall;
(2) building wall, installation reinforcing bar: build corner constructional column both sides orthogonal body of wall A and body of wall B by laying bricks or stones, indwelling horse tooth trough between the body of wall of corner constructional column both sides, first stepping back retreats into, horse tooth trough wants consistent, then according to design and code requirement assembling reinforcement cage and install tension rib;
(3) shuttering: template comprises the inner formword and exterior sheathing that are positioned at both sides inside and outside corner constructional column; Wherein inner formword is two pieces, stands on inside corner constructional column in L-type; Exterior sheathing is two pieces, stands on outside corner constructional column in L-type; Template need at template assigned address indwelling screw sleeve after having stood; Now exterior sheathing, just formed between inner formword and body of wall one constructional column cast cavity;
(4) reinforce: respectively in each template arranged outside along the flitch of constructional column long axis direction, fixed by nail between flitch and template; Be close to the angle steel that the position corresponding with reserved screw sleeve, flitch surface arranges L-type, the both sides of angle steel parallel with two groups of templates respectively; Angle steel is provided with the oblong adjustment hole stretched out for screw rod, screw rod to be placed in screw sleeve and to extend out past nut check from oblong adjustment hole fixes angle steel, realizes the reinforcing to corner constructional column template;
(5) pouring concrete: at corner constructional column making dustpan suitable for reading mouth, by dustpan mouth to concrete in constructional column graded casting cavity, and with skin hammer knock constructional column gradation vibrated concrete, until concrete curing, solidify after can form corner constructional column;
(6) form removal: the form removable of will install after concrete setting, during form removal, collision free damages external corner, and by dustpan chisels except polishing, the structure after form removable is corner constructional column;
(7) finished product protection: bamboo slab rubber will be adopted to protect to external corner after form removal, will set up warning sign when concrete is not dry.
2. a kind of corner Constructional Col-umn Construction method according to claim 1, it is characterized in that: in described step (2), corner constructional column reinforcing cage, through to top, upper end bar is fixed embedded part with the perforating of 8mm steel expansion tube and is welded with it on beam, plate relevant position, and lower end bar anchors in flooring layer.
3. a kind of corner Constructional Col-umn Construction method according to claim 1, is characterized in that: in described step (3), need according to on-the-spot horse tooth trough size preparation template, and template size moves back the large 200mm of raft with horse tooth trough and is as the criterion; Template overlap with masonry junction should paste sponge adhesive tape in case concreting time there is spillage phenomenon.
4. a kind of corner Constructional Col-umn Construction method according to claim 1, it is characterized in that: in described step (3), the particular location of screw sleeve is: rational height is that per pass horse tooth trough moves back 1/2 of raft height; Arranging horizontal level is that per pass horse tooth trough moves back within outside raft, horizontal range body of wall 60mm place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510421278.0A CN104963431A (en) | 2015-07-17 | 2015-07-17 | Corner structural column construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510421278.0A CN104963431A (en) | 2015-07-17 | 2015-07-17 | Corner structural column construction method |
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| CN104963431A true CN104963431A (en) | 2015-10-07 |
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| CN201510421278.0A Pending CN104963431A (en) | 2015-07-17 | 2015-07-17 | Corner structural column construction method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569268A (en) * | 2015-12-30 | 2016-05-11 | 华北冶建工程建设有限公司 | Edge guarding angle iron embedding method of industrial workshop column |
| CN106284413A (en) * | 2016-10-31 | 2017-01-04 | 朱凤起 | A kind of piping lane section of jurisdiction |
| CN106320376A (en) * | 2016-10-31 | 2017-01-11 | 朱凤起 | Pipe gallery |
| CN106592974A (en) * | 2016-10-14 | 2017-04-26 | 北京崇建工程有限公司 | Building external wall window masonry construction method |
| CN109208902A (en) * | 2018-09-19 | 2019-01-15 | 中国十七冶集团有限公司 | A kind of corner constructional column standardization bracing reinforcement device |
| CN109339439A (en) * | 2018-11-29 | 2019-02-15 | 中国冶集团有限公司 | Constructional column template construction device and technique |
| CN109723215A (en) * | 2017-10-31 | 2019-05-07 | 上海宝冶集团有限公司 | Constructional column finished product dustpan mouth construction method |
| CN110158920A (en) * | 2019-06-04 | 2019-08-23 | 中铁城市规划设计研究院有限公司 | A kind of underground garage car entrance wall corner-pillar safeguard structure |
| CN111042386A (en) * | 2019-11-28 | 2020-04-21 | 江苏永联精筑建设集团有限公司 | Novel constructional column anti-slurry-overflowing construction process |
| CN113565321A (en) * | 2021-09-05 | 2021-10-29 | 中建八局第四建设有限公司 | Corner constructional column reinforcing method and mold |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2670427B2 (en) * | 1994-10-13 | 1997-10-29 | 株式会社松村組 | Construction method of reinforced concrete columns and reinforcing bar positioning jig used for the implementation |
| CN2706548Y (en) * | 2004-04-29 | 2005-06-29 | 蒋次杰 | Mould for moulding column |
| CN101307629A (en) * | 2008-07-03 | 2008-11-19 | 雷现治 | Fastener type self-decoration composite heat insulation high layer dwelling building module and its construction method |
| CN201771181U (en) * | 2010-08-19 | 2011-03-23 | 叶香竹 | Structure of wall corner constructional column mold plate |
| CN102979322A (en) * | 2012-12-31 | 2013-03-20 | 上海市建筑科学研究院(集团)有限公司 | Method for integrally reinforcing masonry structure by sectional steel combined ring beams and construction columns |
| CN203334661U (en) * | 2013-06-29 | 2013-12-11 | 平煤神马建工集团有限公司土建处 | Scaffold-hole-free formwork construction device for brick-concrete structure construction column |
| CN203373968U (en) * | 2013-06-28 | 2014-01-01 | 中建七局第二建筑有限公司 | Filler wall constructional column formwork structure |
| CN203441100U (en) * | 2013-09-05 | 2014-02-19 | 靖崇祥 | Formwork structure of constructional column |
| CN103758358A (en) * | 2014-01-06 | 2014-04-30 | 北京筑福国际工程技术有限责任公司 | Steel plate angle iron combined constructional column and anchor adhering steel plate brickwork reinforcing structure and construction method |
| CN104314306A (en) * | 2014-11-05 | 2015-01-28 | 安徽水利开发股份有限公司 | Construction column formwork capable of achieving one-time integrated pouring forming of concrete |
| CN204456853U (en) * | 2014-12-19 | 2015-07-08 | 山西省第三建筑工程公司 | Secondary structure constructional column formwork erection positioner |
-
2015
- 2015-07-17 CN CN201510421278.0A patent/CN104963431A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2670427B2 (en) * | 1994-10-13 | 1997-10-29 | 株式会社松村組 | Construction method of reinforced concrete columns and reinforcing bar positioning jig used for the implementation |
| CN2706548Y (en) * | 2004-04-29 | 2005-06-29 | 蒋次杰 | Mould for moulding column |
| CN101307629A (en) * | 2008-07-03 | 2008-11-19 | 雷现治 | Fastener type self-decoration composite heat insulation high layer dwelling building module and its construction method |
| CN201771181U (en) * | 2010-08-19 | 2011-03-23 | 叶香竹 | Structure of wall corner constructional column mold plate |
| CN102979322A (en) * | 2012-12-31 | 2013-03-20 | 上海市建筑科学研究院(集团)有限公司 | Method for integrally reinforcing masonry structure by sectional steel combined ring beams and construction columns |
| CN203373968U (en) * | 2013-06-28 | 2014-01-01 | 中建七局第二建筑有限公司 | Filler wall constructional column formwork structure |
| CN203334661U (en) * | 2013-06-29 | 2013-12-11 | 平煤神马建工集团有限公司土建处 | Scaffold-hole-free formwork construction device for brick-concrete structure construction column |
| CN203441100U (en) * | 2013-09-05 | 2014-02-19 | 靖崇祥 | Formwork structure of constructional column |
| CN103758358A (en) * | 2014-01-06 | 2014-04-30 | 北京筑福国际工程技术有限责任公司 | Steel plate angle iron combined constructional column and anchor adhering steel plate brickwork reinforcing structure and construction method |
| CN104314306A (en) * | 2014-11-05 | 2015-01-28 | 安徽水利开发股份有限公司 | Construction column formwork capable of achieving one-time integrated pouring forming of concrete |
| CN204456853U (en) * | 2014-12-19 | 2015-07-08 | 山西省第三建筑工程公司 | Secondary structure constructional column formwork erection positioner |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569268A (en) * | 2015-12-30 | 2016-05-11 | 华北冶建工程建设有限公司 | Edge guarding angle iron embedding method of industrial workshop column |
| CN106592974A (en) * | 2016-10-14 | 2017-04-26 | 北京崇建工程有限公司 | Building external wall window masonry construction method |
| CN106284413A (en) * | 2016-10-31 | 2017-01-04 | 朱凤起 | A kind of piping lane section of jurisdiction |
| CN106320376A (en) * | 2016-10-31 | 2017-01-11 | 朱凤起 | Pipe gallery |
| CN109723215A (en) * | 2017-10-31 | 2019-05-07 | 上海宝冶集团有限公司 | Constructional column finished product dustpan mouth construction method |
| CN109208902A (en) * | 2018-09-19 | 2019-01-15 | 中国十七冶集团有限公司 | A kind of corner constructional column standardization bracing reinforcement device |
| CN109339439A (en) * | 2018-11-29 | 2019-02-15 | 中国冶集团有限公司 | Constructional column template construction device and technique |
| CN109339439B (en) * | 2018-11-29 | 2021-05-18 | 中国一冶集团有限公司 | Constructional column formwork construction device and process |
| CN110158920A (en) * | 2019-06-04 | 2019-08-23 | 中铁城市规划设计研究院有限公司 | A kind of underground garage car entrance wall corner-pillar safeguard structure |
| CN111042386A (en) * | 2019-11-28 | 2020-04-21 | 江苏永联精筑建设集团有限公司 | Novel constructional column anti-slurry-overflowing construction process |
| CN113565321A (en) * | 2021-09-05 | 2021-10-29 | 中建八局第四建设有限公司 | Corner constructional column reinforcing method and mold |
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Application publication date: 20151007 |
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