CN106193406B - The Drawing-Core square steel internal mold construction method of pre-tensioning system cored slab - Google Patents
The Drawing-Core square steel internal mold construction method of pre-tensioning system cored slab Download PDFInfo
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- CN106193406B CN106193406B CN201610637034.0A CN201610637034A CN106193406B CN 106193406 B CN106193406 B CN 106193406B CN 201610637034 A CN201610637034 A CN 201610637034A CN 106193406 B CN106193406 B CN 106193406B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/326—Floor structures wholly cast in situ with or without form units or reinforcements with hollow filling elements
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Abstract
The present invention relates to the Drawing-Core square steel internal mold construction methods during construction of pre-tensioning system cored slab.Mainly it is to solve easily to float using benzene plate core using the cored slab core of pre-tensioning system construction at present, combines the problems such as steel core die is yielding and invent.The material used includes：Square steel tube, Steel bar rack, plastic film, steel band, positioning mold；Assembled square steel internal model：It takes several positioning molds in tandem, square steel tube is laid on positioning mold, Steel bar rack is set on square steel tube, against Steel bar rack and put steel pipe, square steel tube outside steel pipe using plastic film with after the completion of Steel bar rack assembly, being wrapped up tightly；Square steel internal model is clamped using baling press and steel band, after cored slab underplate concrete pours, square steel internal model is transported to installation place, bind roof steel bar, web and concrete roof are poured, when concrete strength reaches and removes the requirement of square steel internal model, Steel bar rack, square steel tube are extracted out.Advantage is to be not easy to float, and is unlikely to deform.
Description
Technical field：
The present invention relates to the Drawing-Core square steel internal mold construction methods during construction of pre-tensioning system cored slab.
Background technology：
To the cored slab core using pre-tensioning system construction, traditional construction technique is mainly using benzene plate core or combination steel core
Mould, although both the above cored slab core mould construction comparative maturity, benzene plate core is small due to conducting oneself with dignity, in the construction process
Easily there are rising phenomenon, cause hollow board finished product top plate thickness inadequate.And combine steel core die be one piece of block steel form it is assembled and
Into being susceptible to template deformation, piece, faulting of slab ends, physical dimension cause hollow board finished product internal look poor, tear open there are error
Worker is needed to enter inside during mould to remove one piece of block of template, is lost time, form removal is difficult.
The content of the invention：
The technical problems to be solved by the invention are to provide that a kind of construction quality is good, the cycle is short, are not in floating mould phenomenon,
The Drawing-Core square steel internal mold construction method of the relatively low pre-tensioning system cored slab of construction cost.
What above-mentioned purpose was realized in：The material used using this method is included：Several square steel tubes, several reinforcing bars
Stent, plastic film, steel band, several positioning molds；
The Steel bar rack be octagon, i.e., including upper reinforcing bar, lower reinforcing bar, left reinforcing bar, right reinforcing bar, upper left diagonal reinforcement,
Lower-left diagonal reinforcement, upper right diagonal reinforcement, bottom right diagonal reinforcement, the left end of upper reinforcing bar and the upper end of left reinforcing bar are connected by upper left diagonal reinforcement
It connects, the right end of upper reinforcing bar is connected with the upper end of right reinforcing bar by upper right diagonal reinforcement, and the lower end of the left end and left reinforcing bar of lower reinforcing bar leads to
Lower-left diagonal reinforcement connection is crossed, the right end of lower reinforcing bar is connected with the lower end of right reinforcing bar by bottom right diagonal reinforcement；
The positioning mold includes two supporting rods, and the both ends of connecting rod are connected fixation with two supporting rods respectively, also
Including left oblique pull reinforcing bar and right oblique pull reinforcing bar, the upper end of left oblique pull reinforcing bar is fixed on the lower part of a supporting rod, left oblique pull reinforcing bar
Lower end be fixed in connecting rod, the upper end of right oblique pull reinforcing bar is fixed on the lower part of another supporting rod, under right oblique pull reinforcing bar
End is fixed in connecting rod；
Assembled square steel internal model：It takes several positioning molds in tandem, square steel tube is laid on to the connecting rod of positioning mold
And on left oblique pull reinforcing bar and right oblique pull reinforcing bar, it is spaced a distance on square steel tube and a Steel bar rack is set, against reinforcement bar support
Left reinforcing bar, upper left diagonal reinforcement, right reinforcing bar, upper right diagonal reinforcement, the upper reinforcing bar of frame put square steel tube, and square steel tube is assembled with Steel bar rack
After finishing, it is tight using plastic film package outside square steel tube, and ensure the smooth corrugationless of Plastic film surface, main application
Be ensure square steel internal model and concrete efficiently separate and the flatness on concrete surface；After plastic film wraps up, with the lumps of wood gently
Beat square steel tube, make square steel tube in the same plane, corner angle are clearly demarcated, avoid the occurrence of faulting of slab ends phenomenon, finally using baling press and
Steel band clamps square steel internal model, ensures the overall stability and physical dimension of square steel internal model, when cored slab underplate concrete pours
After, square steel internal model from positioning mold is transported to installation place, roof steel bar is bound, after reinforcing bar is bound, starts to pour
Web and concrete roof when concrete strength reaches and can remove the requirement of square steel internal model, Steel bar rack are taken out, then general side
Steel pipe is extracted out one by one.
It is an advantage of the invention that：For Drawing-Core square steel internal model from great, appearance disclosure satisfy that the physical dimension of cored slab, and tear open
Mould is convenient.In form removal, the Steel bar rack taking-up in square steel internal model can be extracted square steel tube out one by one, form removal is convenient, section
Make an appointment, the shortcomings that Drawing-Core square steel internal model avoids both the above conventional core mold, ensure that hollow board finished product top plate thickness and
Protective layer thickness, and internal look is smooth straight.
Description of the drawings：
Fig. 1 is square steel internal model assembled state schematic diagram in the present invention, and 1 is Steel bar rack in figure, and 2 be positioning mold, 3 sides of being
Steel pipe；
Fig. 2 is the structure diagram of Steel bar rack in the present invention, and 1-1 is upper reinforcing bar in figure, and 1-2 is lower reinforcing bar, and 1-3 is left
Reinforcing bar, 1-4 are right reinforcing bars, and 1-5 is upper left diagonal reinforcement, and 1-6 is upper right diagonal reinforcement, and 1-7 is lower-left diagonal reinforcement, and 1-8 is that bottom right is oblique
Reinforcing bar；
Fig. 3 is the structure diagram of positioning mold in the present invention, and 2-1 is supporting rod in figure, and 2-2 be connecting rod, 2-3
It is left oblique pull reinforcing bar, 2-4 be right oblique pull reinforcing bar.
Specific embodiment：
The present invention will be further described below in conjunction with the accompanying drawings：
The material used using this method is included：If several square steel tubes, several Steel bar racks, plastic film, steel band,
Dry positioning mold；
The Steel bar rack be octagon, i.e., including upper reinforcing bar, lower reinforcing bar, left reinforcing bar, right reinforcing bar, upper left diagonal reinforcement,
Lower-left diagonal reinforcement, upper right diagonal reinforcement, bottom right diagonal reinforcement, the left end of upper reinforcing bar and the upper end of left reinforcing bar are connected by upper left diagonal reinforcement
It connects, the right end of upper reinforcing bar is connected with the upper end of right reinforcing bar by upper right diagonal reinforcement, and the lower end of the left end and left reinforcing bar of lower reinforcing bar leads to
Lower-left diagonal reinforcement connection is crossed, the right end of lower reinforcing bar is connected with the lower end of right reinforcing bar by bottom right diagonal reinforcement；
The positioning mold includes two supporting rods, and the both ends of connecting rod are connected fixation with two supporting rods respectively, also
Including left oblique pull reinforcing bar and right oblique pull reinforcing bar, the upper end of left oblique pull reinforcing bar is fixed on the lower part of a supporting rod, left oblique pull reinforcing bar
Lower end be fixed in connecting rod, the upper end of right oblique pull reinforcing bar is fixed on the lower part of another supporting rod, under right oblique pull reinforcing bar
End is fixed in connecting rod；
Assembled square steel internal model：Take three positioning molds in tandem, by square steel tube be laid on positioning mold connecting rod and
On left oblique pull reinforcing bar and right oblique pull reinforcing bar, at interval of 1.5 meters of settings, one Steel bar rack on square steel tube, Steel bar rack against
Left reinforcing bar, upper left diagonal reinforcement, right reinforcing bar, upper right diagonal reinforcement, upper reinforcing bar put square steel tube, square steel tube and the assembled completion of Steel bar rack
Afterwards, it is tight using plastic film package outside square steel tube, and ensure the smooth corrugationless of Plastic film surface, it is mainly used for protecting
Card square steel internal model and concrete efficiently separate and the flatness on concrete surface；After plastic film wraps up, gently beaten with the lumps of wood
Square steel tube makes square steel tube in the same plane, and corner angle are clearly demarcated, avoids the occurrence of faulting of slab ends phenomenon, finally using baling press and steel band
Square steel internal model is clamped, ensures the overall stability and physical dimension of square steel internal model, when cored slab underplate concrete pours end
Afterwards, square steel internal model from positioning mold is transported to installation place, binds roof steel bar, after reinforcing bar is bound, start to pour web
And concrete roof, when concrete strength reaches and can remove the requirement of square steel internal model, Steel bar rack is taken out, then by square steel tube
It extracts out one by one.
Drawing-Core square steel tube internal model possess overall stiffness is big, work efficiency is high, strong applicability, dismounting it is simple and easy to do, the technology is not
Reduced by only due to narrow space in cored slab and caused by core installation, to remove work difficulty big, ensureing cored slab quality
While, cost is also effectively reduced, shortens construction period.
Claims (1)
1. the Drawing-Core square steel internal mold construction method of pre-tensioning system cored slab, it is characterized in that：The material used includes：Several square steel
Pipe, several Steel bar racks, plastic film, steel band, several positioning molds；
The Steel bar rack is octagon, i.e., including upper reinforcing bar, lower reinforcing bar, left reinforcing bar, right reinforcing bar, upper left diagonal reinforcement, lower-left
Diagonal reinforcement, upper right diagonal reinforcement, bottom right diagonal reinforcement, the left end of upper reinforcing bar are connected with the upper end of left reinforcing bar by upper left diagonal reinforcement, on
The right end of reinforcing bar is connected with the upper end of right reinforcing bar by upper right diagonal reinforcement, and the left end of lower reinforcing bar passes through lower-left with the lower end of left reinforcing bar
Diagonal reinforcement connects, and the right end of lower reinforcing bar is connected with the lower end of right reinforcing bar by bottom right diagonal reinforcement；
The positioning mold includes two supporting rods, and the both ends of connecting rod are connected fixation with two supporting rods respectively, further include
Left oblique pull reinforcing bar and right oblique pull reinforcing bar, the upper end of left oblique pull reinforcing bar are fixed on the lower part of a supporting rod, under left oblique pull reinforcing bar
End is fixed in connecting rod, and the upper end of right oblique pull reinforcing bar is fixed on the lower part of another supporting rod, and the lower end of right oblique pull reinforcing bar is consolidated
It is scheduled in connecting rod；
Assembled square steel internal model：It takes several positioning molds in tandem, square steel tube is laid on to connecting rod and the left side of positioning mold
On oblique pull reinforcing bar and right oblique pull reinforcing bar, one Steel bar rack is set at interval of certain distance on square steel tube, againsts Steel bar rack
Left reinforcing bar, upper left diagonal reinforcement, right reinforcing bar, upper right diagonal reinforcement, upper reinforcing bar put square steel tube；
Square steel tube with after the completion of Steel bar rack assembly, and ensureing plastic film outside square steel tube using plastic film package tightly
Surfacing corrugationless；After plastic film wraps up, square steel tube is gently beaten with the lumps of wood, is generally aligned in the same plane square steel tube
On, corner angle are clearly demarcated, avoid the occurrence of faulting of slab ends phenomenon, finally clamped square steel internal model using baling press and steel band, ensure square steel internal model
Overall stability and physical dimension, after cored slab underplate concrete pours, square steel internal model is transported from positioning mold
To installation place, roof steel bar is bound, after reinforcing bar is bound, starts to pour web and concrete roof, treats that concrete strength reaches
To when can remove the requirement of square steel internal model, Steel bar rack is taken out, then extracts square steel tube one by one out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610637034.0A CN106193406B (en) | 2016-08-07 | 2016-08-07 | The Drawing-Core square steel internal mold construction method of pre-tensioning system cored slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610637034.0A CN106193406B (en) | 2016-08-07 | 2016-08-07 | The Drawing-Core square steel internal mold construction method of pre-tensioning system cored slab |
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| CN106193406A CN106193406A (en) | 2016-12-07 |
| CN106193406B true CN106193406B (en) | 2018-05-25 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106696076A (en) * | 2016-12-19 | 2017-05-24 | 中交路桥建设有限公司 | Supporting method for hollow plate inner mold prefabricated through pre-tensioning method |
| CN107901197A (en) * | 2017-11-07 | 2018-04-13 | 内蒙古路桥集团有限责任公司 | A kind of prefabricated case beam square steel tube core |
| CN110409308A (en) * | 2019-07-31 | 2019-11-05 | 佛山科学技术学院 | A kind of secondary construction method for pouring cored slab |
| CN112536896A (en) * | 2019-09-20 | 2021-03-23 | 黑龙江农垦建工路桥有限公司 | Ring-axis symmetric supporting-fixing type hollow slab core mold construction process |
| CN112049018A (en) * | 2020-09-10 | 2020-12-08 | 中铁十四局集团第四工程有限公司 | Folding core mould of hollow slab beam for highway construction |
| CN113021584A (en) * | 2021-03-04 | 2021-06-25 | 临沂市政集团有限公司 | Pre-tensioning prestressed hollow slab umbrella support splicing type core mold and construction process thereof |
| CN114991197B (en) * | 2022-08-03 | 2022-11-11 | 中国二十二冶集团有限公司 | Cup foundation formwork construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3802996B2 (en) * | 1999-05-07 | 2006-08-02 | 戸田建設株式会社 | Construction method of flat slabs using steel pipe concrete columns |
| CN101059014B (en) * | 2007-05-15 | 2010-05-19 | 广东省建筑设计研究院 | Steel pipe hollow concrete building floor and construction method thereof |
| CN101619602B (en) * | 2009-07-14 | 2011-12-07 | 南通宏华建筑安装有限公司 | Construction method of cast-in-place concrete cored slabs with self stationary high-strength thin-wall pipe internal mold |
| CN203462757U (en) * | 2013-09-13 | 2014-03-05 | 中铁十九局集团第二工程有限公司 | Internal steel mold for hollow slab girder construction |
| CN104139451A (en) * | 2014-08-15 | 2014-11-12 | 中石化胜利建设工程有限公司 | Concrete core slab prefabricated internal mold, assembling frame and assembling method |
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Effective date of registration: 20211207 Address after: Room 901, building 2, Zhongsu century building, 425 Xinjian North Road, Yuyao City, Ningbo City, Zhejiang Province, 315400 Patentee after: China Railway 19th Bureau Group East China Engineering Co.,Ltd. Patentee after: China Railway 19th Bureau Group No.2 Engineering Co., Ltd Address before: 111000 No. 17 Heping Road, Baita District, Liaoning, Liaoyang Patentee before: CHINA RAILWAY 19TH BUREAU GROUP 2ND Co.,Ltd. |