CN1644835A - Construction for steel bar reinforced hollow concrete roof cast-in-situs - Google Patents

Construction for steel bar reinforced hollow concrete roof cast-in-situs Download PDF

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Publication number
CN1644835A
CN1644835A CN 200510031137 CN200510031137A CN1644835A CN 1644835 A CN1644835 A CN 1644835A CN 200510031137 CN200510031137 CN 200510031137 CN 200510031137 A CN200510031137 A CN 200510031137A CN 1644835 A CN1644835 A CN 1644835A
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CN
China
Prior art keywords
situs
steel bar
reinforced hollow
internal mold
concrete roof
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CN 200510031137
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Chinese (zh)
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CN1295408C (en
Inventor
姜胜清
李巨波
杨北辉
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姜胜清
李巨波
杨北辉
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Application filed by 姜胜清, 李巨波, 杨北辉 filed Critical 姜胜清
Priority to CNB2005100311374A priority Critical patent/CN1295408C/en
Publication of CN1644835A publication Critical patent/CN1644835A/en
Application granted granted Critical
Publication of CN1295408C publication Critical patent/CN1295408C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A construction method for in-situ pouring the hollow reinforced concrete roof includes such steps as laying shuttering boards, setting out, arranging internal form, installing the fixing frame for fixing the internal form to bottom reinforcement, arranging top reinforcement and connecting bar, pouring concrete, and curing. Its advantages are high productivity, correct location and low cost.

Description

The job practices of steel bar reinforced hollow concrete roof cast-in-situs
Technical field:
The present invention relates to building field, refer to a kind of job practices of steel bar reinforced hollow concrete roof cast-in-situs especially.
Background technology:
The making of steel bar reinforced hollow concrete roof cast-in-situs at present all is by hollow or solid internal mold (or claiming core) is set in concrete, then when arriving suitable intensity, extracts the concrete setting and harden internal mold out, reinforced concrete hollow floorslab has been owing to reduced the consumption of concrete and the deadweight of structure, thereby widely in the application project structure.But the internal mold of using on the engineering is a kind of thin wall cylinder structure, is made up of pipe and two plugs, will adopt immobilization material that internal mold is fixed in construction, is not shifted in work progress to guarantee internal mold.Owing to need to be provided with connecting elements or immobilization material in the work progress, as tying up the anti-floating reinforcing bar on the core pipe and with measures such as iron wire are fixing.It is very inconvenient to construct, and construction efficiency is low, and the cost height because internal mold anti-floating ability easily is shifted, makes internal mold be difficult to accurately locate by designing requirement simultaneously, causes rib of slab sectional dimension error bigger, makes beaer can be subjected to serious restriction.
Summary of the invention:
Technical problem to be solved by this invention is: at the deficiencies in the prior art, provide a kind of use dedicated fixed support, make internal mold easy for installation, accurate positioning, the job practices of the steel bar reinforced hollow concrete roof cast-in-situs that the anti-floating ability of internal mold is strong in the construction.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of job practices of steel bar reinforced hollow concrete roof cast-in-situs is:
A, laying template;
Reinforcing bar at the bottom of b, the placing plate;
C, unwrapping wire and lay internal mold;
D, installing fixed support are connected and fixed reinforcing bar at the bottom of internal mold and the plate;
E, placing plate top reinforcing bar and connecting reinforcement;
F, pour concrete, maintenance.
Described fixed support is provided with the opening anchor clamps of band opening, and described fixed support and internal mold are connected as a single entity, or is connected and fixed by hook/circle and internal mold.Described hook/enclose is U-shaped, circle, ellipse, square top and round bottom shape, polygon.Die topography is cylindrical shell, cone, block in described.Described internal mold axis direction is parallel to each other, vertical with end reinforcing bar direction or intersect.
Among the present invention, can apply prestressing force at the bottom of the part plate and plate top reinforcing bar and form prestressed structure.
Described concrete can vibrate in casting process, or adopts self-compacting concrete, and promptly concrete need not vibrate in casting process.
Compared with prior art, advantage of the present invention is: owing to used fixed support, use technology such as prestressing force and self-compacting concrete simultaneously, make internal mold easy for installation, accurate positioning has not only improved the internal mold installation efficiency, has increased the anti-floating ability of internal mold in the construction simultaneously, and the saving cost, can be widely used in the reinforced concrete structure.
Description of drawings:
Fig. 1 is the perspective view of the embodiment of the invention.
Fig. 2 is the connection diagram of reinforcing bar at the bottom of internal mold of the present invention and the plate.
Fig. 3-Fig. 6 is fixed support of the present invention and hook/circle connection diagram.
Fig. 7-Figure 14 is hook of the present invention/circle embodiment schematic diagram.
Figure 15-Figure 19 is an interior die topography schematic diagram among the present invention.
The figure number explanation:
1 soffit formwork, 2 side templates
Reinforcing bar 4 internal molds at the bottom of 3 plates
5 plate top reinforcing bar 6 fixed supports
7 opening anchor clamps, 8 concretes
9 connecting reinforcements, 10 hook/circles
11 reinforcing bars that are connected with internal mold
The specific embodiment:
As shown in Figures 1 and 2, in the present embodiment, template comprises soffit formwork 1 and side template 2, for the making of reinforced concrete floor provides the making platform, controls the shape and size of floor simultaneously.Template is fixed by they sup-port, and template can adopt punching block, bamboo mould or other composite shuttering.
Reinforcing bar is divided into reinforcing bar 3 and plate top reinforcing bar 5 at the bottom of the plate, be connected with connecting reinforcement 9 between reinforcing bar 3 and the plate top reinforcing bar 5 at the bottom of the plate, the formation cage of reinforcement that fuses can apply prestressing force by stretch-draw to the part reinforcing bar in case of necessity and form prestressed structure, and the span of plate and accommodation are increased.
In the installation of internal mold 4, can be on request on soffit formwork 1 and reinforcing bar 3 at the bottom of the plate unwrapping wire determine the position and the direction of internal mold 4, be the position mark position on reinforcing bar 3 at the bottom of soffit formwork 1 and the plate in advance of internal mold 4, then internal mold 4 installed exactly, so the internal mold accurate positioning.Internal mold 4 axis directions can be mounted to parallel to each other, vertical with 3 directions of reinforcing bar at the bottom of the plate or intersect.
As shown in Figure 2, an end of fixed support 6 has opening anchor clamps 7, is used to clamp reinforcing bar, and the shape of opening anchor clamps 7 can be circle, ellipse, flute profile or other shape.Fixed support 6 can be connected as a single entity with internal mold 4 or be connected by hook/circle 10.When fixed support 6 is connected as a single entity with internal mold 4, can directly place internal mold 4, with the opening anchor clamps 7 and reinforcing bar 3 clampings at the bottom of the plate of fixed support 6, internal mold 4 is connected with reinforcing bar at the bottom of the plate 3 again by the position of unwrapping wire location; Perhaps, hook/circle 10 is set on fixed support 6, with hook/circle 10 internal mold 4 is hooked earlier, fixed support 6 and internal mold 4 are connected as a single entity as Fig. 3-shown in Figure 6.Then press the position of unwrapping wire location, with support bracket fastened opening anchor clamps 7 and reinforcing bar 3 clampings at the bottom of the plate, by fixed support 6 internal mold 4 and reinforcing bar 3 at the bottom of the plate are connected and fixed like this, internal mold can accurately be located by designing requirement, the construction efficiency height, installation cost is low, while is owing to internal mold and reinforcing bar connecting and fixing, in the process of pour concrete, isotypely can not float, the anti-floating ability of internal mold is strengthened.
Described hook/circle 10 is U-shaped, circle, ring circle, ellipse, square top and round bottom shape, square, polygon or other abnormity, sees Fig. 7-Figure 14.
Described internal mold 4 profiles are cylinder, elliptical cylinder, square top and round bottom cylindrical shell, cone, block, see Figure 15-Figure 19, and the cross section of its middle cylinder body can be circle, ellipse, square top and round bottom shape etc.; Cone and block divide solid and hollow body.
In the casting process of concrete 8, can adopt and vibrate; Also can adopt self-compacting concrete, be shaped and closely knit, need not vibrate by the high fluidity of concrete, construct easier reliably.
Its construction sequence is: lay template; Reinforcing bar 3 at the bottom of the placing plate; Unwrapping wire and lay internal mold 4; Installing fixed support 6 is connected and fixed internal mold 4 and reinforcing bar 3 at the bottom of the plate; Placing plate top reinforcing bar 5 and connecting reinforcement 9; Pour concrete 8, maintenance.

Claims (10)

1, a kind of job practices of steel bar reinforced hollow concrete roof cast-in-situs is characterized in that: step is
A, laying template;
Reinforcing bar at the bottom of b, the placing plate;
C, unwrapping wire and lay internal mold;
D, installing fixed support are connected and fixed reinforcing bar at the bottom of internal mold and the plate;
E, placing plate top reinforcing bar and connecting reinforcement;
F, pour concrete, maintenance.
2, the job practices of steel bar reinforced hollow concrete roof cast-in-situs as claimed in claim 1 is characterized in that: described fixed support and internal mold are connected as a single entity.
3, the job practices of steel bar reinforced hollow concrete roof cast-in-situs as claimed in claim 1 is characterized in that: described fixed support is connected and fixed by hook/circle and internal mold.
4, the job practices of steel bar reinforced hollow concrete roof cast-in-situs as claimed in claim 3 is characterized in that: described hook/enclose is U-shaped, circle, ellipse, square top and round bottom shape, polygon.
5, the job practices of steel bar reinforced hollow concrete roof cast-in-situs as claimed in claim 1 is characterized in that: described fixed support is provided with the opening anchor clamps of band opening.
6, the job practices of steel bar reinforced hollow concrete roof cast-in-situs as claimed in claim 1 is characterized in that: die topography is cylindrical shell, cone, block in described.
7, the job practices of steel bar reinforced hollow concrete roof cast-in-situs as claimed in claim 1 is characterized in that: in described b and the e step part reinforcing bar is applied prestressing force and form prestressed structure.
8, the job practices of steel bar reinforced hollow concrete roof cast-in-situs as claimed in claim 1 is characterized in that: described internal mold axis direction is parallel to each other, vertical with end reinforcing bar direction or intersect.
9, the job practices of steel bar reinforced hollow concrete roof cast-in-situs as claimed in claim 1 is characterized in that: concrete can vibrate in casting process in the described f step.
10, the job practices of steel bar reinforced hollow concrete roof cast-in-situs as claimed in claim 1 is characterized in that: concrete can adopt self-compacting concrete in the described f step, and promptly concrete need not vibrate in casting process.
CNB2005100311374A 2005-01-12 2005-01-12 Construction for steel bar reinforced hollow concrete roof cast-in-situs Expired - Fee Related CN1295408C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2005100311374A CN1295408C (en) 2005-01-12 2005-01-12 Construction for steel bar reinforced hollow concrete roof cast-in-situs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2005100311374A CN1295408C (en) 2005-01-12 2005-01-12 Construction for steel bar reinforced hollow concrete roof cast-in-situs

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CN1644835A true CN1644835A (en) 2005-07-27
CN1295408C CN1295408C (en) 2007-01-17

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101818574A (en) * 2010-03-23 2010-09-01 南通宏华建筑安装有限公司 Construction method for self-stable high-strength thin-wall pipe internal mold cast-in-place hollow slab
CN101824865A (en) * 2010-04-21 2010-09-08 中南大学 Cast-in-place reinforced concrete hollow slab
CN102182313A (en) * 2011-03-30 2011-09-14 中联世纪建设集团有限公司 Anti-floating construction method of cast-in-situ concrete girderless hollow floor slab
CN102765132A (en) * 2012-07-06 2012-11-07 中元建设集团股份有限公司 Hollow slab beam air inflation capsule anti-floating rib
CN103266704A (en) * 2013-05-31 2013-08-28 佛山市班高得节能建工科技有限公司 Hollow floor slab and construction method thereof
CN104563392A (en) * 2014-10-31 2015-04-29 华南理工大学 Recycled hybrid beam with built-in box-shaped section steel and construction technology thereof
CN105604317A (en) * 2016-02-24 2016-05-25 广东省建筑设计研究院 Thin-wall square box hollow floor mandrel and anti-floating method thereof
CN105625620A (en) * 2016-03-11 2016-06-01 中国五冶集团有限公司 Clamping device for formwork square box arranged in hollow slab
CN109577647A (en) * 2018-12-11 2019-04-05 山东建筑大学 One kind is from anti-floating plastics diaphragm capsule and construction method
CN111622408A (en) * 2020-04-21 2020-09-04 上海二十冶建设有限公司 Hollow floor system using cylindrical mold core and matched filling device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1114738C (en) * 1999-11-22 2003-07-16 邱则有 In-situ cast hollow reinforced concrete slab pre-provided with hollow hard thin-wall members and its construction method

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101818574A (en) * 2010-03-23 2010-09-01 南通宏华建筑安装有限公司 Construction method for self-stable high-strength thin-wall pipe internal mold cast-in-place hollow slab
CN101824865A (en) * 2010-04-21 2010-09-08 中南大学 Cast-in-place reinforced concrete hollow slab
CN102182313A (en) * 2011-03-30 2011-09-14 中联世纪建设集团有限公司 Anti-floating construction method of cast-in-situ concrete girderless hollow floor slab
CN102765132A (en) * 2012-07-06 2012-11-07 中元建设集团股份有限公司 Hollow slab beam air inflation capsule anti-floating rib
CN103266704A (en) * 2013-05-31 2013-08-28 佛山市班高得节能建工科技有限公司 Hollow floor slab and construction method thereof
CN103266704B (en) * 2013-05-31 2015-05-27 佛山市班高得节能建工科技有限公司 Hollow floor slab and construction method thereof
CN104563392A (en) * 2014-10-31 2015-04-29 华南理工大学 Recycled hybrid beam with built-in box-shaped section steel and construction technology thereof
CN105604317A (en) * 2016-02-24 2016-05-25 广东省建筑设计研究院 Thin-wall square box hollow floor mandrel and anti-floating method thereof
CN105604317B (en) * 2016-02-24 2018-02-06 广东省建筑设计研究院 A kind of thin-walled square chest hollow floor core and its anti-float method
CN105625620A (en) * 2016-03-11 2016-06-01 中国五冶集团有限公司 Clamping device for formwork square box arranged in hollow slab
CN109577647A (en) * 2018-12-11 2019-04-05 山东建筑大学 One kind is from anti-floating plastics diaphragm capsule and construction method
CN111622408A (en) * 2020-04-21 2020-09-04 上海二十冶建设有限公司 Hollow floor system using cylindrical mold core and matched filling device
CN111622408B (en) * 2020-04-21 2021-11-16 上海二十冶建设有限公司 Hollow floor system using cylindrical mold core and matched filling device

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Termination date: 20160112