CN105442736A - Anti-floating construction method for cast-in-place concrete hollow floor sectional type combined device - Google Patents
Anti-floating construction method for cast-in-place concrete hollow floor sectional type combined device Download PDFInfo
- Publication number
- CN105442736A CN105442736A CN201510877275.8A CN201510877275A CN105442736A CN 105442736 A CN105442736 A CN 105442736A CN 201510877275 A CN201510877275 A CN 201510877275A CN 105442736 A CN105442736 A CN 105442736A
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- Prior art keywords
- floating
- template
- internal mold
- filled internal
- flower basket
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Classifications
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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
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses an anti-floating construction method for a cast-in-place concrete hollow floor sectional type combined device. The method comprises the following steps of A preparation work before laying of a filling inner mold in a plate, B laying of the filling inner mold, C laying of reinforcing steel bars on a plate face, D anti-floating treatment of the filling inner mold, E cleaning of a construction operation face and F removal of a formwork. An anti-floating pull rod is adopted for replacing an iron wire in the prior art, it can be guaranteed that the bottom of a concrete floor slab is smooth, and no residues are left to influence later decoration. In the concrete unloading process, the formwork is flatly laid on an unloading reinforcement mesh for buffering, and concrete is poured in the single direction of the longitudinal axis of the filling inner mold in a laying mode through manpower.
Description
Technical field
The present invention relates to a kind of cast-in-place concrete hollow building roof segmented combination unit anti-floating construction method, belong to technical field of building construction.
Background technology
Cast-in-place concrete hollow building roof construction technology is the domestic new technology grown up in recent years, have compared with solid concrete superstructure from heavy and light, the advantage such as span is large, rigidity good, sound-insulating and heat-insulating is good, cost is lower, be particularly useful for the construction work having large bay, large span to require.Due to cast-in-situ concrete from heavy and light and also quantity many, produce buoyancy effect when concreting, solve bad, the lighter causes local floor absolute altitude superelevation, reduces finishing way thickness, and severe one can cause large area to float to occur quality accident.
The anti-floating of existing filled internal mold is fixed by the iron wire of diameter 3-5mm.During fixing anti-floating control point, first iron wire one end is down passed in template from hole, after tying with the support system of template, iron wire termination is up worn from hole, when placing on filled internal mold, the good plate of colligation after iron and distribution bar, two of iron wire terminations are tightened at anti-floating control point place, prevents filled internal mold from floating.This kind of method template is removed rear concrete floor bottom surface and be there is a large amount of iron wires, affects the decorations of floor later stage.
Summary of the invention
In conjunction with the present Research of current cast-in-place concrete hollow building roof construction, incorporation engineering actual features is optimized hollow building cover measure of anti float, and technical problem to be solved by this invention is:
1. cast-in-place concrete hollow building roof is in work progress, filled internal mold from heavy and light and also quantity many, its location with anti-floating be the Focal point and difficult point of constructing, can the whether proper relation of measure directly arrive cassette ceiling structural system and realize.
2. the anti-floating of existing filled internal mold is fixed by the iron wire of diameter 3-5mm, and this kind of method template is removed rear concrete floor bottom surface and be there is a large amount of iron wires, affects the decorations of floor later stage.
To achieve these goals, the present invention adopts following technical proposals:
The present invention relates to cast-in-place concrete hollow building roof flower basket bolt anti-floating construction method, it is characterized in that comprising the steps:
Preparation before filled internal mold lay in A plate
(1) support plate bed die and side form
Install floor bottom mould and beam side by drawing.
(2) setting-out in template
According to working layout drawing, template accurately marks the accurate location of each filled internal mold and solid rib.
(3) colligation reinforcement, installs pipeline
According to design drawing requirement, colligation reinforcement, installs pipeline.
B filled internal mold lay
Filled internal mold assembled unit is accurately arranged on design attitude
The reinforcing bar in C lay plate face
The top longitudinal reinforcement in plate face, first lay filled internal mold place, repaves and puts transversely distributed steelbar;
D filled internal mold anti-floating dispose
(1) first reasonable Arrangement anti-floating control point, control point is located at rib place, and by rectangular arrangement, every rib is all established or is crisscross arranged every a rib, is no less than two points within the scope of every 1.0 square metres;
(2) anti-floating of filling inner membrance adopts anti-floating pull bar, and described anti-floating pull bar lower end is welded with stator, and upper end is 180 degree of stay hooks, and mid portion installs flower basket bolt, is welded with the nut supporting with flower basket bolt screw mandrel in template upper surface position simultaneously; Crotch is the distance of upper reinforced mesh upper surface to template upper surface to the length of nut;
(3) punch on the bed die at girt strip position for installing anti-floating control point;
E operation side is cleared up
In order to ensure the quality of products, before concreting, the filled internal mold utilizing artificial or dust collection equipment installation process to be produced and the template chip produced of holing is cleaned out;
F stripping
Be dismountable anti-floating pull bar after concrete roof tentatively goes up intensity, first the fastener at stator place removed, then, flower basket bolt following bottom template is removed;
First tear the template of not supporting part open, after tear the template of supporting part open; , first tear lateral support open from top to bottom, after tear the principle of vertical supporting open.
First from the span centre of beam slab, lower column bracket, then lower by root to two ends, then prize template gently with drill rod, pull down first piece, then block-by-block is removed.
In a preferred embodiment of the present invention, during fixing anti-floating control point, hole in position, anti-floating control point with Electric portable drill, by flower basket bolt through template, stay hook is arranged on flower basket bolt, stay hook hooks hollow building cover upper net plate reinforcing bar, and lower end stator utilizes fastener to be fixed on the upper level bar of supporting frame.After good for upper and lower for filled internal mold cushion block pad, fastening flower basket bolt is fixed.
In a preferred embodiment of the present invention, anti-floating pull bar is by prefabricated processing outside the venue, and the mode of installing in field, effectively can save the duration.
In a preferred embodiment of the present invention, concrete vibrating selects small-sized poker vibrator, and is equipped with that small-power vibration board is collaborative to vibrate, to ensure that filled internal mold is full by concrete filling, without accumulating air bag, bubble.
Adopt method of the present invention, at least having the following advantages one or more or all:
1. have developed the anti-floating pull bar being applicable to cast-in-situ hollow building roof anti-floating filled internal mold anti-floating, by connecting upper reinforced mesh and bracing frame, preventing filled internal mold from occurring floating in concreting process.
2. with traditional iron wire Stationary liquid ratio, top crotch dimensional standard is unified, decreases the upper net plate site error that when adopting iron wire fastening, artificial origin causes, effectively ensure that construction quality.
3. anti-floating pull bar adopts segmented to connect, and the outer bar removed can recycle, and saves a large amount of artificial and goods and materials, avoids pollution without the need to cutting.
4. floorslab concrete is dismountable anti-floating pull bar after intensity, during dismounting, screw mandrel is backed out, remove for roof plate template and provide conveniently, decrease the breakage of template, improve template turnover utilization rate.
Accompanying drawing explanation
Schematic diagram is arranged at Fig. 1 anti-floating control point
Fig. 2 segmented combination unit organigram
Fig. 3 filled internal mold anti-floating organigram
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, technology contents of the present invention is described in detail.
Embodiment 1:
1. preparation before filled internal mold lay in plate
(1) support plate bed die and side form
Install floor bottom mould and beam side by drawing.
(2) setting-out in template
According to working layout drawing, template accurately marks the accurate location of each filled internal mold and solid rib.
(3) colligation reinforcement, installs pipeline
According to design drawing requirement, colligation reinforcement, installs pipeline.
2. filled internal mold lay
Filled internal mold assembled unit is accurately arranged on design attitude, if conflict with pipeline, needs fluting on filled internal mold and shutoff.Filled internal mold construction requires the laying of pipeline: have the local pipeline of filled internal mold should to try one's best smooth vertical and horizontal lay.Be laterally vertical filled internal mold, try one's best away two ends solid area or two filled internal mold joining places, as cannot implement can on filled internal mold differential trench open, stay a passage to pipeline, then repairing reinforcement carried out to filled internal mold fluting place.
3. the reinforcing bar in lay plate face
The top longitudinal reinforcement in plate face, first lay filled internal mold place, repaves and puts transversely distributed steelbar.The finished product protection to filled internal mold must be noted during construction, avoid weight being pressed in above the two.
4. filled internal mold anti-floating dispose
(1) first reasonable Arrangement anti-floating control point, control point is located at rib place, and by rectangular arrangement, every rib is all established or is crisscross arranged every a rib, ensures to be no less than two points within the scope of every 1.0 square metres, as shown in Figure 1.
(2) anti-floating of filling inner membrance adopts the segmented combination unit certainly ground, its lower end is welded with stator, upper end is 180 degree of stay hooks, and mid portion installs flower basket bolt, will be welded with the nut supporting with flower basket bolt screw mandrel to split in template upper surface position simultaneously.Crotch is the distance of upper reinforced mesh upper surface to template upper surface to the length of nut, as shown in Figure 2.
During fixing anti-floating control point, with Electric portable drill in the boring of position, anti-floating control point, by flower basket bolt through template, stay hook is arranged on flower basket bolt, stay hook hooks hollow building cover upper net plate reinforcing bar, and lower end stator utilizes fastener to be fixed on the upper level bar of supporting frame.After good for upper and lower for filled internal mold cushion block pad, fixed by fastening flower basket bolt, utilize anti-floating pull bar to solve the floating of filled internal mold.As shown in Figure 3.
(3) in order to install anti-floating control point, need punch on the bed die at girt strip position.Based on handled easily with in time clear up the wood chip that punches and consider, punching work just should put sample well by plain bars in template, and girt strip position has been determined to carry out in time afterwards.
5. operation side cleaning
In order to ensure the quality of products, before concreting, the filled internal mold utilizing artificial or dust collection equipment installation process to be produced and the template chip produced of holing is cleaned out.
6. concretely build and vibrate
(1), after lay, concealment acceptance should be carried out by unit in charge of construction, Construction unit, supervisor.
(2) the overall straight degree of the specification of filled internal mold, quantity, installation site, location measure, Anti-floating Technology and filled internal mold is conscientiously checked, fill in filled internal mold record of acceptance table.Check that confirmation can concreting after qualified.
(3) special messenger should be had during concreting to be responsible for guard.Trampling should be avoided when vibrating to collide filled internal mold.During concreting, build at twice as far as possible, should conscientiously vibrate, ensure concrete closely knit; Especially bottom filled internal mold, forbid leakage to be shaken, concrete must not have honeycomb or hole.
6. form removable
Be dismountable anti-floating pull bar after concrete roof tentatively goes up intensity, first the fastener at stator place removed, then, flower basket bolt following bottom template is removed.
Should follow during template first to prop up and tear open afterwards, first tear open for rear; First tear the template of not supporting part open, after tear the template of supporting part open; , first tear lateral support open from top to bottom, after tear the principle of vertical supporting open.
First from the span centre of beam slab, lower column bracket, then lower by root to two ends, then prize template gently with drill rod, pull down first piece, then block-by-block is removed.Not handy steel rod or iron hammer are fiercelyed attack random sled, forbid the template free falling of pulling down in ground (building) face.
The dismounting of template is to the regulation that structural concrete is surperficial, requirement of strength should meet 4.3 form removables in " concrete structure engineering construction quality accident specification " (GB50204-20022010 version).
(2) know-why
A kind of cast-in-place concrete hollow building roof of this technical research fills the segmented combination unit of inner membrance, its lower end is welded with stator, upper end is 180 ° of stay hooks, and mid portion installs flower basket bolt, will be welded with the nut supporting with flower basket bolt screw mandrel to split in template upper surface position simultaneously.Crotch is the distance of upper reinforced mesh upper surface to template upper surface to the length of nut, as shown in Figure 2.
During fixing anti-floating control point, hole in position, anti-floating control point with Electric portable drill, by flower basket bolt through template, stay hook is arranged on flower basket bolt, stay hook hooks hollow building cover upper net plate reinforcing bar, lower end stator fastener is fixed on the upper level bar of supporting frame, fastening flower basket bolt, prevents filled internal mold from floating in concreting process.
The above is the preferred embodiments of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.For the technician in general field, to any apparent change that it does under the prerequisite not deviating from connotation of the present invention, all by formation to infringement of patent right of the present invention, corresponding legal liabilities will be born.
Claims (4)
1. cast-in-place concrete hollow building roof segmented combination unit anti-floating construction method, is characterized in that comprising the steps:
Preparation before filled internal mold lay in A plate
(1) support plate bed die and side form
Install floor bottom mould and beam side by drawing;
(2) setting-out in template
According to working layout drawing, template accurately marks the accurate location of each filled internal mold and solid rib;
(3) colligation reinforcement, installs pipeline
According to design drawing requirement, colligation reinforcement, installs pipeline;
B filled internal mold lay
Filled internal mold assembled unit is accurately arranged on design attitude;
The reinforcing bar in C lay plate face
The top longitudinal reinforcement in plate face, first lay filled internal mold place, repaves and puts transversely distributed steelbar;
D filled internal mold anti-floating dispose
(1) first reasonable Arrangement anti-floating control point, control point is located at rib place, and by rectangular arrangement, every rib is all established or is crisscross arranged every a rib, is no less than two points within the scope of every 1.0 square metres;
(2) anti-floating of filling inner membrance adopts anti-floating pull bar, and described anti-floating pull bar lower end is welded with stator, and upper end is 180 degree of stay hooks, and mid portion installs flower basket bolt, is welded with the nut supporting with flower basket bolt screw mandrel in template upper surface position simultaneously; Crotch is the distance of upper reinforced mesh upper surface to template upper surface to the length of nut;
(3) punch on the bed die at girt strip position for installing anti-floating control point;
E operation side is cleared up
In order to ensure the quality of products, before concreting, the filled internal mold utilizing artificial or dust collection equipment installation process to be produced and the template chip produced of holing is cleaned out;
F stripping
Be dismountable anti-floating pull bar after concrete roof tentatively goes up intensity, first the fastener at stator place removed, then, flower basket bolt following bottom template is removed;
First tear the template of not supporting part open, after tear the template of supporting part open; , first tear lateral support open from top to bottom, after tear the principle of vertical supporting open;
First from the span centre of beam slab, lower column bracket, then lower by root to two ends, then prize template gently with drill rod, pull down first piece, then block-by-block is removed.
2. method according to claim 1, during fixing anti-floating control point, hole in position, anti-floating control point with Electric portable drill, by flower basket bolt through template, stay hook is arranged on flower basket bolt, stay hook hooks hollow building cover upper net plate reinforcing bar, and lower end stator utilizes fastener to be fixed on the upper level bar of supporting frame; After good for upper and lower for filled internal mold cushion block pad, fastening flower basket bolt is fixed.
3. method according to claim 1, segmented combination unit passes through prefabricated processing outside the venue, the mode of installing in field.
4. method according to claim 1, concrete vibrating selects small-sized poker vibrator, and is equipped with that small-power vibration board is collaborative to vibrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510877275.8A CN105442736A (en) | 2015-12-03 | 2015-12-03 | Anti-floating construction method for cast-in-place concrete hollow floor sectional type combined device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510877275.8A CN105442736A (en) | 2015-12-03 | 2015-12-03 | Anti-floating construction method for cast-in-place concrete hollow floor sectional type combined device |
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| CN105442736A true CN105442736A (en) | 2016-03-30 |
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| CN201510877275.8A Pending CN105442736A (en) | 2015-12-03 | 2015-12-03 | Anti-floating construction method for cast-in-place concrete hollow floor sectional type combined device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908883A (en) * | 2016-06-12 | 2016-08-31 | 中国十七冶集团有限公司 | Construction method for preventing upward floating of composite floor system lightweight core formwork |
| CN108839216A (en) * | 2018-06-25 | 2018-11-20 | 上海建工材料工程有限公司 | A kind of prefabricated components inner core template is anti-to float device and its installation method |
| CN110080454A (en) * | 2019-05-31 | 2019-08-02 | 中联世纪建设集团有限公司 | LPM light filling body Construction of Cast-in-situ Concrete Hollow |
| CN115012313A (en) * | 2022-06-09 | 2022-09-06 | 阜阳市永恒建筑工程有限公司 | Combined template system for bridge construction |
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| JP2005232866A (en) * | 2004-02-20 | 2005-09-02 | Sekisui Plastics Co Ltd | Cast-in-place hollow core concrete slab structure, cast-in-place hollow core concrete slab and its construction method |
| CN101487320A (en) * | 2009-02-06 | 2009-07-22 | 北京首钢建设集团有限公司 | Thin-wall hollow pipe anti-floating construction method for cast-in-situ concrete hollow floor slab |
| CN102296735A (en) * | 2011-05-18 | 2011-12-28 | 济南四建（集团）有限责任公司 | Anti-floating structure and method for cast-in-situ concrete GBF (glass basalt fiber) hollow floor slab |
| CN203049862U (en) * | 2013-01-08 | 2013-07-10 | 上海森信建设工程有限公司 | Hollow floor system solid inner mold fixing device |
| KR20150048993A (en) * | 2013-10-29 | 2015-05-08 | 이외숙 | Device for preventing buoyance in hollow concrete slab |
| CN204590365U (en) * | 2015-03-17 | 2015-08-26 | 江苏瑞永建设工程技术有限公司 | A kind of anti-floating combined structure for building sound-absorbing hollow floor cover plate |
| CN204645355U (en) * | 2015-05-12 | 2015-09-16 | 中建城市建设发展有限公司 | A kind of anti-hollow section floating detachable apparatus |
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2015
- 2015-12-03 CN CN201510877275.8A patent/CN105442736A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005232866A (en) * | 2004-02-20 | 2005-09-02 | Sekisui Plastics Co Ltd | Cast-in-place hollow core concrete slab structure, cast-in-place hollow core concrete slab and its construction method |
| CN101487320A (en) * | 2009-02-06 | 2009-07-22 | 北京首钢建设集团有限公司 | Thin-wall hollow pipe anti-floating construction method for cast-in-situ concrete hollow floor slab |
| CN102296735A (en) * | 2011-05-18 | 2011-12-28 | 济南四建（集团）有限责任公司 | Anti-floating structure and method for cast-in-situ concrete GBF (glass basalt fiber) hollow floor slab |
| CN203049862U (en) * | 2013-01-08 | 2013-07-10 | 上海森信建设工程有限公司 | Hollow floor system solid inner mold fixing device |
| KR20150048993A (en) * | 2013-10-29 | 2015-05-08 | 이외숙 | Device for preventing buoyance in hollow concrete slab |
| CN204590365U (en) * | 2015-03-17 | 2015-08-26 | 江苏瑞永建设工程技术有限公司 | A kind of anti-floating combined structure for building sound-absorbing hollow floor cover plate |
| CN204645355U (en) * | 2015-05-12 | 2015-09-16 | 中建城市建设发展有限公司 | A kind of anti-hollow section floating detachable apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908883A (en) * | 2016-06-12 | 2016-08-31 | 中国十七冶集团有限公司 | Construction method for preventing upward floating of composite floor system lightweight core formwork |
| CN108839216A (en) * | 2018-06-25 | 2018-11-20 | 上海建工材料工程有限公司 | A kind of prefabricated components inner core template is anti-to float device and its installation method |
| CN110080454A (en) * | 2019-05-31 | 2019-08-02 | 中联世纪建设集团有限公司 | LPM light filling body Construction of Cast-in-situ Concrete Hollow |
| CN115012313A (en) * | 2022-06-09 | 2022-09-06 | 阜阳市永恒建筑工程有限公司 | Combined template system for bridge construction |
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Application publication date: 20160330 |
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