CN105421780A - Construction method of prefabricated concrete structure - Google Patents
Construction method of prefabricated concrete structure Download PDFInfo
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- CN105421780A CN105421780A CN201510702353.0A CN201510702353A CN105421780A CN 105421780 A CN105421780 A CN 105421780A CN 201510702353 A CN201510702353 A CN 201510702353A CN 105421780 A CN105421780 A CN 105421780A
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- Prior art keywords
- superposed beam
- profiled sheet
- concrete structure
- construction method
- prefabricated concrete
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention provides a construction method of a prefabricated concrete structure, and belongs to the technical field of fixed buildings. The technical problem that an existing construction method of a concrete structure cannot meet the requirements of high efficiency and strength is solved. The construction method of the prefabricated concrete structure comprises the steps that a, a superposed beam and a profiled steel sheet are manufactured; b, the superposed beam is installed; c, the profiled steel sheet is installed; d, steel bar binding is carried out; e, concrete construction is carried out. The construction method has the advantages that the whole strength of the concrete structure obtained after construction is finished is high, the construction time in a construction site can be greatly shortened, and the construction efficiency is improved.
Description
Technical field
The invention belongs to technical field of fixed buildings, relate to a kind of construction method of prefabricated concrete structure.
Background technology
In modern architecture, cast-in-place integral formula is concrete structure form the earliest, first building of template is carried out before concreting, at laying pipeline and reinforcing bar, carry out concrete building again after completing, this form of construction work also exists long construction period, produce and realize that industrialization, circulation material are many, the high deficiency of construction cost compared with difficult.
Along with the prefabricated concrete structure that the development of building construction technology is arisen at the historic moment, namely crossbeam and floor have all first been prepared in factory, only building of pillar is carried out in building site, by the mode of lifting, crossbeam and floor are lifted on pillar again, although which efficiency is higher, but its globality is more weak, poor seismic behavior, to problems such as lifting requirements are high.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose a kind of construction method of prefabricated concrete structure, the technical problem that the present invention solves can improve efficiency of construction when ensureing bulk strength.
Object of the present invention realizes by following technical proposal:
A construction method for prefabricated concrete structure, is characterized in that, comprises the following steps:
A, prepare superposed beam and profiled sheet: to build in advance on mould according to required size in factory and obtain superposed beam, obtain profiled sheet according to required size by Sheet Metal Forming Technology in factory;
B, superposed beam is installed: superposed beam is transported to building site, by crane by superposed beam lifting to cast-in-place post corrects the position of superposed beam after lifting, to be corrected complete after by junction steel plate, the embedded iron parts on cast-in-place post and superposed beam is welded and fixed;
C, installation profiled sheet: profiled sheet is transported to building site, made the slit opening of adjacent profiled sheet align by crane by profiled sheet lifting to adjacent two superposed beams, be connected by adjacent profiled sheet by binding clasp;
D, assembling reinforcement: between superposed beam and on profiled sheet, lay reinforcing bar;
E, concrete construction: cleaning superposed beam and profiled sheet also water and keep moistening, then concreting adopt vibrator vibration compacting, carry out maintenance after having built concrete to concrete.
After having built concrete, profiled sheet and the concrete of building thereon form compoboard; By first by superposed beam and profiled sheet prefabricated inside factory, material cost and cost of labor can be saved, the lower and environmental protection and energy saving of cost; Prefabricated superposed beam and profiled sheet are accurately installed successively, greatly can save the engineering time at building-site, thus improve efficiency of construction; After completing concreting, superposed beam and profiled sheet form monolithic concrete structure, and the concrete structure bulk strength obtained by this construction method is high, industrialization degree is high and overall economic efficiency is remarkable; Self-contained in factory, the superposed beam of therefore building is reliable and stable, thus can ensure the bulk strength after having built.
In the construction method of above-mentioned prefabricated concrete structure, between step a and step b, carry out surveying setting-out, the cement paste on superposed beam and cast-in-place post, the loosening foreign material such as concrete and iron rust are cleaned out; Measure cast-in-place post absolute altitude suitable for reading with level gauge, the carrying out adjustment that adjacent cast-in-place post absolute altitude suitable for reading does not wait is corrected; With total powerstation at cast-in-place post mark center line suitable for reading; Center line is marked by the mode of snap the line at the two ends of superposed beam to be lifted.Above-mentioned operation carries out adequate preparation for installing superposed beam, makes to locate superposed beam efficiently, accurately when installing superposed beam, thus improves efficiency of construction.
In the construction method of above-mentioned prefabricated concrete structure, in step b, when correcting superposed beam position, slightly stirring superposed beam when the site error of superposed beam is less by crowbar and making it to aim at; When the site error of superposed beam is larger, again lifts superposed beam by crane and correct.Effectively superposed beam can be in place by the method, also can avoid damaging superposed beam, ensure the bulk strength of concrete structure.
In the construction method of above-mentioned prefabricated concrete structure, surveying setting-out is carried out between step b and step c, first the cement paste on superposed beam end face, the loosening foreign material such as concrete and iron rust are cleaned out, on superposed beam, marked the position line of profiled sheet lay again by the mode of snap the line, when lifting, profiled sheet is put according to the position line.This operation carries out adequate preparation for installing profiled sheet, makes to locate profiled sheet efficiently, accurately when installing profiled sheet, thus improves efficiency of construction.
In the construction method of above-mentioned prefabricated concrete structure, in step c, the lap length of end on superposed beam of profiled sheet is at least greater than 50mm.Ensure the support strength of profiled sheet, thus ensure the bulk strength of concrete structure.
In the construction method of above-mentioned prefabricated concrete structure, in step c, adopt soft hoist cable or wire rope lifting profiled sheet during lifting, and add rubber in the corner of profiled sheet.This step plays protection profiled sheet, avoids profiled sheet to occur deformation, thus ensures the bulk strength of concrete structure.
In the construction method of above-mentioned prefabricated concrete structure, after completing steps c, adopt the port shutoff that cement paste will be formed between the slit opening of profiled sheet and superposed beam.This step can be avoided occurring spillage when concreting.
In the construction method of above-mentioned prefabricated concrete structure, pipe laying is carried out between step c and steps d, according to design drawing in the precalculated position perforate of profiled sheet and cutting, then at the tapping of profiled sheet and cut place laying wire pipeline or water pipe or air pipeline.Perforate and cutting adopt Plasma cutting machine, avoid damaging profiled sheet overlay coating; Raceway for wiring, water pipe and air pipeline are embedded in profiled sheet, avoid pipeline to expose.
Compared with prior art, it is high that the construction method of this prefabricated concrete structure has the concrete structure bulk strength obtained after having constructed, and greatly can save the engineering time at building-site, improves the advantage of efficiency of construction.
Accompanying drawing explanation
Fig. 1 is the construction sequence flow chart in detailed description of the invention.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figure 1, the construction method of prefabricated concrete structure comprises the following steps the present embodiment: a, prepare superposed beam and profiled sheet; B, installation superposed beam; C, installation profiled sheet; D, assembling reinforcement and e, concrete construction, specifically:
In step a, to build in advance on mould according to required size in factory and obtain superposed beam, superposed beam is divided into girder and secondary beam.Profiled sheet is obtained according to required size by Sheet Metal Forming Technology in factory.
Before carrying out step b, carry out surveying setting-out, the cement paste on superposed beam and cast-in-place post, the loosening foreign material such as concrete and iron rust are cleaned out; Measure cast-in-place post absolute altitude suitable for reading with level gauge, the carrying out adjustment that adjacent cast-in-place post absolute altitude suitable for reading does not wait is corrected; With total powerstation at cast-in-place post mark center line suitable for reading, perform mark; Center line is marked by the mode of snap the line at the two ends of superposed beam to be lifted.
In step b, superposed beam is transported to building site, by crane by superposed beam lifting to cast-in-place post, first by main cable and girder to cast-in-place post, is more accurately lifted by secondary beam on girder, girder is longitudinally arrange, secondary beam is that horizontal line is arranged; After lifting, the position of superposed beam is corrected, when correcting superposed beam position, slightly stirring superposed beam when the site error of superposed beam is less by crowbar and making it to aim at; When the site error of superposed beam is larger, again lifts superposed beam by crane and correct.To be corrected complete after by junction steel plate, the embedded iron parts on cast-in-place post and superposed beam is welded and fixed.
Surveying setting-out was carried out before carrying out step c, first the cement paste on the end face of superposed beam, the loosening foreign material such as concrete and iron rust are cleaned out, on superposed beam, marked the position line of profiled sheet lay again by the mode of snap the line, when lifting, profiled sheet is put according to the position line.
In step c, profiled sheet is transported to building site, by in profiled sheet lifting to adjacent two superposed beams, the slit opening of adjacent profiled sheet is alignd by crane, soft hoist cable or wire rope lifting profiled sheet is adopted during lifting, and add rubber in the corner of profiled sheet, the lap length of end on superposed beam of profiled sheet is at least greater than 50mm, and as preferably, the lap length of end on superposed beam of profiled sheet can be 55mm, 60mm or 70mm etc.; By binding clasp, adjacent profiled sheet is connected, adopts the port shutoff that cement paste will be formed between the slit opening of profiled sheet and superposed beam simultaneously.
In the laggard row pipe laying of completing steps c, adopt Plasma cutting machine in the precalculated position perforate of profiled sheet and cutting according to design drawing, then at the tapping of profiled sheet and cut place laying wire pipeline or water pipe or air pipeline.
In steps d, between superposed beam and on profiled sheet, lay reinforcing bar; The reinforcing bar laid is divided into two-layer up and down, and lower floor's reinforcing bar is positioned at the groove of profiled sheet, and top reinforcement is positioned at the top of profiled sheet, the even colligation of top reinforcement spacing, and the crotch of top reinforcement vertically stretches in the groove of profiled sheet down.
In step e, cleaning superposed beam and profiled sheet also water and keep moistening, then concreting adopt vibrator vibration compacting, carry out maintenance after having built concrete to concrete.
After having built concrete, profiled sheet and the concrete of building thereon form compoboard; By first by superposed beam and profiled sheet prefabricated inside factory, material cost and cost of labor can be saved, the lower and environmental protection and energy saving of cost; Prefabricated superposed beam and profiled sheet are accurately installed successively, greatly can save the engineering time at building-site, thus improve efficiency of construction; After completing concreting, superposed beam and profiled sheet form monolithic concrete structure, and the concrete structure bulk strength obtained by this construction method is high, industrialization degree is high and overall economic efficiency is remarkable; Self-contained in factory, the superposed beam of therefore building is reliable and stable, thus can ensure the bulk strength after having built.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (8)
1. a construction method for prefabricated concrete structure, is characterized in that, comprises the following steps:
A, prepare superposed beam and profiled sheet: to build in advance on mould according to required size in factory and obtain superposed beam, obtain profiled sheet according to required size by Sheet Metal Forming Technology in factory;
B, superposed beam is installed: superposed beam is transported to building site, by crane by superposed beam lifting to cast-in-place post corrects the position of superposed beam after lifting, to be corrected complete after by junction steel plate, the embedded iron parts on cast-in-place post and superposed beam is welded and fixed;
C, installation profiled sheet: profiled sheet is transported to building site, made the slit opening of adjacent profiled sheet align by crane by profiled sheet lifting to adjacent two superposed beams, be connected by adjacent profiled sheet by binding clasp;
D, assembling reinforcement: between superposed beam and on profiled sheet, lay reinforcing bar;
E, concrete construction: cleaning superposed beam and profiled sheet also water and keep moistening, then concreting adopt vibrator vibration compacting, carry out maintenance after having built concrete to concrete.
2. the construction method of prefabricated concrete structure according to claim 1, is characterized in that, carries out surveying setting-out between step a and step b, the cement paste on superposed beam and cast-in-place post, the loosening foreign material such as concrete and iron rust is cleaned out; Measure cast-in-place post absolute altitude suitable for reading with level gauge, the carrying out adjustment that adjacent cast-in-place post absolute altitude suitable for reading does not wait is corrected; With total powerstation at cast-in-place post mark center line suitable for reading; Center line is marked by the mode of snap the line at the two ends of superposed beam to be lifted.
3. the construction method of prefabricated concrete structure according to claim 1 and 2, is characterized in that, in step b, when correcting superposed beam position, slightly stirring superposed beam make it to aim at when the site error of superposed beam is less by crowbar; When the site error of superposed beam is larger, again lifts superposed beam by crane and correct.
4. the construction method of prefabricated concrete structure according to claim 1, it is characterized in that, surveying setting-out is carried out between step b and step c, first the cement paste on superposed beam end face, the loosening foreign material such as concrete and iron rust are cleaned out, on superposed beam, marked the position line of profiled sheet lay again by the mode of snap the line, when lifting, profiled sheet is put according to the position line.
5. the construction method of the prefabricated concrete structure according to claim 1 or 4, is characterized in that, in step c, the lap length of end on superposed beam of profiled sheet is at least greater than 50mm.
6. the construction method of the prefabricated concrete structure according to claim 1 or 4, is characterized in that, in step c, adopts soft hoist cable or wire rope lifting profiled sheet, and add rubber in the corner of profiled sheet during lifting.
7. the construction method of prefabricated concrete structure according to claim 1, is characterized in that, after completing steps c, adopts the port shutoff that cement paste will be formed between the slit opening of profiled sheet and superposed beam.
8. the construction method of prefabricated concrete structure according to claim 1, it is characterized in that, pipe laying is carried out between step c and steps d, according to design drawing in the precalculated position perforate of profiled sheet and cutting, then at the tapping of profiled sheet and cut place laying wire pipeline or water pipe or air pipeline.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510702353.0A CN105421780B (en) | 2015-10-26 | 2015-10-26 | A kind of construction method of prefabricated concrete structure |
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| CN201510702353.0A CN105421780B (en) | 2015-10-26 | 2015-10-26 | A kind of construction method of prefabricated concrete structure |
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| Publication Number | Publication Date |
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| CN105421780A true CN105421780A (en) | 2016-03-23 |
| CN105421780B CN105421780B (en) | 2018-08-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193623A (en) * | 2016-07-29 | 2016-12-07 | 刘祥锦 | A kind of prefabricated concrete structure construction method |
| TWI687042B (en) * | 2019-06-11 | 2020-03-01 | 李青枬 | Supporting construction method of solar module |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2189625Y (en) * | 1993-12-15 | 1995-02-15 | 曹凤兰 | Preformed frame component of hollow ferro-concrete |
| CN2390933Y (en) * | 1999-06-04 | 2000-08-09 | 同济大学 | Square steel pipe concrete beam and column jointing gusset |
| CN1263971A (en) * | 2000-02-24 | 2000-08-23 | 施民 | Technology for building house with centrifugal structural concrete members and frames without brick walls |
| CN101113604A (en) * | 2007-06-22 | 2008-01-30 | 东南大学 | Full-prefabricated assembled concrete frame construction |
| KR20120074130A (en) * | 2010-12-27 | 2012-07-05 | 재단법인 포항산업과학연구원 | Compisite column structure for steel and concrete |
-
2015
- 2015-10-26 CN CN201510702353.0A patent/CN105421780B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2189625Y (en) * | 1993-12-15 | 1995-02-15 | 曹凤兰 | Preformed frame component of hollow ferro-concrete |
| CN2390933Y (en) * | 1999-06-04 | 2000-08-09 | 同济大学 | Square steel pipe concrete beam and column jointing gusset |
| CN1263971A (en) * | 2000-02-24 | 2000-08-23 | 施民 | Technology for building house with centrifugal structural concrete members and frames without brick walls |
| CN101113604A (en) * | 2007-06-22 | 2008-01-30 | 东南大学 | Full-prefabricated assembled concrete frame construction |
| KR20120074130A (en) * | 2010-12-27 | 2012-07-05 | 재단법인 포항산업과학연구원 | Compisite column structure for steel and concrete |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193623A (en) * | 2016-07-29 | 2016-12-07 | 刘祥锦 | A kind of prefabricated concrete structure construction method |
| TWI687042B (en) * | 2019-06-11 | 2020-03-01 | 李青枬 | Supporting construction method of solar module |
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| Publication number | Publication date |
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| CN105421780B (en) | 2018-08-17 |
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