CN103046678A - Method for constructing BDF (building distribution frame) hollow floorslab - Google Patents
Method for constructing BDF (building distribution frame) hollow floorslab Download PDFInfo
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- CN103046678A CN103046678A CN201210577344XA CN201210577344A CN103046678A CN 103046678 A CN103046678 A CN 103046678A CN 201210577344X A CN201210577344X A CN 201210577344XA CN 201210577344 A CN201210577344 A CN 201210577344A CN 103046678 A CN103046678 A CN 103046678A
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Abstract
The invention relates to a building construction method, in particular to a method for constructing a BDF (building distribution frame) hollow floorslab and solves the problem about low construction efficiency caused by an existing complicated construction method of the BDF hollow floorslab. The method for constructing the BDF hollow floorslab includes steps of paving a bottom formwork; binding bottom plate reinforced ribs and beam reinforced ribs; disposing a BDF box in meshes formed by the bottom plate reinforced ribs and the beam reinforced ribs; setting anti-floating points, threading 12-14# double-strand lead wires into holes on the bottom formwork to be firmly bound with a formwork support; binding panel reinforced ribs on the top of the BDF box longitudinally and horizontally, binding the panel reinforced ribs with the beam reinforced ribs, and fixing the other ends of the 12-14# double-strand lead wires on the panel reinforced ribs; casting concrete; and maintaining and detaching the formwork. The method for constructing the BDF hollow floorslab is simple in processes, shorter in construction period, high in construction efficiency and widely applicable to construction of the BDF hollow floorslab.
Description
Technical field
The present invention relates to construction techniques, be specially a kind of job practices of BDF hollow floor slab.
Background technology
Life is closely related with the space, space and building interdependence.Along with improving constantly of socioeconomic development and people's living standard, all kinds of buildings are found development towards variation, and the traditional architecture structure adopts Vierendeel girder, plate scheme mostly, thereby has greatly restricted the headway of building, has reduced it and has used function.How being embodied as the large bay, large span, the large load that satisfy building, reaching again the horizontal structure system without bright beam or wide-flat beam and flexible isolation simultaneously, is the difficult problem on long-term puzzlement building circle.And the research and development of BDF thin-wall box body success for the cast-in-situ concrete Open-web Floor Frame provides a kind of dependable performance, stay-in-grade interior modular form, can be saved concrete amount, reduces geological process; Reduce the reinforcement ratio of floor, reduced construction costs.But the job practices complex procedures of existing BDF hollow floor slab has increased time and the difficulty of construction of constructing, and causes efficiency of construction low.
Summary of the invention
The present invention provides a kind of job practices of BDF hollow floor slab for the job practices complexity that solves existing BDF hollow floor slab causes the low problem of efficiency of construction.
The present invention adopts following technical scheme to realize: the job practices of BDF hollow floor slab comprises the steps:
Step 1: the rough ground at the formwork support body is laid soffit formwork;
Step 2, the design position colligation baseplate reinforcing bar on soffit formwork, beam steel, baseplate reinforcing bar and beam steel are formed for placing the grid of BDF casing, and in beam steel preheating embedding line;
Step 3: in the grid of baseplate reinforcing bar and beam steel formation, place the BDF casing;
Step 4: establishing anti-floating point (being that the anti-floating point is positioned on foursquare four angles that the length of side is 1500-2000mm) every the 1500-2000mm place in length and breadth on the soffit formwork, in the boring of the anti-floating point position of soffit formwork, firm with the Kong Bingyu formwork support body colligation that the bifilar galvanized wire of 12#-14# passes on the soffit formwork;
Step 5: the colligation plate face reinforcing bar and plate face reinforcing bar and beam steel carried out colligation in length and breadth at the top of BDF casing is fixed on the other end of the bifilar galvanized wire of 12#-14# on the plate face reinforcing bar; Place supporting steel bar at anti-floating point;
Step 6: concreting;
Step 7: maintenance, after concrete intensity reaches designing requirement, carry out form removal.
Job practices operation of the present invention is simple, has effectively shortened the duration, and efficiency of construction is high; The job practices complexity that has solved existing BDF hollow floor slab causes the low problem of efficiency of construction, can be widely used in the construction of BDF hollow floor slab.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among the figure: 1-formwork support body; The 2-soffit formwork; The 3-baseplate reinforcing bar; The 4-cushion block; The 5-beam steel; The 6-BDF casing; The bifilar galvanized wire of 7-; 8-plate face reinforcing bar; The 9-parallels.
The specific embodiment
The job practices of BDF hollow floor slab comprises the steps:
Step 1: the rough ground at formwork support body 1 is laid soffit formwork 2;
Step 2, the design position colligation baseplate reinforcing bar 3 on soffit formwork 2, beam steel 5, baseplate reinforcing bar 3 and beam steel 5 are formed for placing the grid of BDF casing 6, and at beam steel 5 interior preheating embedding lines;
Step 3: in the grid of baseplate reinforcing bar 3 and beam steel 5 formation, place BDF casing 6;
Step 4: on soffit formwork 2 in length and breadth every 1500-2000mm(1500mm, 1750mm, 2000mm) locate to establish the anti-floating point, in the boring of the anti-floating point position of soffit formwork 2, firm with Kong Bingyu formwork support body 1 colligation that the bifilar galvanized wire 7 of 12#-14# passes on the soffit formwork 2;
Step 5: the colligation plate face reinforcing bar 8 and plate face reinforcing bar 8 and beam steel 5 carried out colligation in length and breadth at the top of BDF casing 6, with 12#-14#(12#, 13#, 14#) other end of bifilar galvanized wire 7 is fixed on the plate face reinforcing bar 8; Place supporting steel bar at anti-floating point;
Step 6: concreting;
Step 7: maintenance, after concrete intensity reaches designing requirement, carry out form removal.
During implementation, between soffit formwork 2 and baseplate reinforcing bar 3 and BDF casing 6 and plate face reinforcing bar 8, be provided with parallels 9 and quantity is 2 of every square meters; The cushion block 4 that all to place two thickness between four sides of BDF casing 6 and beam steel 5 be 10-15mm; Thereby avoided direct contact the between soffit formwork and baseplate reinforcing bar, BDF casing and plate face reinforcing bar, casing and the beam steel.
Claims (2)
1.BDF the job practices of hollow floor slab is characterized in that: comprise the steps:
Step 1: lay soffit formwork (2) at the rough ground of formwork support body (1);
Step 2, the design position colligation baseplate reinforcing bar (3) on soffit formwork (2), beam steel (5), baseplate reinforcing bar (3) and beam steel (5) are formed for placing the grid of BDF casing (6), and in beam steel (5) preheating embedding line;
Step 3: in the grid of baseplate reinforcing bar (3) and beam steel (5) formation, place BDF casing (6);
Step 4: on soffit formwork (2), establish the anti-floating point every the 1500-2000mm place in length and breadth, in the boring of the anti-floating point position of soffit formwork (2), firm with Kong Bingyu formwork support body (1) colligation that the bifilar galvanized wire of 12#-14# (7) passes on the soffit formwork (2);
Step 5: the colligation plate face reinforcing bar (8) and plate face reinforcing bar (8) and beam steel (5) carried out colligation in length and breadth at the top of BDF casing (6) is fixed on the other end of the bifilar galvanized wire of 12#-14# (7) on the plate face reinforcing bar (8); Place supporting steel bar at anti-floating point;
Step 6: concreting;
Step 7: maintenance, after concrete intensity reaches designing requirement, carry out form removal.
2. the job practices of BDF hollow floor slab according to claim 1 is characterized in that; Between soffit formwork (2) and baseplate reinforcing bar (3) and BDF casing (6) and plate face reinforcing bar (8), be provided with parallels (9) and quantity is 2 of every square meters; The cushion block (4) that all to place two thickness between four sides of BDF casing (6) and beam steel (5) be 10-15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210577344XA CN103046678A (en) | 2012-12-27 | 2012-12-27 | Method for constructing BDF (building distribution frame) hollow floorslab |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210577344XA CN103046678A (en) | 2012-12-27 | 2012-12-27 | Method for constructing BDF (building distribution frame) hollow floorslab |
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| CN103046678A true CN103046678A (en) | 2013-04-17 |
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| CN201210577344XA Pending CN103046678A (en) | 2012-12-27 | 2012-12-27 | Method for constructing BDF (building distribution frame) hollow floorslab |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628683A (en) * | 2013-12-10 | 2014-03-12 | 中铁二十三局集团有限公司 | Construction method of cast-in-place hollow girderless floor |
| CN105133768A (en) * | 2015-08-21 | 2015-12-09 | 上海宝冶集团有限公司 | Cast-in-place hollow floor provided with large-section BDF box bodies and construction method of cast-in-place hollow floor |
| CN110258883A (en) * | 2019-06-24 | 2019-09-20 | 南通大学 | A kind of construction method of hollow floor BDF steel mesh film filling cabinet |
Citations (5)
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| CN101109200A (en) * | 2007-07-20 | 2008-01-23 | 湖南省建筑工程集团总公司 | Construction method for thin wall housing body mould shell cast-in-place concrete building roof |
| CN201021513Y (en) * | 2007-02-02 | 2008-02-13 | 李景献 | A casting concrete filling thin wall box body |
| CN101798853A (en) * | 2010-03-16 | 2010-08-11 | 南通华荣建设集团有限公司 | Construction method of thin-wall box body hollow floor slab |
| CN101899874A (en) * | 2009-05-26 | 2010-12-01 | 内蒙古兴泰建筑有限责任公司 | Thin-wall box-body cast-in-place concrete hollow floor slab |
| CN202380618U (en) * | 2011-07-26 | 2012-08-15 | 广州市第一建筑工程有限公司 | Device used for positioning thin-wall square boxes in hollow floor framework |
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- 2012-12-27 CN CN201210577344XA patent/CN103046678A/en active Pending
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| CN201021513Y (en) * | 2007-02-02 | 2008-02-13 | 李景献 | A casting concrete filling thin wall box body |
| CN101109200A (en) * | 2007-07-20 | 2008-01-23 | 湖南省建筑工程集团总公司 | Construction method for thin wall housing body mould shell cast-in-place concrete building roof |
| CN101899874A (en) * | 2009-05-26 | 2010-12-01 | 内蒙古兴泰建筑有限责任公司 | Thin-wall box-body cast-in-place concrete hollow floor slab |
| CN101798853A (en) * | 2010-03-16 | 2010-08-11 | 南通华荣建设集团有限公司 | Construction method of thin-wall box body hollow floor slab |
| CN202380618U (en) * | 2011-07-26 | 2012-08-15 | 广州市第一建筑工程有限公司 | Device used for positioning thin-wall square boxes in hollow floor framework |
Non-Patent Citations (3)
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| 冯永峰: "现浇无梁空心楼盖BDF箱体在某工程中的应用", 《山西建筑》, vol. 37, no. 3, 31 January 2011 (2011-01-31) * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628683A (en) * | 2013-12-10 | 2014-03-12 | 中铁二十三局集团有限公司 | Construction method of cast-in-place hollow girderless floor |
| CN105133768A (en) * | 2015-08-21 | 2015-12-09 | 上海宝冶集团有限公司 | Cast-in-place hollow floor provided with large-section BDF box bodies and construction method of cast-in-place hollow floor |
| CN110258883A (en) * | 2019-06-24 | 2019-09-20 | 南通大学 | A kind of construction method of hollow floor BDF steel mesh film filling cabinet |
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Application publication date: 20130417 |