CN102995804A - Method for effectively reducing self-weight of prefabricated composite floor slab - Google Patents
Method for effectively reducing self-weight of prefabricated composite floor slab Download PDFInfo
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- CN102995804A CN102995804A CN2012105758613A CN201210575861A CN102995804A CN 102995804 A CN102995804 A CN 102995804A CN 2012105758613 A CN2012105758613 A CN 2012105758613A CN 201210575861 A CN201210575861 A CN 201210575861A CN 102995804 A CN102995804 A CN 102995804A
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Abstract
A method for effectively reducing self-weight of a prefabricated composite floor slab relates to a method of reducing self-weight of building floor slabs and includes the following steps: light building materials serve as substitutes of concrete on the neutral axis portion of the prefabricated composite floor slab; the light filler composite floor slab is adopted, integral design and calculation are performed according to a normal full composite floor slab, and light fillers are materials with unit mass lower than that of concrete, such as normal polystyrene boards, waterproof empty shells, waterproof perlite and foamed concrete. The method meets development requirements of building industrialization and green architecture of our country, and construction wastes are reused; self-weight of the floor slab can be effectively reduced, floor reinforcements are reduced or slab use span is increased, foundation and aseismic design and construction measure cost is reduced, and accordingly construction cost is saved; manufacture difficulty of factor prefabricated components is not increased; the method facilitates field installation and fastens construction; large field wet construction load is reduced; and the fireproof and safety requirements of the floor slab are met.
Description
Technical field
The present invention relates to a kind of method that alleviates the building floor deadweight, particularly relate to a kind of method that effectively alleviates prefabricated assembled laminated floor slab deadweight.
Background technology
Along with the increasing of China to industrialization of construction industry promotion dynamics, fabricated assembly overall building in all parts of the country continues to bring out, as the Prefabricated stacking floor of important primary structure member in the agent structure, by a large amount of application wherein.
The prefabricated panel of the laminated floor slab that uses in assembled architecture at present, mainly is divided into two kinds of flat and steel bar girder formulas.Flat prefabricated panel is consistent with common superposed type floor principle, namely in prefabricated units processing factory, place in the corresponding mould by the end reinforcing bar of designing requirement with superimposed sheet, form again the prefabricated panel of superimposed sheet after concreting and the maintenance moulding, baseplate reinforcing bar stretches out the precast concrete plank certain-length, so that and beam, the part or all of cast-in-situ concrete of the supporting member such as shear wall and post connects into the monolithic floor, the advantage of this form prefabricated panel is that production technology is simple, convenient operation, shortcoming is if strengthen the span of precast plate, the thickness of slab and the reinforcing bar amount that need corresponding increase pre-erection increase the plate deadweight; Steel bar girder prefabricated panel and the flat main distinction are to adopt steel bar girder to replace and are subjected to the bottom reinforcement bars laid in the superimposed sheet on the force direction, the non-stress direction is laid distributing bar, the steel bar girder top rebars can replace the negative reinforcing bar of the cast-in-place part floor of part, its advantage is owing to adopted steel bar girder, make in the plate reinforcing steel bar bear more reasonable, can increase the span of floor, shortcoming is that this plate generally only is only applicable to the single load bearing floor, and cast-in-place part often must be laid additional negative reinforcing bar.
Above-mentioned typical assembly integrated precast superimposed sheet common ground is that the floor that forms is solid concrete, want to strengthen floor and use span, need to be to increase prefabricated panel thickness and arrangement of reinforcement as cost, the gross weight of building structure is increased, bring difficulty for basis, seismic design and the construction of building, improved simultaneously the construction cost of building.
Summary of the invention
The object of the present invention is to provide a kind of method that effectively alleviates prefabricated assembled laminated floor slab deadweight.The method utilize light building material as prefabricated assembled laminated floor slab to whole floor stressed with the not most of concrete alternative of stiffness contribution, thereby effectively reduce the deadweight of prefabricated assembled laminated floor slab and arrangement of reinforcement.
The objective of the invention is to be achieved through the following technical solutions:
Effectively alleviate the method for prefabricated assembled laminated floor slab deadweight, described method comprises following content: with light building material as the concrete alternative of prefabricated assembled laminated floor slab neutral axis part; Adopt light filling thing laminated floor slab, carry out global design and calculating by common full prefabricated hollow floor, the light filling thing is that the unit masses such as common benzene plate, waterproof ghost, water-proof pearlite, foamed concrete are lower than concrete material.
The described method that effectively alleviates the deadweight of prefabricated assembled laminated floor slab, described light filling thing adopt according to self characteristics and put, get final product firm the connection on bonding or link mounting method, measure and the prefabricated panel.
The described method that effectively alleviates prefabricated assembled laminated floor slab deadweight, the shape of described filler adopts arbitrary form.
Advantage of the present invention and effect are:
1. the present invention meets the demand for development of China's architectural industrialization and green building, the recycling building castoff;
2. the present invention effectively alleviates floor deadweight, less plate arrangement of reinforcement or increases plate use span and less basis and seismic design and working measure cost, thereby saves construction cost;
3. the present invention does not increase the manufacture difficulty of factory-made component;
4. scene of the present invention is easy for installation, accelerates speed of application;
5. the present invention reduces a large amount of situ wet workloads;
6. the present invention satisfies the fire safety requirement of floor.
Description of drawings
Fig. 1 is that the light filling thing of difformity of the present invention, material is put mounting method on the superimposed sheet prefabricated panel;
Fig. 2 is the section of Fig. 1 method of the present invention;
Fig. 3 is the bonding mounting method of the present invention on superimposed sheet prefabricated (steel bar girder) base plate;
Fig. 4 is the section of Fig. 3 method of the present invention;
Fig. 5 is the mounting method of the employing link of the present invention on the superimposed sheet prefabricated panel;
Fig. 6 is the section of Fig. 5 method of the present invention.
The specific embodiment
Below in conjunction with
EmbodimentThe present invention is described in detail.
This method is in a kind of situation not increasing the prefabricated panel difficulty of processing, reduces as far as possible the measure of floor deadweight and arrangement of reinforcement.This principle is exactly with near the concrete little to strengthening floor slab rigidity and stressed contribution the floor neutral axis, substitute to reduce the deadweight of floor with light building material, thereby reduce integrally-built weight, reach and reduce the floor arrangement of reinforcement, reduce the purpose of geological process; As long as the unit mass of thing material is lower than concrete unit mass as an alternative in principle, just can reach this effect; The method is applicable to design, processing and the construction overall process of common laminated floor slab simultaneously.
The light building material filler that adopts can be that common benzene plate, waterproof ghost, water-proof pearlite, foamed concrete etc. unit mass is lower than concrete material (or building castoff); Get final product firm the connection on the mounting methods such as the light filling thing can adopt according to the characteristics of self and put, bonding or link, measure and the prefabricated panel.
This method is in a kind of situation not increasing the prefabricated panel difficulty of processing, reduces as far as possible the measure of floor deadweight and arrangement of reinforcement.When structure floor design and calculating, the principal element that affects strengthening floor slab rigidity and arrangement of reinforcement has the neutral axis moment of inertia and effective depth of compression zone of floor, along the FFL direction, gets over the concrete of distal part from neutral axis, contribution for the neutral axis moment of inertia is larger, otherwise contribution is less.This method is utilized this principle exactly, and light building material as the concrete alternative of neutral axis part that prefabricated assembled laminated floor slab is stressed to whole floor and stiffness contribution is little, is reduced the floor deadweight; As long as the unit mass of thing material is lower than concrete unit mass as an alternative in principle, just can reach this effect; The method is applicable to flat and design, processing and construction overall process steel bar girder formula laminated floor slab simultaneously.
Thing building structure floor design or add man-hour, can be with the light filling thing laminated floor slab that adopts, carry out global design and calculating (needing to consider the filler actual weight) by common full prefabricated hollow floor, the computational methods of all the other laminated floor slabs are identical with common laminated floor slab.The light filling thing can be that common benzene plate, waterproof ghost, water-proof pearlite, foamed concrete etc. unit mass is lower than concrete material (or building castoff); Get final product firm the connection on the mounting methods such as the light filling thing can adopt according to the characteristics of self and put, bonding or link, measure and the prefabricated panel; The shape of filler can adopt arbitrary form, and the mounting means of typical several fillers is seen Fig. 1-6.
The present invention is in Fig. 1-6, and the prefabricated panel concrete 1 of represented different laminated floor slabs, baseplate reinforcing bar 2, light filling thing 3, the superimposed concrete 4 in top, laminated floor slab are born reinforcing bar 5, steel bar girder 6, bonding agent 7, link 8.
Among the present invention about concrete, the requirement of reinforcing bar processing and construction all can be by " Code for design of concrete structures " (GB50010), " concrete structure engineering construction quality standards of acceptance " (GB50204), " technical specification for concrete structures of high-rise building " (JGJ3), " Code for design of steel structures " (GB50017), " code for acceptance of construction quality of steel structures " (GB50205), " Technical Specification for Steel Structure of Tall Buildings " (JGJ99-98), " Code for design of masonry strucres " (GB5003), " steel reinforced concrete combination technique rules " (JGJ 138), " steel reinforced concrete structure tecnical regulations " (YB9082), the national regulations such as " Code for fire protection design of buildings " (GB 50016), rules are carried out.
Claims (3)
1. effectively alleviate the method for prefabricated assembled laminated floor slab deadweight, it is characterized in that described method comprises following content: with light building material as the concrete alternative of prefabricated assembled laminated floor slab neutral axis part; Adopt light filling thing laminated floor slab, carry out global design and calculating by common full prefabricated hollow floor, the light filling thing is that the unit masses such as common benzene plate, waterproof ghost, water-proof pearlite, foamed concrete are lower than concrete material.
2. the method that effectively alleviates the deadweight of prefabricated assembled laminated floor slab according to claim 1, it is characterized in that described light filling thing adopts according to self characteristics and put, get final product firm the connection on bonding or link mounting method, measure and the prefabricated panel.
3. the method that effectively alleviates prefabricated assembled laminated floor slab deadweight according to claim 1 is characterized in that the shape of described filler adopts arbitrary form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105758613A CN102995804A (en) | 2012-12-27 | 2012-12-27 | Method for effectively reducing self-weight of prefabricated composite floor slab |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012105758613A CN102995804A (en) | 2012-12-27 | 2012-12-27 | Method for effectively reducing self-weight of prefabricated composite floor slab |
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| CN102995804A true CN102995804A (en) | 2013-03-27 |
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| CN2012105758613A Pending CN102995804A (en) | 2012-12-27 | 2012-12-27 | Method for effectively reducing self-weight of prefabricated composite floor slab |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469949A (en) * | 2013-10-07 | 2013-12-25 | 王睿敏 | Prefabricated composite floor slab and floor slab layer as well as construction method |
| CN104005502A (en) * | 2014-05-04 | 2014-08-27 | 黄涛 | Prefabricated and light floor cover plate and industrialized building house floor plate structure |
| CN106522436A (en) * | 2016-12-22 | 2017-03-22 | 中冶京诚工程技术有限公司 | Prefabricated light floor slab |
| CN107989245A (en) * | 2018-01-19 | 2018-05-04 | 中国矿业大学 | Modular architectural assembled lamination occluding floorslab and construction method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032690A (en) * | 1988-08-29 | 1989-05-03 | 和景义 | Superposed hollow building roof and construction method thereof |
| EP0745169A1 (en) * | 1994-02-17 | 1996-12-04 | AVI ALPENLAENDISCHE VEREDELUNGS-INDUSTRIE, Gesellschaft m.b.H. | Reinforcing member for a ribbed poured concrete ceiling |
| CN2706530Y (en) * | 2004-04-05 | 2005-06-29 | 沈阳中建现代建筑技术研发有限公司 | Prestressed concrete laminated slab |
| CN200999409Y (en) * | 2007-01-24 | 2008-01-02 | 从卫民 | Prefabricated thin-plate cast-in-situs super-positioned hollow core floor slab |
| CN101787760A (en) * | 2010-02-26 | 2010-07-28 | 张吉华 | Steel bar concrete precast floor slab |
| CN101831976A (en) * | 2009-12-24 | 2010-09-15 | 湖南大学 | Prefabricated steel rib bottom plate-concrete overlapped hollow floor system |
| CN102787689A (en) * | 2012-07-31 | 2012-11-21 | 长沙远大住宅工业有限公司 | Prefabricated overlapped hollow floor and fabricating method thereof |
-
2012
- 2012-12-27 CN CN2012105758613A patent/CN102995804A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032690A (en) * | 1988-08-29 | 1989-05-03 | 和景义 | Superposed hollow building roof and construction method thereof |
| EP0745169A1 (en) * | 1994-02-17 | 1996-12-04 | AVI ALPENLAENDISCHE VEREDELUNGS-INDUSTRIE, Gesellschaft m.b.H. | Reinforcing member for a ribbed poured concrete ceiling |
| CN2706530Y (en) * | 2004-04-05 | 2005-06-29 | 沈阳中建现代建筑技术研发有限公司 | Prestressed concrete laminated slab |
| CN200999409Y (en) * | 2007-01-24 | 2008-01-02 | 从卫民 | Prefabricated thin-plate cast-in-situs super-positioned hollow core floor slab |
| CN101831976A (en) * | 2009-12-24 | 2010-09-15 | 湖南大学 | Prefabricated steel rib bottom plate-concrete overlapped hollow floor system |
| CN101787760A (en) * | 2010-02-26 | 2010-07-28 | 张吉华 | Steel bar concrete precast floor slab |
| CN102787689A (en) * | 2012-07-31 | 2012-11-21 | 长沙远大住宅工业有限公司 | Prefabricated overlapped hollow floor and fabricating method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469949A (en) * | 2013-10-07 | 2013-12-25 | 王睿敏 | Prefabricated composite floor slab and floor slab layer as well as construction method |
| CN104005502A (en) * | 2014-05-04 | 2014-08-27 | 黄涛 | Prefabricated and light floor cover plate and industrialized building house floor plate structure |
| CN106522436A (en) * | 2016-12-22 | 2017-03-22 | 中冶京诚工程技术有限公司 | Prefabricated light floor slab |
| CN107989245A (en) * | 2018-01-19 | 2018-05-04 | 中国矿业大学 | Modular architectural assembled lamination occluding floorslab and construction method |
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Application publication date: 20130327 |