CN1294331C - In-site prestressed concrete sandwiched composite beamless floor structure system and construction method - Google Patents
In-site prestressed concrete sandwiched composite beamless floor structure system and construction method Download PDFInfo
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- CN1294331C CN1294331C CNB2003101169771A CN200310116977A CN1294331C CN 1294331 C CN1294331 C CN 1294331C CN B2003101169771 A CNB2003101169771 A CN B2003101169771A CN 200310116977 A CN200310116977 A CN 200310116977A CN 1294331 C CN1294331 C CN 1294331C
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Abstract
The present invention discloses a cast-in-place prestressed concrete sandwich composite girderless floor plate structure system and a construction method thereof. The structure comprises a plate body of a girderless floor plate, a main submerged slab arris in the floor plate and secondary submerged slab arrises in the floor plate, which are arranged in a shape like the Chinese character 'jing'; prestressed steel bars and stressed steel bars are arranged in the main submerged slab arris; stressed steel bars in the floor plate are arranged in an upper shell and a lower shell of the plate body of the girderless floor plate and the secondary submerged slab arrises in the floor plate, which are arranged in a shape like the Chinese character 'jing'; the inner space of the plate body is filled with a plate core of a polystyrene foaming plate. At the construction field site, the cast-in-place prestressed concrete sandwich composite girderless floor plate structure system with high strength and light weight, which can satisfy construction load bearing requirements, prevent fire, isolate sound and preserve heat, is formed by the supporting of a template, the placement and the tensioning of the prestressed steel bars, the placement and the fixation of the plate core of a polystyrene foaming plate, the depositing of concrete, curing and forming; the cast-in-place prestressed concrete sandwich composite girderless floor plate structure system can be used for girderless construction floor plates in various industrial and civil building structures such as masonry multistory structures, masonry high-rise structures, frame structures, frame-shear wall structures, shear wall structures, etc.
Description
Technical field
The present invention relates to a kind of floor slab structure of many, high building project, be applicable to that especially the building floor height has strict demand, and the compound flat slab construction of a kind of cast-in-situ prestressed concrete sandwich of load, construction work that span is bigger.
Background technology
At present, prestressing force or non-prestressed cast-in-situ concrete flat slab construction that known traditional architecture method adopts, thickness of slab and deadweight are bigger, and the cost height is limited by span of slab, is difficult to penetration and promotion.And the prestressed in-situ depositing concrete hollow floor structure that occurs in recent years.Because being used to form the tubing of plate hollow core can only unidirectionally arrange, make plate differ bigger in both direction distribution of internal force in length and breadth, along tube side to being the less important force direction that is subjected to for mainly being subjected to force direction, vertical tube to be subjected to force direction, approach the single load bearing plate, thereby cause thickness of slab to increase, can't the most reasonable arrangement of reinforcement, make thickness of slab, arrangement of reinforcement that waste all be arranged, building integral weight strengthens, geological process strengthens, and basis and lateral resistant member cross section are bigger, and construction costs is higher.In addition, hollow tube has formed hollow hole, has increased heat-energy losses, reduced heat-insulating property, and, the soundproof effect between the building storey can be reduced, cause the sound isolation of floor performance to reduce, these defectives make it can't satisfy the requirement of country to the building products energy-saving and environmental protection fully.And the hollow tube folk prescription can influence the laying of other professional pipelines to arrangement mode, has increased difficulty of construction.Except that the problems referred to above, the existing bigger problem of this prestressed in-situ depositing concrete hollow floor structure of Chu Xianing in recent years, this exactly inside configuration is placed a large amount of hollow tubes, when cast-in-situ concrete is constructed, can retain certain ponding, these stay the ponding of intralamellar part, can produce corrosion function to reinforcing bar in the plate in the course of time, thereby have buried hidden danger for the safety of building.In this case, how can develop a kind of novel cast-in-situ prestressed concrete flat slab construction that can avoid the weak point of above various cast-in-situ concrete flat slab constructions, become current builing industry problem demanding prompt solution.
Summary of the invention
Purpose of the present invention is exactly to solve the above-mentioned scarce problem that can't satisfy the construction work needs fully of shaking because of present cast-in-situ concrete flat slab construction existence, a kind of cast-in-situ concrete flat slab construction pattern that can meet the construction work needs fully is provided, a kind of compound flat slab construction of improved cast-in-situ prestressed concrete sandwich and building method promptly are provided, make it to satisfy the construction work requirement, and can satisfy the requirement of country the building products environmental protection and energy saving.
For achieving the above object, the technical solution used in the present invention is: the compound flat slab construction of a kind of cast-in-situ prestressed concrete sandwich, comprise the girderless floor plate body, the girderless floor plate body is provided with time submerged plate rib in the plate that main submerged plate rib and well word are arranged in the plate, be filled with a kind of light solid plate core in the inner space that time submerged plate rib is constituted in the plate that main submerged plate rib and well word are arranged in the plate of girderless floor plate body, it is characterized in that: be furnished with prestressed reinforcement and steel bar stress in the main submerged plate rib in the described plate, on the described girderless floor plate body, dispose steel bar stress in the plate in time submerged plate rib in the lower plate shell and in the plate of well word layout.
The building method of this compound flat slab construction carries out at the construction field (site), may further comprise the steps: at first, prop up the exterior sheathing of good floor, in template, place the prestressed reinforcement and the steel bar stress of main submerged plate rib in the plate, prestressed reinforcement is carried out stretch-draw, arrange fire-retardant self-extinguishing type polystyrene foam plate light solid plate core and fixing again, then, the steel bar stress of time submerged plate rib in the placing plate again, at last, poured in place concrete and maintenance are shaped to the compound flat slab construction of cast-in-situ prestressed concrete sandwich.
After adopting such scheme, the present invention compared with prior art has following beneficial effect:
Because compound flat slab construction of cast-in-situ prestressed concrete sandwich of the present invention and building method, utilized the arch without beam technology, the nine-squares beam technology, the cassette ceiling technology, the cast-in-situ concrete flat slab construction is improved, on its plate body, be provided with time submerged plate rib in the plate that main submerged plate rib and well word are arranged in the plate, be furnished with prestressed reinforcement and steel bar stress again in the main submerged plate rib in the plate, on plate body, also disposed steel bar stress in the plate in time submerged plate rib in the lower plate shell and in the plate of well word layout, such structure, can guarantee that floor is stressed, arrangement of reinforcement is the most reasonable, this floor has can bear list, the characteristic of bidirectional stress, more because can two-way conduction load, make this floor stress equalization of both direction in length and breadth, it is heavy to help reducing thickness of slab and plate, makes plate thickness reach minimum, and the cost of floor is also lower.Owing to filled light solid plate core in this floor, it is a kind of flame-retardant polystyrene cystosepiment, has strengthened the soundproof effect of floor effectively, has eliminated the unnecessary heat-energy losses of floor, and the problem of having avoided accumulating the water erosion reinforcing bar fully again.Light solid plate core in this floor also has the effect of being convenient to very much cut, bore a hole, lay pipeline.
In a word, compound flat slab construction of cast-in-situ prestressed concrete sandwich of the present invention and building method, have characteristics such as stressed more reasonable, sound insulation, insulation, fire prevention, waterproof, anti-corrosion of steel bar, high-strength light, its design, making, mounting technique maturation, easy construction is quick, construction noise is low pollution-free, further the reduction of erection time, reduces floor and foundation cost.In addition, it is leading also to possess skills, environmental protection and energy saving, drop into little, advantages such as applied range.Can not only satisfy the construction work requirement, reached the requirement of national energy-conservationization of being advocated of building products, and, the technology of this novel floor slab structure system and job practices, all shortcoming that exist in the existing homogeneous structure system have been overcome, will lead the developing direction of industry, become the up-to-date best upgraded product of building flat slab construction.
Below in conjunction with accompanying drawing the specific embodiment of the present invention is done to describe in further detail.
Description of drawings
Fig. 1 is the compound flat slab construction general structure of a kind of cast-in-situ prestressed concrete sandwich of a present invention schematic diagram.
Fig. 2 is the enlarged diagram of the compound flat slab construction span centre of a kind of cast-in-situ prestressed concrete sandwich of the present invention strip section.
Fig. 3 is the enlarged diagram of the compound flat slab construction slab strips on columns of cast-in-situ prestressed concrete sandwich of the present invention section.
The number in the figure title:
1 girderless floor plate body, 2 light solid plate cores
Time submerged plate rib in main submerged plate rib 4 plates in 3 plates
5 prestressed reinforcements, 6 steel bar stresses
The specific embodiment
As shown in Figure 1, 2, 3, the compound flat slab construction of cast-in-situ prestressed concrete sandwich of the present invention comprises there is not the girderless floor of bright beam plate body 1.This girderless floor plate body 1 is provided with time submerged plate rib 4 in the plate that main submerged plate rib 3 and well word are arranged in the plate, in plate, be furnished with prestressed reinforcement 5 and steel bar stress 6 in the main submerged plate rib 3, in the upper and lower plate shell of girderless floor plate body 1 and in the plate of well word layout, dispose steel bar stress 7 in the plate in time submerged plate rib 4, be filled with light solid plate core 2 in the inner space that time submerged plate rib 4 is constituted in the plate that main submerged plate rib 3 and well word are arranged in the plate of girderless floor plate body 1.Be furnished with prestressed reinforcement 5 and steel bar stress 6 in the described plate in the main submerged plate rib 3 and be the form of structure that under the bigger situation of the suffered load of floor and floor span, adopts, it joins the area of reinforcement of prestressed reinforcement 5 and steel bar stress 6, all need according to the span of suffered load size of floor and floor and stride several situations, definite by calculating, but under the less situation of the suffered load of floor and floor span, in described plate in the main submerged plate rib 3, can adopt the mode that does not dispose prestressed reinforcement 5 and only be furnished with steel bar stress 6, these are all determined by designing and calculating.Time submerged plate rib 4 in the plate that main submerged plate rib 3, well word are arranged in described girderless floor plate body 1 and the plate thereof, the material that its cast-in-situ concrete is adopted is general concrete or light weight aggregate concrete, requirement is determined the thickness of this compound girderless floor under the prerequisite that satisfies stressed, distortion, crashproof, anti-fire.Light solid plate core 2 in the described girderless floor plate body 1 is a kind of heat insulating materials, promptly is a kind of fire-retardant self-extinguishing type polystyrene foam plate.The material of the prestressed reinforcement 5 in the described plate in the main submerged plate rib 3 adopts carbon steel wire, or indented wire, or steel strand, or heat tempering bar, or cold drawn II, III, IX grade reinforcing steel.
The building method of realizing the compound flat slab construction of cast-in-situ prestressed concrete sandwich of the present invention carries out at the construction field (site).Referring to Fig. 1,2,3, during building operations, this girderless floor plate body 1 connects as one with post 10, and the joint of post 10 tops and girderless floor plate body 1 is typically provided with concrete capital reinforcing rib 8.During construction, in girderless floor plate body 1, also to lay each professional pipeline, not shown.Therefore, the compound flat slab construction building method of this cast-in-situ prestressed concrete sandwich will be taken into account these factors simultaneously, may further comprise the steps: at first, prop up the exterior sheathing of good floor, in template, place the prestressed reinforcement 5 and the steel bar stress 6 of main submerged plate rib in the plate, prestressed reinforcement 5 to main submerged plate rib in the plate carries out stretch-draw, arrange heat insulating material light solid plate core 2 again, it is a kind of fire-retardant self-extinguishing type polystyrene foam plate and fixing, then, carry out line layout in each professional floor, the steel bar stress 7 of time submerged plate rib in the placing plate again, concrete capital reinforcing rib 8, at last, poured in place concrete, and maintenance is shaped to the compound flat slab construction of cast-in-situ prestressed concrete sandwich of the present invention.Formed new structure system of this technology and construction technology, it is quick to have an easy construction, and the duration is short, the characteristics that cost is low.
Referring to Fig. 1, the present invention's compound flat slab construction of cast-in-place prestressed cast-in-situ concrete sandwich and building method, can solve present cast-in-situ concrete girderless floor can't satisfy fully the building required, particularly insurmountable sound insulation, be incubated, cause the problem of corrosion of steel bar, but and the reduction of erection time, reduce construction costs, can be used for the flat slab construction system of all types of industries such as many, high-rise, superelevation layer and civilian construction.
Claims (3)
1. compound flat slab construction of cast-in-situ prestressed concrete sandwich, comprise girderless floor plate body (1), girderless floor plate body (1) is provided with time submerged plate rib (4) in the plate that main submerged plate rib (3) and well word are arranged in the plate, be filled with a kind of light solid plate core (2) in the inner space that time submerged plate rib (4) is constituted in the plate that main submerged plate rib (3) and well word are arranged in the plate of girderless floor plate body (1), it is characterized in that: be furnished with prestressed reinforcement (5) and steel bar stress (6) in the described plate in the main submerged plate rib (3), on the described girderless floor plate body (1), dispose steel bar stress in the plate (7) in time submerged plate rib (4) in the lower plate shell and in the plate of well word layout.
2. the compound flat slab construction of a kind of cast-in-situ prestressed concrete sandwich according to claim 1 is characterized in that: only be furnished with steel bar stress (6) in the described plate in the main submerged plate rib (3).
3. building method of realizing the compound flat slab construction of cast-in-situ prestressed concrete sandwich, it is characterized in that: this building method carries out at the construction field (site), may further comprise the steps: at first, prop up the exterior sheathing of good floor, in template, place the prestressed reinforcement (5) and the steel bar stress (6) of main submerged plate rib in the plate, prestressed reinforcement (5) is carried out stretch-draw, arrange fire-retardant self-extinguishing type polystyrene foam plate light solid plate core (2) and fixing again, then, the steel bar stress (7) of time submerged plate rib in the placing plate again, at last, poured in place concrete and maintenance are shaped to the compound flat slab construction of cast-in-situ prestressed concrete sandwich.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101169771A CN1294331C (en) | 2003-12-05 | 2003-12-05 | In-site prestressed concrete sandwiched composite beamless floor structure system and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101169771A CN1294331C (en) | 2003-12-05 | 2003-12-05 | In-site prestressed concrete sandwiched composite beamless floor structure system and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1624266A CN1624266A (en) | 2005-06-08 |
| CN1294331C true CN1294331C (en) | 2007-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2003101169771A Expired - Fee Related CN1294331C (en) | 2003-12-05 | 2003-12-05 | In-site prestressed concrete sandwiched composite beamless floor structure system and construction method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787760B (en) * | 2010-02-26 | 2013-05-01 | 张吉华 | Steel bar concrete precast floor slab |
| CN102400513B (en) * | 2011-10-28 | 2014-06-25 | 王本淼 | Fireproof cast-in-place hollow floor system |
| CN110306673B (en) * | 2019-07-03 | 2021-06-15 | 沈阳建筑大学 | Multi-layer large-space building structure |
| CN113944270A (en) * | 2021-12-16 | 2022-01-18 | 青岛新华友建工集团股份有限公司 | Cast-in-place prestressed concrete sandwich composite beamless floor structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE214645C (en) * | ||||
| CN2351493Y (en) * | 1998-06-05 | 1999-12-01 | 高鸿升 | Thermal insulation sound-proof composite flooring |
| CN1366116A (en) * | 2002-03-06 | 2002-08-28 | 赵仲星 | Technology for building house with slab-type structure |
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2003
- 2003-12-05 CN CNB2003101169771A patent/CN1294331C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE214645C (en) * | ||||
| CN2351493Y (en) * | 1998-06-05 | 1999-12-01 | 高鸿升 | Thermal insulation sound-proof composite flooring |
| CN1366116A (en) * | 2002-03-06 | 2002-08-28 | 赵仲星 | Technology for building house with slab-type structure |
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| Publication number | Publication date |
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| CN1624266A (en) | 2005-06-08 |
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Granted publication date: 20070110 Termination date: 20100105 |