CN202644799U - Prestressed concrete hollow floor structure based on plastic balls - Google Patents
Prestressed concrete hollow floor structure based on plastic balls Download PDFInfo
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- CN202644799U CN202644799U CN 201220098260 CN201220098260U CN202644799U CN 202644799 U CN202644799 U CN 202644799U CN 201220098260 CN201220098260 CN 201220098260 CN 201220098260 U CN201220098260 U CN 201220098260U CN 202644799 U CN202644799 U CN 202644799U
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- balls
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Abstract
The utility model relates to a prestressed concrete hollow floor structure based on plastic balls. The hollow floor structure is composed of a prestressed concrete beam and a hollow panel, wherein the plastic balls which are hollow are adopted for the inner film of the hollow panel; the span (L) of the prestressed concrete beam is about 7-13.5 m; the prestressed concrete beam is provided with ordinary reinforcements and positive and negative parabolic prestressed reinforcements; the span-thickness ratio (L/H) of the hollow panel is about 24-32; the plastic hollow balls are arranged in the middle of the hollow panel; the clear distance of the plastic hollow balls is not lower than the width of a fixed mount; and a hidden beam can be arranged between adjacent plastic hollow balls. The hollow floor structure is characterized in that the plastic hollow balls are arranged in the middle of the hollow panel; and the positive and negative parabolic prestressed reinforcements are arranged between the plastic hollow balls. The prestressed concrete hollow floor structure based on the plastic balls disclosed by the utility model has the beneficial effects that a visual effect can be improved, the building clearance can be improved, materials can be saved, the dead load can be reduced, the construction period can be reduced, structural members generally cannot crack, and good thermal insulation, sound insulation and fire resistance performances are achieved.
Description
Affiliated technical field
The utility model relates to a kind of pre-stressed concrete hollow building cover structure of building, especially to energy-conservation, save land, pre-stressed concrete hollow building cover structure that water saving, material-saving and protection of the environment etc. reach the green building requirement.
Background technology
At present, known pre-stressed concrete hollow building cover structure is after placing embedded inner mold by certain rule, forms the prestressed concrete floors of cavity in floor through poured in place concrete.Embedded inner mold is the general name that is embedded in the cast-in-place concrete hollow building roof in order to cylinder core, casing and the cylindrical shell block that forms cavity and do not take out, and is called for short internal mold.The requirement that existing inner membrance has " two-step pouring, one-shot forming " usually occurs because of first pouring concrete initial set, elder generation, the bad consequence of after-pouring concrete bonding occur; Some requirements is adopted polyphenyl plate or is fire-retardantly adopted the former fireproof performance bad from ceasing polyphenyl plate, adopts latter's cost too high.
Summary of the invention
In order to overcome the deficiency of pre existing prestressed concrete hollow floor structure globality, fire line and economy, the utility model provides a kind of pre-stressed concrete hollow building cover structure based on baton round, this structure adopts " one-time-concreting, one-shot forming ", avoided connecing batch consequence of face poor attachment because of designing requirement elder generation, rear two-step pouring concrete and appear at; The fire line of this structure employing plastic hollow ball and common plastics tube for building are basic identical, and be better than polyphenyl plate fireproof performance; The plastic hollow ball inner membrance that this structure adopts can utilize waste or used plastics to make, than the fire-retardant polyphenyl plate economy that certainly ceases.
The technical solution of the utility model is: the pre-stressed concrete hollow building cover structure of a kind of building based on baton round, formed by prestressed concrete beam and hollow slab, and the hollow slab inner membrance adopts the plastic hollow ball.The span L scope of prestressed concrete beam is about 7～13.5 meters, configures on request plain bars and positive and negative parabola shaped prestressed reinforcement.The thickness rate scope of striding of hollow slab is about L/H=24～32, by spot welding reinforced mesh fixed mount, the plastic hollow ball is arranged in the middle of hollow slab, the plastic hollow ball mainly is subjected to force direction to present " in-line " layout at two, the diameter of hollow ball is that hollow slab thickness deducts on the hollow slab, the minimum thickness of the Sub, the minimum thickness of hollow slab up/down surface layer is not less than 40 millimeters usually, the spacing of hollow ball is not less than the width on hollow ball fixed mount section base, between the plastic hollow ball, arrange positive and negative parabola presstressed reinforcing steel, on hollow slab, the Sub arranges plain bars.It is characterized in that: the plastic hollow ball is arranged in the hollow slab middle, between the plastic hollow ball, arranges at the upper and lower surface layer of hollow slab plain bars to be set by positive and negative parabola presstressed reinforcing steel.
Feature of the present utility model also is: by spot welding reinforced mesh fixed mount the plastic hollow ball is fixed, presented " in-line " at two main stress direction plastic hollow balls and arrange.
Feature of the present utility model also is: the plastic hollow ball can utilize waste or used plastics to make.
Feature of the present utility model also is: desirable 100,120,150,180,200,220,250,280,300,350,400,450,500 millimeters of the diameter D of plastic hollow ball, its physical and mechanical property meets the regulation of existing related standards.
Feature of the present utility model also is: the spacing of plastic hollow ball is not less than the width on hollow ball fixed mount section base usually, also can between adjacent plastic hollow ball dark beam can be set.
Feature of the present utility model also is: the plain bars of the upper and lower surface layer of hollow slab, can on-the-spot colligation, and also can adopt the spot welding reinforced mesh.
The beneficial effects of the utility model are, can realize that the surface is the floor on plane, can reduce height, the increase building of building cover structure and use headroom, integrality performance of the structure is better, be normally not present the crack, have preferably insulation, sound insulation and flameproof effect, can save material, alleviate deadweight, can shorten the construction period, reduce difficulty of construction.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is structural plan figure of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
1. frame columns among the figure, 2. prestressed concrete beam, 3. presstressed reinforcing steel, 4. stretching end/fixed end, 5. plastic hollow ball, 6. hollow slab, the 7. the Sub of hollow slab, 8. the upper layer of hollow slab, the 9. plain bars of the upper and lower surface layer of hollow slab, 10. hollow ball fixed mount.
The specific embodiment
In Fig. 1,2,3,12 * 12 meters of colum network sizes along the axis arranged prestressed concrete beam (2) of frame column (1), are arranged concrete hollow dull and stereotyped (6) between axis.Behind prestressed concrete beam (2) and hollow slab (6) bed die, the stressed plain bars (9) of colligation prestressed concrete beam (2) and hollow slab the Sub, plastic hollow ball (5) is packed in its fixed mount (10), hollow ball fixed mount (10) is fixed on the hollow slab bed die, baton round fixed mount (10) is in the horizontal and vertical direction " in-line " and arranges, 256.5 millimeters of spacings, be positioned at the hollow slab middle, arrange in the horizontal and vertical direction positive and negative parabola unbonded prestressing tendon (3) between the plastic hollow ball (5), the stressed plain bars (9) of colligation hollow slab upper layer, concreting gets final product.
Claims (7)
1. the building pre-stressed concrete hollow building cover structure based on baton round is comprised of prestressed concrete beam and hollow slab, and the hollow slab inner membrance adopts the plastic hollow ball; The span L of prestressed concrete beam is 7～13.5 meters, configuration plain bars and positive and negative parabola shaped prestressed reinforcement; The thickness rate of striding of hollow slab is L/H=24～32, by spot welding reinforced mesh fixed mount, the plastic hollow ball is arranged in the middle of hollow slab, the plastic hollow ball mainly is subjected to force direction to present " in-line " layout at two, the diameter of hollow ball is that hollow slab thickness deducts on the hollow slab, the minimum thickness of the Sub, the minimum thickness of hollow slab up/down surface layer is not less than 40 millimeters, the spacing of hollow ball is not less than the width on hollow ball fixed mount section base, between the plastic hollow ball, arrange positive and negative parabola presstressed reinforcing steel, on hollow slab, the Sub arranges plain bars, it is characterized in that: the plastic hollow ball is arranged in the hollow slab middle, between the plastic hollow ball, arrange positive and negative parabola presstressed reinforcing steel, on hollow slab, the Sub arranges plain bars.
2. the pre-stressed concrete hollow building cover structure of a kind of building according to claim 1 based on baton round, it is characterized in that: the presstressed reinforcing steel in the above-mentioned prestressed concrete beam replaces with plain bars.
3. the pre-stressed concrete hollow building cover structure of a kind of building according to claim 1 based on baton round, it is characterized in that: by spot welding reinforced mesh fixed mount the plastic hollow ball is fixed, presented " in-line " at two main stress direction plastic hollow balls and arrange.
4. the pre-stressed concrete hollow building cover structure of a kind of building according to claim 1 based on baton round, it is characterized in that: the plastic hollow ball utilizes waste or used plastics to make.
5. the pre-stressed concrete hollow building cover structure of a kind of building according to claim 1 based on baton round, it is characterized in that: the spacing of plastic hollow ball is not less than the width on hollow ball fixed mount section base.
6. the pre-stressed concrete hollow building cover structure of a kind of building according to claim 1 based on baton round is characterized in that: can between adjacent plastic hollow ball dark beam be set.
7. the pre-stressed concrete hollow building cover structure of a kind of building according to claim 1 based on baton round is characterized in that: the plain bars of the upper and lower surface layer of hollow slab, on-the-spot colligation or employing spot welding reinforced mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220098260 CN202644799U (en) | 2012-03-15 | 2012-03-15 | Prestressed concrete hollow floor structure based on plastic balls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220098260 CN202644799U (en) | 2012-03-15 | 2012-03-15 | Prestressed concrete hollow floor structure based on plastic balls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202644799U true CN202644799U (en) | 2013-01-02 |
Family
ID=47413923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220098260 Expired - Fee Related CN202644799U (en) | 2012-03-15 | 2012-03-15 | Prestressed concrete hollow floor structure based on plastic balls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202644799U (en) |
-
2012
- 2012-03-15 CN CN 201220098260 patent/CN202644799U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20150315 |
|
| EXPY | Termination of patent right or utility model |