CN102758450A - Large-span prestressed trough composite slab used as roof of basement - Google Patents
Large-span prestressed trough composite slab used as roof of basement Download PDFInfo
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- CN102758450A CN102758450A CN2011101156742A CN201110115674A CN102758450A CN 102758450 A CN102758450 A CN 102758450A CN 2011101156742 A CN2011101156742 A CN 2011101156742A CN 201110115674 A CN201110115674 A CN 201110115674A CN 102758450 A CN102758450 A CN 102758450A
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Abstract
The invention discloses a large-span prestressed trough composite slab used as a roof of a basement. The large-span prestressed trough composite slab is characterized in that: the large-span prestressed trough composite slab is a trough slab in the appearance, and the large-span prestressed trough composite slab and an upper composite layer form a functional component. The trough large load meets the use requirements of underground garages; the large span saves parking spaces; the trough narrow slab surface saves the cost and the floor height; the moderate rib height can meet the requirement on load bearing, and the requirement that air channels are formed on the ribs, and does not increase the floor height; and the trough transverse air channels are easy to connect. The large-span prestressed trough composite slab is used on the roofs of the underground garages, can quicken the construction period, reduces the floor height and the cost, saves column grids, increases the parking spaces and improves the level of the underground garages.
Description
Technical field
The invention belongs to building material field, relate to a kind of reinforced concrete sandwich bearing carrier, particularly relate to and earthing is arranged above a kind of, run the big load prestressing force of the large span flute profile superimposed sheet on the basement plate top of fire fighting truck.
Background technology
The large span prestressed concrete trough slab is the prefabricated reinforced concrete bearing carrier that beam slab combines, and is made up of roomy panel and two narrow and high ribs.Its panel is horizontal load-carrying members, is again the pressure zone of vertical load-bearing rib.So the large span prestressed concrete trough slab has good structural mechanical property, clear and definite power transmission level, succinct geometry is a kind of large span, big load, big area coverage and both economical bearing carrier of can be made into.
All be 8 meters * 8 meters left and right sides post nets or 8 meters * 6 meters post nets at present in underground garage and the construction of semi-underground garage, not only cost is high, long construction period, and space availability ratio is extremely low, and parking stall quantity is less, and is not attractive in appearance again.
Summary of the invention
The objective of the invention is to above problem to present underground garage and semi-underground garage; Thereby provide a kind of big load prestressing force of large span flute profile superimposed sheet to simplify building structure as underground garage plate top; Save the duration, save cost, save the soil; Particularly save excavation area or save the parking stall, improve underground garage and the class that reaches semi-underground garage.
Technical scheme of the present invention is following: when design and making; Make the main muscle on the superimposed rib of slab of flute profile with prestress wire; Adopt wide little, the form that the similar double T plate of flute profile removes the edge of a wing, both sides of plate, thereby it is high to reduce rib, forms with common net sheet, riblet, embedded part reinforcing bar and concrete for making; For example, be Qd=7T/m in the overlapping layers design load
2Situation under, 16.8 meters of spans of slab, 1.2 meters of plate width; Making the rib height is 0.9 meter; Making post net beam and column with conventional method can be 6 * 16.8m, and further,, 1.2m superimposed bearing capacity wide like: 16.8 meters rib height, 0.9m plate as the big load prestressing force of the large span flute profile superimposed sheet on large span underground garage and semi-underground garage plate top is the trough slab of 6.8T; In 6 meters * 16.8 meters left and right sides beam column nets of post net, be placed on the L beam, L beam girder can flush with the trough slab top basically.
Further, make 0.12～0.17 meter of in-situ layer onboard, and the cementation of fissures, further waterproof, on add earthing and get final product.
Further, at rib of slab internal fan pipeline, then can on rib of slab, punch if desired, the blower fan passway is done at 4 sealings hole, two sides, hole.As open: 1 meter * 0.4 meter two, get out of the way top wing plate pressure zone about 300, get out of the way the above 200mm of prestressed reinforcement district, bottom 2m, about surplus 0.4m.
Further, center on cementation of fissures formation transversal ventilation passage around the junction between two plates between the air blower tube road junction between trough slab, form the longitudinal ventilation passage to the both sides of the chest sealing, and pass through in the reinforcing that can on girder, punch between the longitudinal ventilation passage.
So just realized as the big load prestressing force of the large span flute profile superimposed sheet of basement and semi-underground shed deckhead underground garage with and the application in semi-underground garage as: 1. 16.8 meters span has solved 2 row parking stalls 1 and has drained the corridor problem, than Duoing 10%～20% parking stall or save 10%～20% excavation area with cast-in-place; 2. the L beam has solved a part of floor height and has reduced problem, superimposed sheet has solved integrity issues, has formed assembled integral and has not only satisfied the ductility performance of member but also solved the rigidity waterproof problem, and load has solved top between 3～8T
1 meter～2 metersEarthing on the fire fighting truck problem of going further, flute profile has reduced floor height than double T shape, though reduced 1 times the effective area of the wide 1.2m of plate than 2.4m, has lowered 80 yuan/m of cost on the whole
2About, the fan passage mouth does not still reduce for 1.2m, has formed flute profile again, helps the connection of transversal ventilation mouth on the rib, and floor height leaves enough rib height again and punches from 1.2 meters high 0.9m that reduce to of double T plate.
Description of drawings:
The big load prestressing force of large span flute profile superimposed sheet sketch map as basement roof
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
As shown in the figure:
The present invention is the flute profile superimposed sheet, and span is between the 12-22 rice, and plate is wide to be about 1.2m, and plate hight is about 0.9m, is carried as 3-9T/m
2Between, superimposed trace can be arranged on the plate face or reserve exposed steel bar.In design and when making, make the main muscle on the superimposed rib of slab of flute profile with prestress wire, adopt wide little, the form that the similar double T plate of flute profile removes the edge of a wing, both sides of plate, thereby it is high to reduce rib, forms with common net sheet, riblet, embedded part reinforcing bar and concrete for making.Water post, L beam with conventional method, break plate on the L beam, make in-situ layer above that, and irritate the plate seam.Make the blower fan pipeline like need, then can be in hole-opening on the position as stated on the rib, and the hole junction forms the transversal ventilation passage around its cementation of fissures between two plates, forms the longitudinal ventilation passage to the both sides of the chest sealing.
Claims (3)
1. the big load prestressing force of the large span flute profile superimposed sheet as basement roof is characterized in that: span is big, carrying is high, wide little, the low high flute profile superimposed sheet of rib of plate: its span is between 22 meters of 9 meters ∽; The rib height is between 1.5 meters of 0.8 meter ∽; Between 1.5 meters of the wide 0.9 meter ∽ of plate, design load is 3 ∽ 9T/m
2Between.
2. as claimed in claim 1ly make overlapping layers with superimposed trace or exposed steel bar as leaving on the big load prestressing force of the large span flute profile superimposed sheet plate face of basement roof.
3. the big load prestressing force of the large span flute profile superimposed sheet as basement roof as claimed in claim 1 is characterized in that: plate is provided with overlapping layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101156742A CN102758450A (en) | 2011-04-26 | 2011-04-26 | Large-span prestressed trough composite slab used as roof of basement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101156742A CN102758450A (en) | 2011-04-26 | 2011-04-26 | Large-span prestressed trough composite slab used as roof of basement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102758450A true CN102758450A (en) | 2012-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101156742A Pending CN102758450A (en) | 2011-04-26 | 2011-04-26 | Large-span prestressed trough composite slab used as roof of basement |
Country Status (1)
| Country | Link |
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| CN (1) | CN102758450A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322163A (en) * | 2010-06-18 | 2012-01-18 | 柳忠林 | Large-span large-load prestressed grooved laminated slab used as basement roof |
| CN110159272A (en) * | 2019-05-22 | 2019-08-23 | 河南省交通规划设计研究院股份有限公司 | The construction method of large span city tunnel with box top board structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2878563Y (en) * | 2006-02-24 | 2007-03-14 | 北京宇星国科科技发展有限公司 | Two-way pre-stressed floor/roofing and wall body laminated hollow plate |
| US20080010943A1 (en) * | 2006-07-13 | 2008-01-17 | Marschke Carl R | Hollow Core Floor and Deck Element |
| CN102287022A (en) * | 2010-06-18 | 2011-12-21 | 柳忠林 | Large-span heavy-load prestress groove-shaped laminated plate for civil defense basement ceiling plate |
| CN202176129U (en) * | 2011-04-26 | 2012-03-28 | 柳忠林 | Large span and load prestress groove-shaped laminated board serving as basement top board |
| CN102619362A (en) * | 2011-01-28 | 2012-08-01 | 柳忠林 | Large-span and large-load pre-stress groove-shaped composite slab serving as top plate of basement |
-
2011
- 2011-04-26 CN CN2011101156742A patent/CN102758450A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2878563Y (en) * | 2006-02-24 | 2007-03-14 | 北京宇星国科科技发展有限公司 | Two-way pre-stressed floor/roofing and wall body laminated hollow plate |
| US20080010943A1 (en) * | 2006-07-13 | 2008-01-17 | Marschke Carl R | Hollow Core Floor and Deck Element |
| CN102287022A (en) * | 2010-06-18 | 2011-12-21 | 柳忠林 | Large-span heavy-load prestress groove-shaped laminated plate for civil defense basement ceiling plate |
| CN102619362A (en) * | 2011-01-28 | 2012-08-01 | 柳忠林 | Large-span and large-load pre-stress groove-shaped composite slab serving as top plate of basement |
| CN202176129U (en) * | 2011-04-26 | 2012-03-28 | 柳忠林 | Large span and load prestress groove-shaped laminated board serving as basement top board |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322163A (en) * | 2010-06-18 | 2012-01-18 | 柳忠林 | Large-span large-load prestressed grooved laminated slab used as basement roof |
| CN102322163B (en) * | 2010-06-18 | 2014-11-26 | 柳忠林 | Large-span large-load prestressed grooved laminated slab used as basement roof |
| CN110159272A (en) * | 2019-05-22 | 2019-08-23 | 河南省交通规划设计研究院股份有限公司 | The construction method of large span city tunnel with box top board structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121031 |
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| WD01 | Invention patent application deemed withdrawn after publication |