CN205421652U - Hollow floor - Google Patents
Hollow floor Download PDFInfo
- Publication number
- CN205421652U CN205421652U CN201620200619.1U CN201620200619U CN205421652U CN 205421652 U CN205421652 U CN 205421652U CN 201620200619 U CN201620200619 U CN 201620200619U CN 205421652 U CN205421652 U CN 205421652U
- Authority
- CN
- China
- Prior art keywords
- upper plate
- core
- edge
- cassette ceiling
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a hollow floor, including upper plate, hypoplastron and a plurality of mandrel, the intralamellar part has reinforcing bar net piece down, the mandrel is located between hypoplastron and the upper plate, is equipped with the girt strip between the adjacent mandrel, girt strip and upper plate integrated into one piece, the lower terminal surface of mandrel lies in same horizontal plane, from middle part to the edge of upper plate the up end of mandrel belongs to highly reducing gradually of horizontal plane, hollow floor's NULL has been practiced thrift.
Description
Technical field
This utility model relates to building floor structure, is specially a kind of cassette ceiling.
Background technology
Cast-in-place concrete hollow floor slab be exactly place embedded type core by certain rule after, in floor, form the floor of cavity through poured in place concrete.Core is and is embedded in cast-in-place concrete hollow floor slab in order to form cavity and the object not taken out.Working as concrete formation, after reaching design strength, the effect of core the most just completes.Cast-in-place concrete hollow floor slab is owing to having inserted core, thus alleviates deadweight, reduces concrete amount, increases span, reduces floor height, and sound-insulating and heat-insulating effect is also fine, reduces the comprehensive cost of building.
Cassette ceiling in use, is primarily subjected to shearing, and more toward the edge of cassette ceiling, the shearing that cassette ceiling is born is the biggest.Reality is when making cassette ceiling, because the core used is all a kind of specification, so that the concrete amount of the concrete amount of the little position of the stress position big with stress is identical, stress should be fewer compared with the concrete amount of big position than stress compared with little position in theory, thus cause the waste of concrete material, too increase the deadweight of cassette ceiling simultaneously.
Utility model content
This utility model is intended to provide a kind of cassette ceiling, to solve the core of existing cassette ceiling a kind of specification of use, causes the problem that concrete is wasted.
A kind of cassette ceiling in this programme, including upper plate, lower plate and some cores, described lower intralaminar part has reinforced mesh, described core is between lower plate and upper plate, it is provided with girt strip between adjacent core, described girt strip is one-body molded with upper plate, and the lower surface of described core is positioned in same level, and the height of place, the upper surface horizontal plane from the middle part of upper plate to core described in edge is gradually lowered.
Cassette ceiling in use time, what lower plate was primarily subjected to is tension, and what upper plate was primarily subjected to is compressive stress.By arranging reinforced mesh in lower plate, increase the tension that lower plate can bear.By from the middle part of upper plate to its edge, the core that rational height is gradually reduced, make upper plate from middle part toward edge, thickness of slab is gradually increased, so that upper plate forms one is similar to the curved surface that raises up.By arranging girt strip, upper plate is made to transmit the force to lower plate.In use, four limits of cassette ceiling can be fixedly connected cassette ceiling with frame column, so that four limits of cassette ceiling are fixed, cassette ceiling can produce film effect in use, and the bearing capacity of lower plate increases.Upper plate is owing to defining a curved surface being similar to raise up, so that the pressure bearing capacity of upper plate increases.Meanwhile, the shearing suffered by cassette ceiling is that middle part is less, and more toward edge, shearing is the biggest, and bigger flush shear force can be born in the position being especially connected with frame column.By the core being gradually reduced to edge's rational height from the middle part of cassette ceiling, the core that the position rational height that makes cassette ceiling stress bigger is less, in the position that the position rational height that cassette ceiling stress is less is bigger, so that the concrete amount of cassette ceiling is the most reasonable, and then saved the consumption of concrete, also mitigate the deadweight of cassette ceiling simultaneously.Owing to the thickness of the edge of upper plate is relatively big, so that the shear resistance that cassette ceiling is in the junction with frame column gets a promotion.
Compared with prior art, the advantage of this programme is: by the core being gradually reduced toward edge's rational height from the middle part of upper plate, the stress making cored slab is more reasonable, meanwhile, has saved concrete material.
Further, the edge of described upper plate is provided with bending resistance reinforcing bar.Upper plate with the junction of frame column owing to being fixing connection so that upper plate changes in the stress of edge, generation hogging moment, make edge's under tension of upper plate.By arranging bending resistance reinforcing bar on top edge, increase the resistance to tension at upper board edge.
Further, described core is the casing that top board, side plate and base plate surround, and the shape of described top board becomes the curved surface raised up.Make upper plate pouring when, be also the curved surface raised up after upper plate and the position molding of the top plate contact of core, so that the anti-pressure ability of upper plate local increases, and then promote the bearing capacity of upper plate.
Further, the edge of the top board of described core is provided with inner corner trim.Making girt strip when molding, a wider edge of a wing is formed at the top of girt strip.Girt strip stressing conditions in use is upper portion pressurized, by forming a wider edge of a wing on the top of girt strip, increases the resisting cross-sections on girt strip top, thus promotes the anti-pressure ability on girt strip top.
Further, the edge of the base plate of described core is provided with lower inner corner trim.Increase the width of girt strip bottom, it is simple to more reinforcing bar can be set in bottom, increases the resistance to tension of girt strip bottom.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model a kind of cassette ceiling embodiment.
Detailed description of the invention
Below by detailed description of the invention, this utility model is described in further detail:
Reference in Figure of description includes: upper plate 1, core 2, girt strip 3, lower plate 4.
A kind of cassette ceiling as shown in Figure 1, including lower plate 4 and upper plate 1, lower plate 4 is internal has reinforced mesh.Being provided with some cores 2 between lower plate 4 and upper plate 1, the rectangular array distribution of core 2 is also spaced setting.The lower surface of core 2 is positioned in same level, and the height of core 2 is gradually reduced toward edge from the middle part of upper plate 1.Core 2 is the casing surrounded by top board, side plate and base plate.The shape of the top board of core 2 becomes the curved surface raised up.Edge's setting of falling inner corner trim of the top board of core 2, edge's also setting of falling inner corner trim of the base plate of core 2.Upper plate 1 is formed by concrete cast-in-situ, and part concrete falls into the gap between core 2 and forms girt strip 3.The inside of girt strip 3 is provided with horizontal and vertical reinforcing bar.The inside of upper plate 1 also is provided with the reinforcing bar of bi-directional distributed.Edge at upper plate 1 is provided with bending resistance reinforcing bar, and bending resistance reinforcing bar is near the upper surface of upper plate 1.
The manufacture method of cassette ceiling, first supports with scaffold building, lays wood in the upper end of the support set up stupefied, then completely spreads template on wood is stupefied；After treating that template lays, set the reinforced mesh of plate 4 on template upper berth；The reinforced mesh laid is laid core 2, and reinforcing bar is set between core 2；The last reinforcing bar laying upper plate 1 on the core 2 laid, bending resistance reinforcing bar is laid by the edge at upper plate 1；Finally carrying out concreting, make the full gap between core 2 and template of Concrete Filled, concrete fills up the gap between adjacent core 2 simultaneously, and is covered by all cores 2.After the intensity of concrete reaches requirement, removing and support and template, cassette ceiling is the formation of.
Claims (5)
1. a cassette ceiling, including upper plate, lower plate and some cores, described lower intralaminar part has reinforced mesh, described core is between lower plate and upper plate, being provided with girt strip between adjacent core, described girt strip is one-body molded with upper plate, it is characterised in that, the lower surface of described core is positioned in same level, and the height of place, the upper surface horizontal plane from the middle part of upper plate to core described in edge is gradually lowered.
A kind of cassette ceiling the most according to claim 1, it is characterised in that: the edge of described upper plate is provided with bending resistance reinforcing bar.
A kind of cassette ceiling the most according to claim 2, it is characterised in that: described core is the casing that top board, side plate and base plate surround, and the shape of described top board becomes the curved surface raised up.
A kind of cassette ceiling the most according to claim 3, it is characterised in that: the edge of the top board of described core is provided with inner corner trim.
A kind of cassette ceiling the most according to claim 4, it is characterised in that: the edge of the base plate of described core is provided with lower inner corner trim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620200619.1U CN205421652U (en) | 2016-03-16 | 2016-03-16 | Hollow floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620200619.1U CN205421652U (en) | 2016-03-16 | 2016-03-16 | Hollow floor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205421652U true CN205421652U (en) | 2016-08-03 |
Family
ID=56545967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620200619.1U Expired - Fee Related CN205421652U (en) | 2016-03-16 | 2016-03-16 | Hollow floor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205421652U (en) |
-
2016
- 2016-03-16 CN CN201620200619.1U patent/CN205421652U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20170316 |