CN103410265A - Jointing structure of composite floor - Google Patents
Jointing structure of composite floor Download PDFInfo
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- CN103410265A CN103410265A CN2013103406597A CN201310340659A CN103410265A CN 103410265 A CN103410265 A CN 103410265A CN 2013103406597 A CN2013103406597 A CN 2013103406597A CN 201310340659 A CN201310340659 A CN 201310340659A CN 103410265 A CN103410265 A CN 103410265A
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- floor slab
- laminated floor
- splicing
- steel mesh
- splicing seams
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Abstract
The invention discloses a jointing structure of a composite floor. The jointing structure comprises a precast concrete plate, a lower-layer steel mesh, truss steel bars, additional steel bars, an upper-layer steel mesh and cast-in-place concrete. The truss steel bars are banded on the lower-layer steel mesh poured in the precast concrete plate, the upper-layer steel mesh is erected on the top of the truss steel bars, the additional steel bars are added on the lower layer at the jointing seam of the composite floor, and the composite floor is of integrated cast-in-place concrete. By the aid of the jointing structure, rationalization of plate division and reliability of jointing structure are guaranteed, integrated performances of the structure are guaranteed, and cracks at the joint are prevented from appearing.
Description
Technical field
The present invention relates to a kind of dividing method and splicing structure of laminated floor slab, belong to prefabrication and assembly construction laminated floor slab technical field of structures in construction work.
Background technology
Along with the continuous propelling of China's industrialization of construction industry process, building trade is faced with new challenges, and the builing industry integral body of China still belongs to extensive development mode, is difficult to meet the energy-saving and emission-reduction requirement that " 12 " propose.18 large after, building energy saving industry obtains more development opportunity, " industrialization of construction industry, housing industrialization " is Building Trade in China the only way which must be passed of transition.
Other member splicing node processing difficulties of full prefabricated slab and building structure, globality weakens to some extent.Laminated floor slab belongs to the prefabricated assembly structural system, is a kind of partial precast part site concrete, combines the advantage that prefabricated assembled industrialization degree is high and full cast-in-place integral is good, can meet the requirement of standardized designs, batch production production and prefabricated construction.
When floor area was larger, factory's mould can not meet the production requirement of once-forming, had to large plate is cut apart, and after plant produced completes, carried out respectively assembled to scene.Yet irrational dividing method and splicing structure will cause the change of plate stress performance, and in splicing place, crack appears easily.
Summary of the invention
The rationalization that the present invention is cut apart in order to ensure plate and the reliability of splicing structure, guarantee the overall performance of structure, avoids the appearance of splicing place crackle, and a kind of splicing structure of laminated floor slab is provided.
The technical solution used in the present invention is: a kind of splicing structure of laminated floor slab, comprise precast concrete plank, lower floor's steel mesh reinforcement, truss bars, additional bar, top mat and cast-in-situ concrete, described truss bars colligation is on lower floor's steel mesh reinforcement, lower floor's steel mesh reinforcement is cast in precast concrete plank, described top reinforcement frame stands on the truss bars end face, the splicing seams place lower floor of this laminated floor slab adds additional bar, and described laminated floor slab is the integral cast-in-situ concrete.
As preferably, in the situation that engineering production capacity allows, described laminated floor slab splicing seams as far as possible near or be arranged on plate across negative moment area.In the time of when calculating hogging moment, should choosing all plates of the vertical direction of cutting apart direction and step into capable live load least favorable and arrange, resulting hogging moment position is for reference to carrying out the partition seam setting.
As preferably, splicing seams is passed through in the steel mesh reinforcement bending of described lower floor, leaves protective layer thickness between described bending place and splicing seams,
As preferably, described laminated floor slab splicing seams place precast concrete plate thickness can suitably reduce, and length should meet can place additional bar.
As preferably, the bending that also can not make progress of splicing seams place lower floor reinforcing bar, and block in precast floor slab, edge joint position adds additional bar.
As preferably, described laminated floor slab splicing seams place can add the upper strata additional bar.
As preferably, the splicing seams in described same straddle can be one or more, and namely integral prefabricated concrete slab can divide two or polylith to splice.
As preferably, described additional bar can be two-way setting, also the additional bar perpendicular to the splicing seams direction can only be set.
As preferably, described lower floor steel mesh reinforcement bends at the splicing seams place and the length of extending is between 200～1500mm.
Beneficial effect of the present invention:
1. prefabricated superimposed sheet is that structure is also the template of structure, has saved an on-the-spot die process, and energy-conserving and environment-protective, reduce cost at the reduction of erection time.
2. the present invention at first reasonably determines the piece split position on the basis of reliable piece structure, guarantees structure tension performance.
3. additional bar and lower floor's reinforcing bar bend and cross piece and can guarantee structural integrity, avoid crack to occur.
The accompanying drawing explanation
Fig. 1 is the pre-erection schematic diagram in laminated floor slab of the present invention;
Fig. 2 is laminated floor slab embodiment 1 sectional drawing in invention;
Fig. 3 is laminated floor slab embodiment 2 sectional drawings in invention.
The specific embodiment
The present invention will be further described below in conjunction with the drawings and specific embodiments.
In the situation that engineering production capacity allow by the laminated floor slab partition seam as far as possible near or be arranged on plate across negative moment area.Fig. 1 is the pre-erection schematic diagram in laminated floor slab, and described structure is that pre-erection is spliced.
Embodiment 1: as shown in Figure 2, laminated floor slab comprises precast concrete plank 1, lower floor's steel mesh reinforcement 2, truss bars 3, additional bar 6, top mat 5 and cast-in-situ concrete 4.Truss bars 3 colligations are in lower floor's steel mesh reinforcement 2 and be cast in precast concrete plank 1.During splicing, add 6, two precast concrete planks 1 of additional bar thickness in the scope of edge joint position additional bar 6 in seam crossing lower floor and reduce, lower floor's reinforcing bar of close piece can bend and cross seam in the place of leaving enough protective layer thickness.5 of top mats stand on truss bars 3 end faces, and edge joint position can add upper strata additional bar 6, last concreting.It should be noted that precast concrete plank 1 inboard should plucking processes to increase and cast-in-situ concrete 4 bondings.
Embodiment 2: as shown in Figure 3, two precast concrete planks 1 do not change precast concrete plank 1 thickness at edge joint position, not by 2 bendings of lower floor's steel mesh reinforcement, and block in precast concrete plank 1 yet, edge joint position adds additional bar 6, and all the other ways are identical with embodiment 1.
It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.In the present embodiment not clear and definite each ingredient all available prior art realized.
Claims (9)
1. the splicing structure of a laminated floor slab, it is characterized in that: comprise precast concrete plank, lower floor's steel mesh reinforcement, truss bars, additional bar, top mat and cast-in-situ concrete, described truss bars colligation is on lower floor's steel mesh reinforcement, lower floor's steel mesh reinforcement is cast in precast concrete plank, described top reinforcement frame stands on the truss bars end face, the splicing seams place lower floor of this laminated floor slab adds additional bar, and described laminated floor slab is the integral cast-in-situ concrete.
2. the splicing structure of a kind of laminated floor slab according to claim 1 is characterized in that: described laminated floor slab splicing seams as far as possible near or be arranged on plate across negative moment area.
3. the splicing structure of a kind of laminated floor slab according to claim 1 is characterized in that: the splicing seams of laminated floor slab is passed through in the steel mesh reinforcement bending of described lower floor, leaves protective layer thickness between described bending place and splicing seams.
4. the splicing structure of a kind of laminated floor slab according to claim 1, it is characterized in that: described laminated floor slab splicing seams place precast concrete plate thickness reduces, and the length that thickness reduces plate meets can place additional bar.
5. the splicing structure of a kind of laminated floor slab according to claim 1, it is characterized in that: described lower floor steel mesh reinforcement blocks in precast concrete plank, and the splicing seams place adds additional bar.
6. the splicing structure of a kind of laminated floor slab according to claim 1, is characterized in that: described laminated floor slab splicing seams place interpolation upper strata additional bar.
7. the splicing structure of a kind of laminated floor slab according to claim 1, it is characterized in that: the splicing seams in described same straddle is one or more, namely integral prefabricated concrete slab divides two or polylith to splice.
8. the splicing structure of a kind of laminated floor slab according to claim 1, it is characterized in that: described additional bar is two-way setting, or only arranges perpendicular to the splicing seams direction.
9. the splicing structure of a kind of laminated floor slab according to claim 3 is characterized in that: described lower floor steel mesh reinforcement bends at the splicing seams place and the length of extending is between 200～1500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103406597A CN103410265A (en) | 2013-08-07 | 2013-08-07 | Jointing structure of composite floor |
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| CN2013103406597A CN103410265A (en) | 2013-08-07 | 2013-08-07 | Jointing structure of composite floor |
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| CN103410265A true CN103410265A (en) | 2013-11-27 |
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| CN2013103406597A Pending CN103410265A (en) | 2013-08-07 | 2013-08-07 | Jointing structure of composite floor |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712080A (en) * | 2015-01-17 | 2015-06-17 | 安徽建筑大学 | Composite wallboard spliced by steel boards in edge joint mode |
| CN105155689A (en) * | 2015-09-17 | 2015-12-16 | 中民筑友有限公司 | Connection node of precast slabs and construction method for laminated precast slabs |
| CN105937269A (en) * | 2016-06-03 | 2016-09-14 | 长沙远大住宅工业集团股份有限公司 | Novel prefabricated building connecting joint |
| CN106522440A (en) * | 2016-11-17 | 2017-03-22 | 西咸新区矩阵实业有限公司 | Composite floor slab based on polyphenyl granule fiber concrete sandwich insulation and construction method |
| CN106639093A (en) * | 2017-01-17 | 2017-05-10 | 沈阳建筑大学 | Close splicing seam-type laminated slab |
| CN106760114A (en) * | 2017-01-18 | 2017-05-31 | 黄坤坤 | Assembled ring muscle is fastened and is anchored reinforced concrete slab attachment structure |
| CN107965081A (en) * | 2017-12-29 | 2018-04-27 | 北京城建北方建设有限责任公司 | Plastic hollow ball overlaps prefabricated board |
| CN109057119A (en) * | 2018-06-26 | 2018-12-21 | 华东建筑设计研究院有限公司 | A kind of assembly concrete laminated floor slab connection structure |
| CN109898714A (en) * | 2019-04-02 | 2019-06-18 | 上海应用技术大学 | The close spelling connection structure of fibre sheet material concrete bidirectional laminated slab and implementation method |
| CN111287373A (en) * | 2020-02-23 | 2020-06-16 | 西安理工大学 | Connecting structure and connecting method for prefabricated composite slab and steel beam |
| CN113089918A (en) * | 2021-04-16 | 2021-07-09 | 邓申付 | Construction method for mounting abutted seam filler of prefabricated composite floor slab |
| CN114457948A (en) * | 2020-11-10 | 2022-05-10 | 内蒙古中朵远大建筑工业有限公司 | Splicing seam structure of prefabricated bottom plate of bidirectional laminated slab and construction method of splicing seam structure |
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| EP0825307A1 (en) * | 1996-08-22 | 1998-02-25 | Beton Son B.V. | Concrete wing floor element |
| CN201087490Y (en) * | 2007-08-16 | 2008-07-16 | 同济大学 | Novel steel reinforced concrete superimposed sheet |
| CN203440965U (en) * | 2013-08-07 | 2014-02-19 | 南京工业大学 | Splicing structure of overlapped floor slab |
-
2013
- 2013-08-07 CN CN2013103406597A patent/CN103410265A/en active Pending
Patent Citations (3)
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| EP0825307A1 (en) * | 1996-08-22 | 1998-02-25 | Beton Son B.V. | Concrete wing floor element |
| CN201087490Y (en) * | 2007-08-16 | 2008-07-16 | 同济大学 | Novel steel reinforced concrete superimposed sheet |
| CN203440965U (en) * | 2013-08-07 | 2014-02-19 | 南京工业大学 | Splicing structure of overlapped floor slab |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712080A (en) * | 2015-01-17 | 2015-06-17 | 安徽建筑大学 | Composite wallboard spliced by steel boards in edge joint mode |
| CN105155689A (en) * | 2015-09-17 | 2015-12-16 | 中民筑友有限公司 | Connection node of precast slabs and construction method for laminated precast slabs |
| CN105937269A (en) * | 2016-06-03 | 2016-09-14 | 长沙远大住宅工业集团股份有限公司 | Novel prefabricated building connecting joint |
| CN106522440A (en) * | 2016-11-17 | 2017-03-22 | 西咸新区矩阵实业有限公司 | Composite floor slab based on polyphenyl granule fiber concrete sandwich insulation and construction method |
| CN106639093A (en) * | 2017-01-17 | 2017-05-10 | 沈阳建筑大学 | Close splicing seam-type laminated slab |
| CN106760114A (en) * | 2017-01-18 | 2017-05-31 | 黄坤坤 | Assembled ring muscle is fastened and is anchored reinforced concrete slab attachment structure |
| CN107965081A (en) * | 2017-12-29 | 2018-04-27 | 北京城建北方建设有限责任公司 | Plastic hollow ball overlaps prefabricated board |
| CN109057119A (en) * | 2018-06-26 | 2018-12-21 | 华东建筑设计研究院有限公司 | A kind of assembly concrete laminated floor slab connection structure |
| CN109898714A (en) * | 2019-04-02 | 2019-06-18 | 上海应用技术大学 | The close spelling connection structure of fibre sheet material concrete bidirectional laminated slab and implementation method |
| CN111287373A (en) * | 2020-02-23 | 2020-06-16 | 西安理工大学 | Connecting structure and connecting method for prefabricated composite slab and steel beam |
| CN114457948A (en) * | 2020-11-10 | 2022-05-10 | 内蒙古中朵远大建筑工业有限公司 | Splicing seam structure of prefabricated bottom plate of bidirectional laminated slab and construction method of splicing seam structure |
| CN113089918A (en) * | 2021-04-16 | 2021-07-09 | 邓申付 | Construction method for mounting abutted seam filler of prefabricated composite floor slab |
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Application publication date: 20131127 |