CN103470040A - Method of splicing laminated floor slab and beam - Google Patents
Method of splicing laminated floor slab and beam Download PDFInfo
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- CN103470040A CN103470040A CN2013104218044A CN201310421804A CN103470040A CN 103470040 A CN103470040 A CN 103470040A CN 2013104218044 A CN2013104218044 A CN 2013104218044A CN 201310421804 A CN201310421804 A CN 201310421804A CN 103470040 A CN103470040 A CN 103470040A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000010276 construction Methods 0.000 claims abstract description 9
- 230000002787 reinforcement Effects 0.000 claims description 10
- 210000003205 muscle Anatomy 0.000 claims description 6
- 238000009415 formwork Methods 0.000 claims description 5
- 238000011065 in-situ storage Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract 5
- 238000005266 casting Methods 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
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Abstract
The invention discloses a method of splicing a laminated floor slab and a beam. The method comprises the following steps of providing a precast slab, a beam, a lower longitudinal bar of the beam, a middle longitudinal bar of the beam, an upper longitudinal bar of the beam, a reinforcing steel bar at the slab bottom, an additional reinforcing steel bar at the slab top, a truss bar and a hooping; pouring the beam at two times, wherein the first pouring height is a difference between the beam depth and the thickness of the slab, and only binding the lower longitudinal bar of the beam, the middle longitudinal bar of the beam and the hooping in the beam during the pouring; when cast-in-place concrete reaches a certain intensity, hoisting the precast slab, placing slab edges at the side of the beam, and extending the reinforcing steel bar at the slab bottom into the beam; lastly, adding the upper longitudinal bar of the beam and the additional reinforcing steel bar at the slab top, and casting the concrete in place again so as to complete construction of the beam and the slab. According to the method described by the invention, the reinforcing steel bar at the edge of the slab can be accurately anchored in the beam so as to meet requirements of current specifications of nation, and the method has the advantages of simple construction and reasonable stress.
Description
Technical field
The present invention relates to the joining method of a kind of prefabricated assembled concrete laminated floor slab and beam, belong to prefabricated costruction construction field in construction work.
Background technology
In order to advance the development of industrialization of construction industry, country advocates prefabrication energetically in recent years.Laminated floor slab, as the important structure member in this structural system, has very high industrialization degree.Laminated floor slab is formed by stacking by pre-erection and cast-in-place part, and it possesses the characteristics of the high and full cast-in-place structural good integrity of prefabricated assembled industrialization degree simultaneously.Wherein pre-erection, in plant produced, has fixing production model.During site operation, precast plate is not only the part of structure, serves as template simultaneously, saves a die process.Finally cast-in-situ concrete on precast plate, due to the precast plate rough surface, and have truss bars to stretch out pre-erection, can fully guarantee the bonding between superposed surfaces.The most significant advantage of laminated floor slab is that this structure construction operation is simple, quick, preferentially the reduction of erection time.These outstanding advantages are widely used laminated floor slab, and laminated floor slab can also be independent of the prefabricated costruction system in addition, as a kind of component application in steel work and full cast-in-place concrete structure.
Some difficulties also occur in the application process of laminated floor slab, especially be apparent in the splicing Nodes of floor and beam.Beam steel bar colligation completes and engineering pre-erection production while carrying out on-site hoisting after completing, and the reinforcing bar that the precast plate edges of boards stretch out can not arrive in beam and carry out anchoring through the longitudinal reinforcement of beam.Existing solution is the upwards bending of reinforcing bar that edges of boards are stretched out, and from the longitudinal reinforcement of beam, crosses with the stirrup of beam and is positioned at sustained height.This way can not meet the structure requirement in national regulation, and Nodes is stressed unreasonable.More rational way should be that the reinforcing bar that the pre-erection edge is stretched out is positioned at the below of beam upper longitudinal bar and meets the anchoring requirement.
Summary of the invention
The invention provides the joining method of a kind of laminated floor slab and beam, its objective is and under the prerequisite of the plant produced flow process that does not change precast plate, make the reinforcing bar that panel edges is stretched out can meet the anchoring requirement.
The technical solution used in the present invention is: the joining method of a kind of laminated floor slab and beam comprises the following steps:
1) beam is built at twice, build first is highly the difference of deck-molding and thickness of slab: when this is built, Liang Zhongxian only carries out the colligation of the vertical muscle in beam bottom, the vertical muscle in beam middle part and stirrup, then beam formwork, the difference that the template height is deck-molding and thickness of slab, last concreting;
2) produce in factory precast plate, this step can be carried out in advance, and precast plate is comprised of reinforcement, truss bars and concrete, and reinforcement stretches out the precast plate part should meet the required anchorage length of intensity;
Carry out the precast plate lifting when 3) cast-in-situ concrete reaches some strength in step 1), prefabricated edges of boards are held on the beam limit, the reinforcement at precast plate edge stretches in beam, and be placed in below the beam upper longitudinal bar, then add the plate top additional bar of beam upper longitudinal bar and precast plate, again, by beam and precast plate cast-in-situ concrete simultaneously, complete the construction of beam and precast plate.
Beneficial effect of the present invention: the present invention can correctly anchor in beam the panel edges reinforcing bar, meets the requirement of current national codes, and construction is simple, reasonable stress.
The accompanying drawing explanation
Fig. 1 is that the invention central sill splices profile with precast plate on one side.
Fig. 2 is invention central sill both sides and precast plate splicing profile.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
As shown in Figures 1 and 2, precast plate is prefabricated in the factory, and reinforcement 6, truss bars 8 and concrete, consists of, and wherein truss bars 8 can be controlled slab thickness.Precast plate can serve as template at the scene, saves a die process.
At first the interior reinforcing bar of colligation beam 2 during site operation, the vertical muscle 3 in a colligation beam bottom, the vertical muscle 4 in beam middle part and stirrup 9 while noting building first.During the beam formwork, the formwork height must not be higher than deck-molding and thickness of slab difference, and formwork completes the after-pouring concrete, completes beam 2 and builds first part 10.Hoisting prefabricated plate 1 when concrete reaches some strength in beam 2, precast plate 1 has been prefabricated in the factory this moment.During lifting, precast plate 1 edge reinforcement 6 is placed in the beam upper longitudinal bar below 5, and meets necessary anchorage length, has lifted rear interpolation beam upper longitudinal bar 5 and plate top additional bar 7 thereof, concreting for the second time, and the plate top is highly arrived in concreting.
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 (1)
1. the joining method of a laminated floor slab and beam is characterized in that: comprise the following steps:
1) beam is built at twice, build first is highly the difference of deck-molding and thickness of slab: when this is built, Liang Zhongxian only carries out the colligation of the vertical muscle in beam bottom, the vertical muscle in beam middle part and stirrup, then beam formwork, the difference that the template height is deck-molding and thickness of slab, last concreting;
2) produce in factory precast plate, this step can be carried out in advance, and precast plate is comprised of reinforcement, truss bars and concrete, and reinforcement stretches out the precast plate part should meet the required anchorage length of intensity;
Carry out the precast plate lifting when 3) cast-in-situ concrete reaches some strength in step 1), prefabricated edges of boards are held on the beam limit, the reinforcement at precast plate edge stretches in beam, and be placed in below the beam upper longitudinal bar, then add the plate top additional bar of beam upper longitudinal bar and precast plate, again, by beam and precast plate cast-in-situ concrete simultaneously, complete the construction of beam and precast plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104218044A CN103470040A (en) | 2013-09-16 | 2013-09-16 | Method of splicing laminated floor slab and beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013104218044A CN103470040A (en) | 2013-09-16 | 2013-09-16 | Method of splicing laminated floor slab and beam |
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| CN103470040A true CN103470040A (en) | 2013-12-25 |
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| CN2013104218044A Pending CN103470040A (en) | 2013-09-16 | 2013-09-16 | Method of splicing laminated floor slab and beam |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074359A (en) * | 2014-07-17 | 2014-10-01 | 长沙远大住宅工业集团有限公司 | Construction method for connection joint of prefabricated sandwich side fascia |
| CN107119839A (en) * | 2017-06-27 | 2017-09-01 | 唐元元 | Assembled Building panel and preparation method thereof |
| CN107605086A (en) * | 2017-11-10 | 2018-01-19 | 远大住宅工业（天津）有限公司 | Special-shaped complete prefabricated inclined roof and its with the attachment structure of Cast-in-situ Beam, construction method |
| CN107859178A (en) * | 2017-11-10 | 2018-03-30 | 湘潭远大住宅工业有限公司 | The attachment structure and its construction method of complete prefabricated inclined roof and Cast-in-situ Beam |
| CN107975185A (en) * | 2017-12-01 | 2018-05-01 | 沈阳建筑大学 | Concealed beam formula connects full precast concrete harden structure, making and assembly method |
| CN109826350A (en) * | 2019-02-28 | 2019-05-31 | 山东城开远大装配式建筑有限公司 | A kind of connection method of laminated floor slab |
| CN110318490A (en) * | 2019-07-18 | 2019-10-11 | 杭州建工集团有限责任公司 | A kind of construction method that superimposed sheet is connect with secondary beam and node connecting structure |
| CN110512783A (en) * | 2019-03-19 | 2019-11-29 | 浙江绿城建筑设计有限公司 | The building cover structure being made of cast-in-place concrete Vierendeel girder and reinforced concrete slab |
| CN110644681A (en) * | 2019-09-25 | 2020-01-03 | 上海建工四建集团有限公司 | Stirrup positioning device and method |
| CN111058562A (en) * | 2019-12-31 | 2020-04-24 | 浙江工业大学 | Laminated floor slab structure and construction process thereof |
| CN115288446A (en) * | 2022-07-08 | 2022-11-04 | 中国建筑第二工程局有限公司 | Construction method for prefabricated half cage beam steel bars of floor of assembly structure |
| CN115478646A (en) * | 2022-10-12 | 2022-12-16 | 中建八局第二建设有限公司 | Construction method and structure of precast concrete composite floor slab |
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| JP2001040763A (en) * | 1999-07-30 | 2001-02-13 | Shimizu Corp | Joint structure for precast concrete member |
| CN101581113A (en) * | 2008-05-14 | 2009-11-18 | 万科企业股份有限公司 | Connecting structure for precast concrete board and beam, construction method and building |
| CN101586366A (en) * | 2008-05-21 | 2009-11-25 | 万科企业股份有限公司 | Connecting structure and construction method of precast concrete plates and beams, and building comprising same |
| CN102912900A (en) * | 2012-11-14 | 2013-02-06 | 安徽华力建设集团有限公司 | Prefabricated assembled superposed plate type concrete shear wall and construction method thereof |
| CN103061518A (en) * | 2013-01-22 | 2013-04-24 | 中国十七冶集团有限公司 | Method for constructing composite floor slabs of multi-storey residential building |
-
2013
- 2013-09-16 CN CN2013104218044A patent/CN103470040A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001040763A (en) * | 1999-07-30 | 2001-02-13 | Shimizu Corp | Joint structure for precast concrete member |
| CN101581113A (en) * | 2008-05-14 | 2009-11-18 | 万科企业股份有限公司 | Connecting structure for precast concrete board and beam, construction method and building |
| CN101586366A (en) * | 2008-05-21 | 2009-11-25 | 万科企业股份有限公司 | Connecting structure and construction method of precast concrete plates and beams, and building comprising same |
| CN102912900A (en) * | 2012-11-14 | 2013-02-06 | 安徽华力建设集团有限公司 | Prefabricated assembled superposed plate type concrete shear wall and construction method thereof |
| CN103061518A (en) * | 2013-01-22 | 2013-04-24 | 中国十七冶集团有限公司 | Method for constructing composite floor slabs of multi-storey residential building |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074359A (en) * | 2014-07-17 | 2014-10-01 | 长沙远大住宅工业集团有限公司 | Construction method for connection joint of prefabricated sandwich side fascia |
| CN107119839A (en) * | 2017-06-27 | 2017-09-01 | 唐元元 | Assembled Building panel and preparation method thereof |
| CN107605086A (en) * | 2017-11-10 | 2018-01-19 | 远大住宅工业（天津）有限公司 | Special-shaped complete prefabricated inclined roof and its with the attachment structure of Cast-in-situ Beam, construction method |
| CN107859178A (en) * | 2017-11-10 | 2018-03-30 | 湘潭远大住宅工业有限公司 | The attachment structure and its construction method of complete prefabricated inclined roof and Cast-in-situ Beam |
| CN107605086B (en) * | 2017-11-10 | 2023-11-28 | 远大住宅工业（天津）有限公司 | Special-shaped full-prefabricated sloping roof, connection structure of special-shaped full-prefabricated sloping roof and cast-in-situ beam and construction method of special-shaped full-prefabricated sloping roof |
| CN107975185A (en) * | 2017-12-01 | 2018-05-01 | 沈阳建筑大学 | Concealed beam formula connects full precast concrete harden structure, making and assembly method |
| CN109826350A (en) * | 2019-02-28 | 2019-05-31 | 山东城开远大装配式建筑有限公司 | A kind of connection method of laminated floor slab |
| CN110512783B (en) * | 2019-03-19 | 2020-09-08 | 浙江绿城建筑设计有限公司 | Floor structure composed of cast-in-place concrete frame beam and concrete composite floor slab |
| CN110512783A (en) * | 2019-03-19 | 2019-11-29 | 浙江绿城建筑设计有限公司 | The building cover structure being made of cast-in-place concrete Vierendeel girder and reinforced concrete slab |
| CN110318490A (en) * | 2019-07-18 | 2019-10-11 | 杭州建工集团有限责任公司 | A kind of construction method that superimposed sheet is connect with secondary beam and node connecting structure |
| CN110644681A (en) * | 2019-09-25 | 2020-01-03 | 上海建工四建集团有限公司 | Stirrup positioning device and method |
| CN111058562A (en) * | 2019-12-31 | 2020-04-24 | 浙江工业大学 | Laminated floor slab structure and construction process thereof |
| CN115288446A (en) * | 2022-07-08 | 2022-11-04 | 中国建筑第二工程局有限公司 | Construction method for prefabricated half cage beam steel bars of floor of assembly structure |
| CN115288446B (en) * | 2022-07-08 | 2024-01-26 | 中国建筑第二工程局有限公司 | Construction method for prefabricated half-cage beam steel bars of building surface with assembly structure |
| CN115478646A (en) * | 2022-10-12 | 2022-12-16 | 中建八局第二建设有限公司 | Construction method and structure of precast concrete composite floor slab |
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Application publication date: 20131225 |