CN103334525A - One-way prestressed laminated slab structure and construction method thereof - Google Patents
One-way prestressed laminated slab structure and construction method thereof Download PDFInfo
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- CN103334525A CN103334525A CN2013102386191A CN201310238619A CN103334525A CN 103334525 A CN103334525 A CN 103334525A CN 2013102386191 A CN2013102386191 A CN 2013102386191A CN 201310238619 A CN201310238619 A CN 201310238619A CN 103334525 A CN103334525 A CN 103334525A
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- superimposed sheet
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Abstract
The invention relates to the technical field of structural engineering, and in particular to a one-way prestressed laminated slab structure. According to the structure, the outer stretching of distribution reinforcements in original prestressed laminated slabs are utilized to be used as connecting reinforcements for unsupported edges of the prestressed laminated slabs, so as to realize reliable connections of the unsupported edges and vertical components, and reliable connections of unsupported edges of one-way slabs. Through the utilization of the extension of the distribution reinforcements in the slabs for the unsupported edges of the one-way prestressed laminated slabs, the problems that the connection of the unsupported edges of the one-way laminated slabs and the vertical components, and prefabricated layers between the unsupported edges of the one-way laminated slabs are connected without steel bars; the level of integrality of floor slabs are enhanced; the structural calculation and analysis are more accurate; the earthquake resistant property of a building is effectively improved; gaps of integrality of composite floor slabs and cast-in-place floor slabs are overcome; a plurality of cast-in-place floor slabs are saved.
Description
Technical field
The present invention relates to construction engineering technical field, specifically is a kind of unidirectional prestressing force superimposed sheet structure.
Background technology
Prefabricated superimposed sheet is most widely used structural element in the present industrialization of construction industry project.Prefabricated superimposed sheet divides prestressed slab and non-prestressed plate.Prestressed slab can be saved reinforcing bar, effectively reduces the crack of plate, improves the durability of building.
Because construction technology, the prestressing force superimposed sheet is one-way slabs, and the floor size mostly is two-way slab greatly.Therefore floor generally is to be combined into by one-way slabs.Because one-way slabs is divided side-strut and non-support edge, so only the reinforcing bar that is connected with other members is left in the support edge, but not side-strut does not then have the reservation connecting reinforcement.Can cause following point like this:
The first, only there is the slab thickness of half the non-support edge that is connected of floor and vertical member, and the transmission of floor horizontal force is affected.
The second, there are several pieces in the floor bottom, and the rigidity of floor is affected, and the globality of floor weakens, and the computation model that adopts with structural analysis has error.
Summary of the invention
The present invention utilizes the distribution bar in the former precast plate overhanging as connecting reinforcement in the non-support edge of prestressing force superimposed sheet, realized non-support edge and vertical member reliable be connected and the non-support edge of one-way slabs between reliable connection.
Concrete technical scheme is: a kind of unidirectional prestressing force superimposed sheet structure, described unidirectional prestressing force superimposed sheet divides side-strut and non-support edge, the reinforcing bar that is connected with other members is left in described support edge, and described non-side-strut utilizes the distribution bar in the former precast plate overhanging as connecting reinforcement.
As the further preferred scheme of the present invention, the length that described distribution bar stretches out the non-supporting side plate of described unidirectional prestressing force superimposed sheet side outward is 300mm.
The method of using described a kind of unidirectional prestressing force superimposed sheet structure to construct comprises following step:
The first step, the distribution bar with plate when producing the prestressing force superimposed sheet stretch out plate side 300mm, and the external part of described distribution bar is bent into has the angle of inclination;
Second step, behind prestressing force superimposed sheet hoisted in position, the distribution bar cross-lapping that is in tilted layout is stretched out in two non-support edges of adjacent layout superimposed sheet arranges;
The 3rd the step, the distribution bar cross-lapping good after, the reinforcing bar of colligation in-situ layer;
The 4th goes on foot, builds the concrete of superimposed sheet in-situ layer.
Beneficial effect: utilize distribution bar in the plate to stretch out in the non-support edge of unidirectional precast prestressed superimposed sheet and solved the non-support edge of unidirectional superimposed sheet and vertical member connectivity problem, and the problem that the preformed layer no-reinforcing-bar connects between the non-support edge of unidirectional superimposed sheet, strengthened the horizontal globality of floor, make the structural calculation analysis more accurate, effectively improved the anti-seismic performance of building, overcome laminated floor slab and the cast-in-situ floor gap aspect globality, saved a large amount of cast-in-place templates.
Description of drawings
Fig. 1 is the non-side-strut syndeton of traditional prestressing force superimposed sheet schematic diagram;
Fig. 2 is non-support edge syndeton schematic diagram after the unidirectional prestressing force superimposed sheet of the employing the present invention structure;
Wherein, 1-prestressed concrete overlapped slab; The 2-prestressed reinforcement; The 3-distribution bar; The cast-in-place overlapping layers of 4-; 5-distribution bar edge joint position bends up; The 6-floor beam.
The specific embodiment
A kind of unidirectional prestressing force superimposed sheet structure, described unidirectional prestressing force superimposed sheet divides side-strut and non-support edge, and the reinforcing bar that is connected with other members is left in described support edge, and described non-side-strut utilizes the distribution bar in the former precast plate overhanging as connecting reinforcement.
As the further preferred scheme of the present invention, the length that described distribution bar stretches out the non-supporting side plate of described unidirectional prestressing force superimposed sheet side outward is 300mm.
The first step, the distribution bar with plate when producing the prestressing force superimposed sheet stretch out plate side 300mm, and the external part of described distribution bar is bent into has the angle of inclination;
Second step, behind prestressing force superimposed sheet hoisted in position, the distribution bar cross-lapping that is in tilted layout is stretched out in two non-support edges of adjacent layout superimposed sheet arranges;
The 3rd the step, the distribution bar cross-lapping good after, the reinforcing bar of colligation in-situ layer;
The 4th goes on foot, builds the concrete of superimposed sheet in-situ layer.
The present invention utilizes the distribution bar of unidirectional precast prestressed superimposed sheet to stretch out dowel as non-support edge between the dowel of the non-side-strut of unidirectional prestressing force superimposed sheet and vertical member and the one-way slabs.Make unidirectional superimposed sheet and structure vertical member be connected and unidirectional superimposed sheet between connection reach or near the connection effect of cast-in-place plate, the horizontal rigidity of floor is strengthened, transmit horizontal loading effectively, the distortion of collaborative vertical member, and then the anti-seismic performance of raising structure, make structural design analysis more accurate, make the maximization of economic benefit of prefabricated unidirectional prestressing force superimposed sheet.
The present invention has been used for guarantee room 6-05 low-rent housing project in mill in the Wanke of Nanjing.This project is fully-prefabricated assembled high residential building, 15 layers on the ground, and underground one deck indoor bicycle parking area that arranges, one deck is built on stilts leisure space, 45 meters of building heights, about 10,000 square meters of building area.Be first the complete prefabricated assembling high residential building in Jiangsu Province.Structural system adopts fully-prefabricated assembled framework-steel support structure system, main body frame except basement and bottom overhead layer post adopt cast-in-place, all the other structure divisions all adopt the fabricated assembly overall technology, prefabricating technique is as follows in the range of application of this engineering:
1) the main structure body vertical member adopts the precast concrete frame column, and horizontal flooring member adopts precast concrete superposed beam and precast prestressed concrete superimposed sheet, and anti-lateral elements adopts framework-steel to support;
2) the typical floor stair adopt the precast concrete gangboard, and balcony adopts the precast concrete laminated floor slab;
3) inside and outside infilled wall adopts the autoclaved lightweight concrete board material.
Claims (3)
1. unidirectional prestressing force superimposed sheet structure, described unidirectional prestressing force superimposed sheet divides side-strut and non-support edge, the reinforcing bar that is connected with other members is left in described support edge, it is characterized in that, described non-side-strut utilizes the distribution bar in the former precast plate overhanging as connecting reinforcement.
2. a kind of unidirectional prestressing force superimposed sheet structure according to claim 1 is characterized in that, the length that described distribution bar stretches out the non-supporting side plate of described unidirectional prestressing force superimposed sheet side outward is 300mm.
3. the method for using a kind of unidirectional prestressing force superimposed sheet structure according to claim 1 to construct is characterized in that, comprises following step:
The first step, the distribution bar with plate when producing the prestressing force superimposed sheet stretch out plate side 300mm, and the external part of described distribution bar is bent into has the angle of inclination;
Second step, behind prestressing force superimposed sheet hoisted in position, the distribution bar cross-lapping that is in tilted layout is stretched out in two non-support edges of adjacent layout superimposed sheet arranges;
The 3rd the step, the distribution bar cross-lapping good after, the reinforcing bar of colligation in-situ layer;
The 4th goes on foot, builds the concrete of superimposed sheet in-situ layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013102386191A CN103334525A (en) | 2013-06-17 | 2013-06-17 | One-way prestressed laminated slab structure and construction method thereof |
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| CN2013102386191A CN103334525A (en) | 2013-06-17 | 2013-06-17 | One-way prestressed laminated slab structure and construction method thereof |
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| CN103334525A true CN103334525A (en) | 2013-10-02 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452690A (en) * | 2014-12-05 | 2015-03-25 | 长江勘测规划设计研究有限责任公司 | Concrete roughing pier flexible apron structure and construction method |
| CN104727475A (en) * | 2015-03-09 | 2015-06-24 | 沈阳建筑大学 | Modified concrete superposition board floor structure with shear keys and connection method |
| 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 |
| CN107165319A (en) * | 2017-05-23 | 2017-09-15 | 广西硕普科技有限公司 | A kind of precast assemble floor construction method |
| CN112681592A (en) * | 2020-12-15 | 2021-04-20 | 河北工业大学 | Prefabricated slab and beam connecting structure based on reinforcement connection and construction method thereof |
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| US4205029A (en) * | 1974-02-06 | 1980-05-27 | Forrest Esli J | Pre-stressed concrete construction |
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| CN101245642A (en) * | 2008-03-21 | 2008-08-20 | 天津大学 | Strip shaped partitioned underplate concrete bidirectional laminated slab |
| CN201495664U (en) * | 2009-08-07 | 2010-06-02 | 潘树宾 | Novel hollow floor slab with precast prestress |
| CN102003002A (en) * | 2006-12-08 | 2011-04-06 | 邱则有 | Laminated slab |
| CN102383512A (en) * | 2011-08-17 | 2012-03-21 | 郭正兴 | Prefabricated prestressed plate with reinforced truss flange plate and production method thereof |
| CN102587555A (en) * | 2012-03-09 | 2012-07-18 | 黑龙江宇辉新型建筑材料有限公司 | Laminated slab adopting reinforcement 180 DEG bent anchor and spiral reinforcement connection within span and method |
| CN102900191A (en) * | 2012-09-17 | 2013-01-30 | 杨众 | Lap joint bar type prestressed two-way laminated plate and construction method |
| CN102995825A (en) * | 2012-12-18 | 2013-03-27 | 湖北弘毅钢结构工程有限公司 | Spherical honeycomb-hole-type rib frame prestressed reinforced concrete superimposed sheet |
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- 2013-06-17 CN CN2013102386191A patent/CN103334525A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4205029A (en) * | 1974-02-06 | 1980-05-27 | Forrest Esli J | Pre-stressed concrete construction |
| CN1442588A (en) * | 2003-03-31 | 2003-09-17 | 单国民 | Superimposed storey surface plate technique capable of heat insulating and sound insulating and construction method |
| CN102003002A (en) * | 2006-12-08 | 2011-04-06 | 邱则有 | Laminated slab |
| CN101245642A (en) * | 2008-03-21 | 2008-08-20 | 天津大学 | Strip shaped partitioned underplate concrete bidirectional laminated slab |
| CN201495664U (en) * | 2009-08-07 | 2010-06-02 | 潘树宾 | Novel hollow floor slab with precast prestress |
| CN102383512A (en) * | 2011-08-17 | 2012-03-21 | 郭正兴 | Prefabricated prestressed plate with reinforced truss flange plate and production method thereof |
| CN102587555A (en) * | 2012-03-09 | 2012-07-18 | 黑龙江宇辉新型建筑材料有限公司 | Laminated slab adopting reinforcement 180 DEG bent anchor and spiral reinforcement connection within span and method |
| CN102900191A (en) * | 2012-09-17 | 2013-01-30 | 杨众 | Lap joint bar type prestressed two-way laminated plate and construction method |
| CN102995825A (en) * | 2012-12-18 | 2013-03-27 | 湖北弘毅钢结构工程有限公司 | Spherical honeycomb-hole-type rib frame prestressed reinforced concrete superimposed sheet |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452690A (en) * | 2014-12-05 | 2015-03-25 | 长江勘测规划设计研究有限责任公司 | Concrete roughing pier flexible apron structure and construction method |
| CN104727475A (en) * | 2015-03-09 | 2015-06-24 | 沈阳建筑大学 | Modified concrete superposition board floor structure with shear keys and connection method |
| 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 |
| CN107165319A (en) * | 2017-05-23 | 2017-09-15 | 广西硕普科技有限公司 | A kind of precast assemble floor construction method |
| CN112681592A (en) * | 2020-12-15 | 2021-04-20 | 河北工业大学 | Prefabricated slab and beam connecting structure based on reinforcement connection and construction method thereof |
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Application publication date: 20131002 |