CN103216030A - Method for splicing and connecting precast reinforced concrete floor slabs within span - Google Patents
Method for splicing and connecting precast reinforced concrete floor slabs within span Download PDFInfo
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- CN103216030A CN103216030A CN201310132599XA CN201310132599A CN103216030A CN 103216030 A CN103216030 A CN 103216030A CN 201310132599X A CN201310132599X A CN 201310132599XA CN 201310132599 A CN201310132599 A CN 201310132599A CN 103216030 A CN103216030 A CN 103216030A
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Abstract
The invention relates to a method for splicing and connecting precast reinforced concrete floor slabs within a span, and belongs to the field of construction method of precast reinforced concrete overlapped floor slabs for buildings. The method comprises the following steps of: firstly, installing reserved plate bottom steel bars and plate bottom steel bars of the floor slabs in a floor slab component, of which the steel bars at the ends are reserved outside the floor slab component, and each steel bar of the reserved plate bottom steel bars of the floor slab is provided with a vertical hook; secondly, fastening and connecting the reserved plate bottom steel bars of the floor slabs, the vertical hooks and late cast concrete with plate bottom steel bars through metal binding wires, and then screwing a spiral steel wire cover at the fastening joint of the metal binding wires; thirdly, fixing the spiral steel wire cover at the fastening joint of the metal binding wires by overlapping the late cast concrete; and fourthly, repeating the above steps through longitudinal plate bottom steel bars of the floor slabs so as to realize longitudinal connection of slab components. According to the method, the overlapped precast reinforced concrete floor slabs are simple to manufacture and simple in construction technology, the quality is easily ensured, the production and transportation efficiency is improved, the building construction quality can be ensured, and the construction cost is reduced.
Description
Technical field
The invention belongs to the construction method field of prefabricated reinforced concrete floor in the building engineering, particularly relate to a kind of prefabricated reinforced concrete floor carries out whole splicing in span method.
Background technology
Using precast floor slab to build floor level is a kind of simple, quick, higher form of construction work of industrialization degree, but traditional precast floor slab mostly is the single load bearing plate, and its form of construction work inevitably produces the slit, easily cracking, cause the flooring seepage, influence the use of interior decoration and building.In recent years, development along with industrialization of construction industry and housing industrialization, cast in place and precast construction more and more is applied in the construction of housing construction, its floor adopts prefabricated reinforced concrete superimposed sheet, prefabricated reinforced concrete hollowcore slab (unidirectional pore-forming or two-way pore-forming) more, and these two kinds of floors also belong to precast concrete floor category.But, when the prefabricated reinforced concrete floor is oversize, bring many not convenient parts will for transportation and lifting, manufacture splitting to come after its segmentation with regard to needing in case of necessity, and then install.After the prefabricated reinforced concrete floor was in place, the staff came into effect the splicing connection and forms two-way slab, also had plenty of directly not implement to splice by the one-way slabs design to connect (because of seldom adopting in floor slab bottoms generation crack easily).If have the stress characteristic of two-way slab after will splicing, then must guarantee to splice the reliability of connection.Traditional method is reinforcing bar welding or a mechanical connection at the bottom of splicing place is with plate, and the connection by back pouring concrete connecting band realization prefabricated reinforced concrete floor reaches the purpose that becomes two-way slab, but this method constructional difficulties, time-consuming cost is higher.
Therefore needing badly in the middle of the prior art wants a kind of novel technical scheme to solve this problem.
Summary of the invention
Technical problem to be solved by this invention is: a kind of joining method between the prefabricated reinforced concrete floor is provided, make and do not need complicated working procedure and equipment, just can realize that the splicing between the prefabricated reinforced concrete floor connects, form the bidirectional stress floor, improve the splicing quality of connection, accelerate speed of application, reduce the link cost of reinforcing bar and then reduce the engineering construction cost.This kind method of attachment is applicable to the integral body splicing of prefabricated reinforced concrete superimposed sheet, prefabricated reinforced concrete hollowcore slab (unidirectional pore-forming and two-way pore-forming), prefabricated reinforced concrete solid floor.
A kind of prefabricated reinforced concrete floor splices the method that connects in span, it is characterized in that:
At the bottom of step 1, the precast floor slab preformed plate at the bottom of reinforcing bar and the plate reinforcement installation in floor member, to reserve in the protruding bar length range of floor member outside be 200mm～400mm to reinforcing bar at the bottom of the floor preformed plate, and the protruding bar spacing is all 100mm～200mm mutually with rebar spacing at the bottom of the floor preformed plate, and the end of reinforcing bar protruding bar is provided with vertical crotch at the bottom of the floor preformed plate, and the straight section partial-length before the described vertical crotch bending is 10 times of bar diameter at the bottom of the floor preformed plate;
Be reserved with the overlap joint jointing between step 2, per two floor members, the width of overlap joint jointing is 200mm～400mm;
Reinforcing bar is connected by metal wiring formation constraint overlap joint with reinforcing bar at the bottom of vertical crotch, the back pouring concrete band plate in floor member overlap joint jointing at the bottom of step 3, the floor preformed plate, then the spiral wire cover is screwed in metal wiring constraint overlap joint junction, and the spiral wire cover is the cold-drawn low-carbon wire of diameter 2mm～5mm;
The diameter of described spiral wire cover is 20mm～50mm, and pitch is 5mm～15mm, and the quantity of spiral wire cover is more than one or one.
Floor member is prefabricated reinforced concrete superimposed sheet, unidirectional pore-forming prefabricated reinforced concrete hollowcore slab, two-way pore-forming prefabricated reinforced concrete hollowcore slab, prefabricated reinforced concrete solid floor.The material of described metal wiring is a galvanized wire.
Described vertical crotch is that the horizontal direction bending is arranged.
By above-mentioned design scheme, the present invention can bring following beneficial effect: a kind of joining method between the prefabricated reinforced concrete floor, make and do not need complicated working procedure and equipment, just can realize that the splicing between the prefabricated reinforced concrete floor connects, form the bidirectional stress floor, improve the splicing quality of connection, accelerate speed of application, reduce the link cost of reinforcing bar and then reduce the engineering construction cost.The present invention makes the manufacturing of prefabricated reinforced concrete floor and construction technology is simple, quality is easy to guarantee, improve the efficient of production and transport, can guarantee the building construction quality and reducings the construction costs.This kind method of attachment is applicable to the integral body splicing of prefabricated reinforced concrete superimposed sheet, prefabricated reinforced concrete hollowcore slab (unidirectional pore-forming and two-way pore-forming), prefabricated reinforced concrete solid floor.
Description of drawings
The present invention is further illustrated below in conjunction with the drawings and specific embodiments:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a horizontal sectional drawing of the present invention.
Reinforcing bar at the bottom of reinforcing bar, the vertical plate of 6-floor, the vertical crotch of 7-, the superimposed band of 8-back pouring concrete at the bottom of the pouring concrete band plate behind reinforcing bar, the 5-at the bottom of reinforcing bar, 3-spiral wire cover, the 4-plate at the bottom of 1-floor member, the 2-floor preformed plate among the figure.
The specific embodiment
The present invention is the splicing link at the floor member 1 of two (measure was identical when the polylith splicing connected) pre-splicings, reinforcing bar at the bottom of the floor preformed plate 2 is extended the certain length of ejecting plate end, length range is (200～400) mm, the protruding bar spacing is identical with rebar spacing at the bottom of the plate, be rebar spacing (100～200) mm at the bottom of the desired plate of standard, and being provided with vertical crotch 7 in the end of reinforcing bar, the straight section length of crotch is 10 times of bar diameters; Vertical crotch 7 is arranged horizontally; Reinforcing bar 4 is installed in the floor member 1 at the bottom of the plate.When splicing connects floor member 1,1 ater-casting of reserving certain width of floor member in pre-splicing, the ater-casting width is (200～400) mm, the protruding bar of plate end connects in this scope inside lap, the end reinforcing bar of reinforcing bar 2 is reserved in floor member 1 outside at the bottom of the floor preformed plate, and the end reinforcing bar of reinforcing bar 2 is provided with vertical crotch 7 at the bottom of the floor preformed plate.At first by iron wire colligation fixedly reinforcing bar 2 at the bottom of the floor preformed plate, vertical reinforcing bar 5 at the bottom of crotch 7 and the pouring concrete band plate, in the bar splicing jointing, spiral wire cover 3 pre-processed, certain specification is screwed in, reinforcing bar 2 is surrounded by spiral wire cover 3 at the bottom of the floor preformed plate, and the reinforcing bar that makes overlap joint connect is formed with the connection of spiral wire cover 3 constraints behind the pouring concrete 8 of superimposed band back.The spiral wire cover steel wire that adopts is that diameter is (2～5) mm cold-drawn low-carbon wire, and the diameter of spiral wire cover is (20～50) mm, and pitch is (5～15) mm.Repeat vertical connection that above-mentioned steps realizes floor member 1 by reinforcing bar at the bottom of the vertical plate of floor 6.Method was identical when two polylith splicings connected.
Splicing method of attachment of the present invention makes that after building superimposed concrete the constrained overlap joint that is connected to become between the two boards reinforcing bar connects, and improves the overlap joint switching performance, shortens overlap joint and connects length, reduces amount of reinforcement.
Claims (5)
1. a prefabricated reinforced concrete floor splices the method that connects in span, it is characterized in that:
At the bottom of step 1, the floor preformed plate at the bottom of reinforcing bar (2) and the plate reinforcing bar (4) be installed in the floor member (1), it is 200mm～400mm that reinforcing bar at the bottom of the floor preformed plate (2) is reserved in the outside protruding bar length range of floor member (1), and the protruding bar spacing is all 100mm～200mm mutually with reinforcing bar (2) spacing at the bottom of the floor preformed plate, and the end of reinforcing bar at the bottom of the floor preformed plate (2) protruding bar is provided with vertical crotch (7), and the straight section partial-length before described vertical crotch (7) bending is 10 times of reinforcing bar (2) diameter at the bottom of the floor preformed plate;
Be reserved with the overlap joint jointing between step 2, per two floor members (1), the width of overlap joint jointing is 200mm～400mm;
Reinforcing bar (2) is connected by metal wiring formation constraint overlap joint with reinforcing bar (5) at the bottom of vertical crotch (7), the back pouring concrete band plate in floor member (1) overlap joint jointing at the bottom of step 3, the floor preformed plate, then spiral wire cover (3) is screwed in metal wiring constraint overlap joint junction, and spiral wire cover (3) is the cold-drawn low-carbon wire of diameter 2mm～5mm;
Step 4, by superimposed band back pouring concrete (8) spiral wire cover (3) fixedly is built in metal wiring constraint overlap joint junction, the width of pouring concrete (8) is 200mm～400mm behind the described superimposed band;
Step 5, repeat vertical connection that above-mentioned steps realizes floor member (1) by reinforcing bar (6) at the bottom of the vertical plate of floor.
2. a kind of prefabricated reinforced concrete floor according to claim 1 splices the method that connects in span, it is characterized in that: the diameter of described spiral wire cover (3) is 20mm～50mm, pitch is 5mm～15mm, and the quantity of spiral wire cover (3) is more than one or one.
3. a kind of prefabricated reinforced concrete floor according to claim 1 splices the method that connects in span, it is characterized in that: floor member (1) is prefabricated reinforced concrete superimposed sheet, unidirectional pore-forming prefabricated reinforced concrete hollowcore slab, two-way pore-forming prefabricated reinforced concrete hollowcore slab, prefabricated reinforced concrete solid floor.
4. a kind of prefabricated reinforced concrete floor according to claim 1 splices the method that connects in span, it is characterized in that: the material of described metal wiring is a galvanized wire.
5. a kind of prefabricated reinforced concrete floor according to claim 1 splices the method that connects in span, it is characterized in that: described vertical crotch (7) is arranged for the horizontal direction bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310132599XA CN103216030A (en) | 2013-04-17 | 2013-04-17 | Method for splicing and connecting precast reinforced concrete floor slabs within span |
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| CN201310132599XA CN103216030A (en) | 2013-04-17 | 2013-04-17 | Method for splicing and connecting precast reinforced concrete floor slabs within span |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790271A (en) * | 2014-01-26 | 2014-05-14 | 宁波大学 | Steel and bamboo composite floor and reinforced concrete beam connecting structure and processing method |
| CN103806539A (en) * | 2014-03-12 | 2014-05-21 | 初明进 | Connection method of precast reinforced concrete slabs |
| CN104712080A (en) * | 2015-01-17 | 2015-06-17 | 安徽建筑大学 | Composite wallboard spliced by steel boards in edge joint mode |
| CN105064576A (en) * | 2015-08-26 | 2015-11-18 | 北京珠穆朗玛绿色建筑科技有限公司 | Prefabricated reinforced concrete composite floor slab component and assembly type floor composed of same |
| CN106639093A (en) * | 2017-01-17 | 2017-05-10 | 沈阳建筑大学 | Close splicing seam-type laminated slab |
| CN114575510A (en) * | 2020-11-30 | 2022-06-03 | 周俏 | Prefabricated floor slab and installation method thereof |
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| JP2002188118A (en) * | 2000-12-19 | 2002-07-05 | Pc Bridge Co Ltd | Steel-concrete joining structure of corrugated steel plate web pc bridge |
| CN1544773A (en) * | 2003-11-14 | 2004-11-10 | 建研科技股份有限公司 | Secondary prestress assembly integral concrete slab and construction process |
| CN1800534A (en) * | 2005-11-24 | 2006-07-12 | 徐金声 | Combined prestressing force concrete sandwich board and its construction method |
| CN101029514A (en) * | 2002-04-30 | 2007-09-05 | 邱则有 | Three-dimensional bearing building roof of steel-reinforced concrete |
| 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 |
-
2013
- 2013-04-17 CN CN201310132599XA patent/CN103216030A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002188118A (en) * | 2000-12-19 | 2002-07-05 | Pc Bridge Co Ltd | Steel-concrete joining structure of corrugated steel plate web pc bridge |
| CN101029514A (en) * | 2002-04-30 | 2007-09-05 | 邱则有 | Three-dimensional bearing building roof of steel-reinforced concrete |
| CN1544773A (en) * | 2003-11-14 | 2004-11-10 | 建研科技股份有限公司 | Secondary prestress assembly integral concrete slab and construction process |
| CN1800534A (en) * | 2005-11-24 | 2006-07-12 | 徐金声 | Combined prestressing force concrete sandwich board and its construction method |
| 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 |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790271A (en) * | 2014-01-26 | 2014-05-14 | 宁波大学 | Steel and bamboo composite floor and reinforced concrete beam connecting structure and processing method |
| CN103790271B (en) * | 2014-01-26 | 2016-02-24 | 宁波大学 | The syndeton of steel bamboo composite floor and reinforced concrete beam and processing method |
| CN103806539A (en) * | 2014-03-12 | 2014-05-21 | 初明进 | Connection method of precast reinforced concrete slabs |
| CN103806539B (en) * | 2014-03-12 | 2015-12-30 | 初明进 | A kind of method of attachment of precast rc slab |
| CN104712080A (en) * | 2015-01-17 | 2015-06-17 | 安徽建筑大学 | Composite wallboard spliced by steel boards in edge joint mode |
| CN105064576A (en) * | 2015-08-26 | 2015-11-18 | 北京珠穆朗玛绿色建筑科技有限公司 | Prefabricated reinforced concrete composite floor slab component and assembly type floor composed of same |
| CN106639093A (en) * | 2017-01-17 | 2017-05-10 | 沈阳建筑大学 | Close splicing seam-type laminated slab |
| CN114575510A (en) * | 2020-11-30 | 2022-06-03 | 周俏 | Prefabricated floor slab and installation method thereof |
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Application publication date: 20130724 |