CN109826350A - A kind of connection method of laminated floor slab - Google Patents
A kind of connection method of laminated floor slab Download PDFInfo
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- CN109826350A CN109826350A CN201910149294.7A CN201910149294A CN109826350A CN 109826350 A CN109826350 A CN 109826350A CN 201910149294 A CN201910149294 A CN 201910149294A CN 109826350 A CN109826350 A CN 109826350A
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- floor slab
- laminated floor
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- connection method
- additional bar
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Abstract
The invention discloses a kind of connection method of laminated floor slab, include the following steps: to smear flexible break resistant joint filling mortar on internal partition wall；Laminated floor slab is placed on internal partition wall, and the bottom of laminated floor slab is close to internal partition wall；The present invention is convenient for the connection of laminated floor slab, fits up convenient for finish coat.
Description
Technical field
The invention belongs to laminated floor slab interconnection technique fields, and in particular to a kind of connection method of laminated floor slab.
Background technique
Laminated floor slab is mainly used for small high-rise, cast in place and precast construction on the middle and senior level and the large span standard width of a room in an old-style house.Laminated floor slab is
Assembled integral floor made of being closed as prefabricated board and cast-in-situ steel reinforced concrete stacking；Prefabricated board is one of whole building floor
The template die of component part and erecting yard construction surface layer, can lay horizontal plants pipeline in cast-in-place overlapping layers, laminated floor slab is whole
Body is good, rigidity is big, can save template, and the upper and lower surface of plate is smooth, fits up convenient for finish coat, laminated floor slab is to make at present
With most wide precast floor slab.
Laminated floor slab is divided into according to space using function: floor, balcony slab, air-conditioning plate, precast caisson, platen of having a rest etc..
Laminated floor slab is divided into according to production technology: truss floor and without truss floor (presstressed reinforcing steel).
Laminated floor slab is divided into according to structure stress form: one-way slabs and two-way slab.
The prefabricated plate thickness of superimposed sheet is not less than 60mm, and rear pouring concrete overlapping layers thickness is no less than 60mm；With stacking
Plywood floor thickness is preferably unified, and span is generally 4~6m, with relatively inexpensive within 5m.
According to the concrete form of the standard width of a room in an old-style house, trolley production capacity and construction condition, superimposed sheet is designed to different shapes
Shape and size, overlapping balcony slab is preferably truss bars concrete folding plate；Air-conditioning plate is preferably full precast reinforced concrete plate；Overlapping
Prestressed concrete earth process prefabricated board superimposed sheet can be used in floor: superimposed sheet of the span greater than 3m preferably uses truss bars concrete
Superimposed sheet；Superimposed sheet of the span greater than 6m preferably uses prestressed concrete prefabricated board；Plate thickness preferably uses mixed greater than 180mm superimposed sheet
Solidifying soil cored slab.
Summary of the invention
The purpose of the present invention is to provide a kind of connection methods of laminated floor slab, mentioned above in the background art to solve
Problem.
To achieve the above object, the invention provides the following technical scheme: a kind of connection method of laminated floor slab, including it is as follows
Step:
Step 1: flexible break resistant joint filling mortar is smeared on internal partition wall；
Step 2: laminated floor slab is placed on internal partition wall, and the bottom of laminated floor slab is close to internal partition wall.
As a preferred technical solution of the invention, the laminated floor slab of the separate type piece is in edge joint position and plate
The side position Wei Chujin configures additional bar.
As a preferred technical solution of the invention, the seam crossing is arranged close to prefabricated plate top surface perpendicular to plate stitch
Additional bar, the anchorage length that additional bar protrudes into pouring concrete overlapping layers behind two sides is no less than 15d, and d is additional bar
Diameter.
As a preferred technical solution of the invention, the additional bar area of section is not less than the party in prefabricated board
To the area of reinforcement, bar diameter is not more than 250mm not less than 6mm, spacing.
As a preferred technical solution of the invention, the unidirectional superimposed sheet plate side position Wei Chujin is close to prefabricated
Additional bar is set in the rear pouring concrete overlapping layers of plate top surface, and additional bar area of section is not less than equidirectional in prefabricated board
Distribution bar area, spacing are not more than 600mm, and anchorage length is not less than 15d in the rear pouring concrete overlapping layers of plate, in support
Interior anchorage length is not less than 15d and extends through support center, and wherein d is additional bar diameter.
As a preferred technical solution of the invention, the compressor wire on the laminated floor slab selects 4.8mm spiral shell
Revolve rib steel wire, intensity 1570MPa.
Compared with prior art, it the beneficial effects of the present invention are: being convenient for the connection of laminated floor slab, is fitted up convenient for finish coat.
Detailed description of the invention
Fig. 1 is truss floor construction schematic diagram of the invention；
Fig. 2 is pre-stress floor structural schematic diagram of the invention；
Fig. 3 is partition wall and the horizontal piecing connection structure schematic diagram of floor of the invention；
Fig. 4 is unidirectional superimposed sheet structural schematic diagram of the invention；
Fig. 5 is the bidirectional laminated slab structural schematic diagram of the invention with seam；
Fig. 6 is seamless bidirectional laminated slab structural schematic diagram of the invention；
In figure: 1, laminated floor slab；2, spread out frame reinforcing bar；3, steel bar stress；4, supporting steel bar；5, compressor wire；6, flexible anti-
Split joint filling mortar；7, internal partition wall；8, prefabricated board；9, beam or wall；10, plate side separate type seam；11, plate side monoblock type seam.
Specific embodiment
A kind of connection method of laminated floor slab, includes the following steps:
Step 1: flexible break resistant joint filling mortar 6 is smeared on internal partition wall 7；
Step 2: laminated floor slab 1 is placed on internal partition wall 7, and the bottom of laminated floor slab 1 is close to internal partition wall 7.
The design procedure of laminated floor slab 1: construction drawing recognition；Determine prefabricated range；Floor plan is drawn；Technique detail drawing is set
Meter；The design of water power set aside pre-embedded；Interference checking and water power hole are reinforced；Drawing check and correction audit；The check and correction audit of BOM inventory；Drawing
It issues；Production, lifting；Problem feedback；
Design generic principles: prefabricated components strength grade of concrete is not less than C30, and prestressed concrete prefabricated components mix
Soil strength grade not preferably less than C40 is coagulated, and is not less than C30；The prefabricated thickness of superimposed sheet is not less than 60mm, and rear pouring concrete is folded
It closes thickness degree and is not less than 60mm；The lapping direction of floor, one-way slabs are overlapped along support short side, and two-way slab four sides overlaps, and overlap model
Enclose 10-15mm；Spatially different codings is formulated the laminated floor slab of different parts using function；Floor shape short side dimension is not
Greater than 3200mm, determined by factory's trolley size；Factory often uses trolley size: 9*3.5m, 12*3.5m；Floor joint types: point
From formula seam (one-way slabs), monoblock type seam (two-way slab), monoblock type seam post-cast strip width is not less than 200mm.
Additional steel need to be configured in edge joint position and the plate side position Wei Chujin for the laminated floor slab 1 using separate type piece
Muscle, and should meet claimed below:
Seam crossing is arranged the additional bar perpendicular to plate stitch close to 8 top surface of prefabricated board, additional bar protrude into behind two sides pour it is mixed
The anchorage length of solidifying soil overlapping layers is no less than 15d (d is additional bar diameter)；
Additional bar area of section is not less than 6mm, spacing not less than the direction area of reinforcement in prefabricated board 8, bar diameter
It is not preferably greater than 250mm；
The unidirectional superimposed sheet plate side position Wei Chujin is preferably arranged in the rear pouring concrete overlapping layers close to 8 top surface of prefabricated board attached
Adding reinforcing bar, additional bar area of section is not more than 600mm not less than the equidirectional distribution bar area in prefabricated board 8, spacing,
Anchorage length is not less than 15d in the rear pouring concrete overlapping layers of plate, and not less than 15d, (d is additional bar to anchorage length in support
Diameter) and extend through support center；
Bottom muscle extension elongation: >=5d and excessively support center；
Rough surface is arranged in prefabricated board 8 and cast-in-place faying face, and rough surface bumps depth is not less than 4mm, and area is not less than combination
The 80% of face；
Trimming bar is reinforced: principle guarantee floor strength, super for the floor dimension of opening using welded net production
Reinforcing rib is set when crossing 150*150mm or unilateral length greater than 150mm, using double-deck 10 reinforcing ribs, and reinforcing rib need to only exceed
Hole edge Lae；Muscle does not cut at the bottom of when being less than 300mm for the floor dimension of opening for pricking mesh sheet production using hand around hole
It is disconnected, it can not do and reinforce；Structural working drawing should arrange reinforcing rib according to structural working drawing when requiring, and add when hole is close to edges of boards
Strengthening tendons should stretch out edges of boards；
In Figure of description 1, the top of laminated floor slab 1 is provided with multiple frame reinforcing bars 2 that spread out being spaced apart, laminated floor slab 1
Inside be fixed with multiple steel bar stresses 3, and steel bar stress 3 penetrates through laminated floor slab 1, and truss floor is that truss is placed on coagulation
The precast floor slab formed in native, precast floor slab steel bar arrangement must meet design requirement, guarantee as far as possible not with adjacent superimposed sheet
Under the premise of stretching out muscle interference, two sides steel bar arrangement preferably keeps spacing consistent, to meet the recycling of die abnormal-shaped part, and can
Improve production efficiency；Truss role: being not involved in structure stress, arranges along plate length direction, enhances floor stiffness by itself；It connects new and old
Concrete enhances binding force；Structure stress is participated in, is arranged along main stress direction, floor stiffness by itself is enhanced；Truss depth: reason
By the height H=plate thickness-bottom bottom tendon protective layer thickness -2* muscle diameter -2* gluten diameter-gluten.
In Figure of description 2, the top of laminated floor slab 1 is fixed with multiple supporting steel bars 4, and the inside of laminated floor slab 1 is fixed with
Multiple steel bar stresses 3 and compressor wire 5, and steel bar stress 3 and compressor wire 5 penetrate through laminated floor slab 1；Without truss floor
It is that the precast floor slab that precast concrete does not place truss and presstressed reinforcing steel is used to be formed is placed in using the high tensile reinforcement of minor diameter
Board bottom guarantees floor stiffness by itself, floor is avoided to crack during production and transport；Deformed bar design rule: it selects
4.8mm helix rib steel wire, intensity 1570MPa arrange along floor length direction, the bottom muscle in spacing herewith direction；8 bottom of prefabricated board
When the spacing of principal rod is 150mm, the arrangement spacing of cracking resistance muscle is 450mm；When the spacing of 8 bottom principal rod of prefabricated board is 200mm,
The arrangement spacing of cracking resistance muscle is also 600mm；The protective layer thickness of cracking resistance muscle is 17.5mm；Stretching force is controlled in 9KN or so；Cracking resistance
Muscle is not turned off at hole (except the sealing of tie lines box, drainpipe overflows in addition to ring), and the cracking resistance muscle in hole is cut after construction；Prefabricated board
8 plate face pluckings, plucking depth are not less than 4mm；Shear reinforcement (supporting steel bar 4) layout rules: one-way slabs, when span is greater than 4m, away from
Support 1/4 is across arrangement supporting steel bar 4 in range；Two-way slab, it is short across in range away from four side supports 1/4 when short span is greater than 4m；It is outstanding
Superimposed sheet is chosen, the top Reinforcement of cantilevered plate is in the rear pouring concrete anchoring range of adjacent superimposed sheet；4 cloth of supporting steel bar
It sets spacing and is not preferably greater than 400mm, bar diameter is no less than 6mm.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of connection method of laminated floor slab, which comprises the steps of:
Step 1: flexible break resistant joint filling mortar (6) are smeared on internal partition wall (7)；
Step 2: laminated floor slab (1) is placed on internal partition wall (7), and the bottom of laminated floor slab (1) is close to internal partition wall (7).
2. a kind of connection method of laminated floor slab according to claim 1, it is characterised in that: the separate type piece is folded
It closes floor (1) and configures additional bar in edge joint position and the plate side position Wei Chujin.
3. a kind of connection method of laminated floor slab according to claim 2, it is characterised in that: the seam crossing is close to prefabricated
The additional bar perpendicular to plate stitch is arranged in plate (8) top surface, and additional bar protrudes into the anchorage length of pouring concrete overlapping layers behind two sides
No less than 15d, d are additional bar diameter.
4. a kind of connection method of laminated floor slab according to claim 2, it is characterised in that: additional bar section face
Product is not more than 250mm not less than 6mm, spacing not less than the direction area of reinforcement in prefabricated board (8), bar diameter.
5. a kind of connection method of laminated floor slab according to claim 2, it is characterised in that: the unidirectional superimposed sheet plate side
Do not go out muscle position and additional bar, additional bar section face are set in the rear pouring concrete overlapping layers close to prefabricated board (8) top surface
Product is not more than 600mm not less than the equidirectional distribution bar area in prefabricated board (8), spacing, overlaps in the rear pouring concrete of plate
Anchorage length is not less than 15d in layer, and anchorage length not less than 15d and extends through support center in support, and wherein d is additional bar
Diameter.
6. a kind of connection method of laminated floor slab according to claim 1, it is characterised in that: on the laminated floor slab (1)
Compressor wire (5) select 4.8mm helix rib steel wire, intensity 1570MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910149294.7A CN109826350A (en) | 2019-02-28 | 2019-02-28 | A kind of connection method of laminated floor slab |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910149294.7A CN109826350A (en) | 2019-02-28 | 2019-02-28 | A kind of connection method of laminated floor slab |
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| Publication Number | Publication Date |
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| CN109826350A true CN109826350A (en) | 2019-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910149294.7A Pending CN109826350A (en) | 2019-02-28 | 2019-02-28 | A kind of connection method of laminated floor slab |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113468631A (en) * | 2021-05-21 | 2021-10-01 | 南昌大学 | Automatic arrangement method for cast-in-place steel bars in one-way laminated slab close-splicing type joint connection |
Citations (5)
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|---|---|---|---|---|
| EP0432177A1 (en) * | 1988-07-29 | 1991-06-19 | Suomen Liittopalkki Oy | A system comprising a connector beam and a connector plate. |
| CN103470040A (en) * | 2013-09-16 | 2013-12-25 | 南京工业大学 | Method of splicing laminated floor slab and beam |
| CN103982041A (en) * | 2014-05-07 | 2014-08-13 | 杜景云 | Method for constructing reinforced-concrete prefabricated element fabricated building with frame structure system |
| CN205242775U (en) * | 2015-11-24 | 2016-05-18 | 绍兴宝业西伟德混凝土预制件有限公司 | Take two -way connected node of piece coincide floor |
| CN109183983A (en) * | 2018-10-08 | 2019-01-11 | 湖南晨熙绿色建筑产业有限公司 | A kind of assembly method of upper and lower interior wall and floor |
-
2019
- 2019-02-28 CN CN201910149294.7A patent/CN109826350A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0432177A1 (en) * | 1988-07-29 | 1991-06-19 | Suomen Liittopalkki Oy | A system comprising a connector beam and a connector plate. |
| CN103470040A (en) * | 2013-09-16 | 2013-12-25 | 南京工业大学 | Method of splicing laminated floor slab and beam |
| CN103982041A (en) * | 2014-05-07 | 2014-08-13 | 杜景云 | Method for constructing reinforced-concrete prefabricated element fabricated building with frame structure system |
| CN205242775U (en) * | 2015-11-24 | 2016-05-18 | 绍兴宝业西伟德混凝土预制件有限公司 | Take two -way connected node of piece coincide floor |
| CN109183983A (en) * | 2018-10-08 | 2019-01-11 | 湖南晨熙绿色建筑产业有限公司 | A kind of assembly method of upper and lower interior wall and floor |
Non-Patent Citations (2)
| Title |
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| 卢家森: "《装配整体式混凝土框架实用设计方法》", 31 July 2016, 湖南大学出版社 * |
| 阮景等: "《房屋建筑学》", 29 February 2016, 北京理工大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113468631A (en) * | 2021-05-21 | 2021-10-01 | 南昌大学 | Automatic arrangement method for cast-in-place steel bars in one-way laminated slab close-splicing type joint connection |
| CN113468631B (en) * | 2021-05-21 | 2022-03-18 | 江西中煤建设集团有限公司 | Automatic arrangement method for cast-in-place steel bars in one-way laminated slab close-splicing type joint connection |
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Application publication date: 20190531 |
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