CN105839823B - A kind of hollow superposed floor of close rib of truss-like - Google Patents

A kind of hollow superposed floor of close rib of truss-like Download PDF

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Publication number
CN105839823B
CN105839823B CN201610171110.3A CN201610171110A CN105839823B CN 105839823 B CN105839823 B CN 105839823B CN 201610171110 A CN201610171110 A CN 201610171110A CN 105839823 B CN105839823 B CN 105839823B
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China
Prior art keywords
plate
muscle
floor
truss
precast
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CN201610171110.3A
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CN105839823A (en
Inventor
陈忠范
尹万云
刘守城
刘体峰
谢军
柳荣芳
刘琛
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China MCC17 Group Co Ltd
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China MCC17 Group Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17Floor structures partly formed in situ
    • E04B5/18Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly cast between filling members
    • E04B5/21Cross-ribbed floors
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element

Abstract

The present invention discloses a kind of hollow superposed floor of the close rib of truss-like, belongs to house all-in-one technical field.The superposed floor includes several blocks of precast floor slabs, top plate, foamed concrete block, rectangle steel bar girder, conventional beam muscle, bottom plate and pours in the piece of precast floor slab side;Plate upper surface is equipped with several rectangle steel bar girders and conventional beam muscle, rectangle steel bar girder longitudinal direction equidistant placement, conventional beam muscle transverse direction equidistant placement;Piece is located at precast floor slab adjacent side for being bi-directionally connected precast floor slab.Superposed floor of the present invention is suitable for large span industry, civilian superstructure, for bidirectional stress, reasonable stress;Rectangle steel bar girder can enhance its rigidity wherein on prefabricated board, its bearing capacity is greatly increased when increasing non-deformability of the prefabricated board in storage, transport, hoisting process, while pouring top plate and girt strip at the scene as bed die.

Description

A kind of hollow superposed floor of close rib of truss-like
Technical field:
The invention belongs to house all-in-one technical fields, are related to building prefabricated components, and in particular to a kind of close rib of truss-like Hollow superposed floor.
Background technology:
As the developing direction of Future Residential Housing, prefabricated concrete structure is to carry out the main of building industrialization energetically Trend.For floor framing as structural bearing component, main function is that the vertical load of flooring is passed to beam column, therefore in structure There is important connection, stress effect, and with larger construction volume in entirety, therefore realize the reasonable assembling of superstructure to knot Structure stress and construction have important meaning.
At present common superposed floor there are some it is universal the problem of:First is single load bearing superstructure, can not be realized larger Two-way span.Second, Prefabricated stacking floor thickness is thin, rigidity is small, and damaged, phenomenon of rupture easily occurs in way in transport, lifting, Some superposed floors is avoid this problem, the pre-buried triangular reinforced bar truss in precast floor slab, but it is as girt strip reinforcing steel bar bear Poor performance.Third, the overlapping layers poured on precast floor slab is mostly solid, from great, strongly limits span.
For this purpose, the present invention proposes a kind of hollow superposed floor of close rib of rectangle truss-like, it is firm with bidirectional stress, precast floor slab Degree is big, rectangle steel bar girder accepts the advantages that reasonable, dead weight is small, rigidity is big as girt strip reinforcing bar, solves problem above together.
Invention content:
The object of the present invention is to provide a kind of hollow superposed floor of the close rib of truss-like, with solve existing superposed floor unidirectionally by The problems such as power, span are small, rigidity is small.In addition, the rectangle steel bar girder being equipped in superposed floor of the present invention increases precast floor slab Rigidity, avoid precast floor slab transport and hoisting process damage and failure.
A kind of hollow superposed floor of the close rib of truss-like provided by the present invention includes several blocks of precast floor slabs 1, top plate 3, hair It steeps concrete block 4, rectangle steel bar girder 6, conventional beam muscle 9, bottom plate 7 and pours in the piece 5 of 1 side of precast floor slab;The bottom Plate upper surface is equipped with several rectangle steel bar girders 6 and conventional beam muscle 9, and the longitudinal equidistant placement of rectangle steel bar girder 6 is described normal Advise the lateral equidistant placement of beam muscle 9, the first girt strip 2 and the second girt strip 8 respectively by the rectangle steel bar girder 6 and conventional beam muscle 9 into Row concreting forms;The piece 5 is located at 1 adjacent side of precast floor slab for being bi-directionally connected precast floor slab 1;The overlapping The preparation process of superstructure is specific as follows:
(1) two-way concrete slab in bottom plate 7 and the connection reinforcing bar of stretching are bound, mould is put into after welding rectangle steel bar girder 6 In plate, conventional beam muscle 9 is bound, 7 concrete of bottom plate is poured, the precast floor slab 1 is made after maintenance.
(2) several blocks of precast floor slabs 1 are lifted and supports the precast floor slab at 6 both ends of rectangle steel bar girder, made Make template at piece 5, bind the connection reinforcing bar that each 1 side of precast floor slab is stretched out, the rectangle reinforcing bar purlin of welding adjacent floor deck docking Frame 6 and conventional beam muscle 9 reserve the position placement foamed concrete block 4 of the first girt strip 2, the second girt strip 8, in foamed concrete block 4 Top binds 3 two-way concrete slab of top plate, and the connection reinforcing bar of precast floor slab side is anchored into surrounding precast beam or surrounding precast beam wall, Pour piece 5,3 concrete of the first girt strip 2, the second girt strip 8 and top plate so that different precast floor slabs 1 form entirety, are overlapped into institute State the hollow superposed floor of the close rib of truss-like.
Equipped with two-way long slab muscle in the precast floor slab 1, and stretch out 1 side a distance of precast floor slab.
The lower surface of the precast floor slab 1 is smooth, and upper surface and side are crude face.
The precast floor slab 1 is placed in checkerboard.
The rectangle steel bar girder 6 and conventional beam muscle 9 stretch out a distance outside 1 side of precast floor slab.
The rectangle steel bar girder 6 forms close rib with the conventional 9 two-way equidistant placement of beam muscle.
The hollow superposed floor of the close rib of the truss-like, it is characterised in that two-way slab muscle is configured in the top plate 3.
The foamed concrete block 4 is used as the bed die of first girt strip 2, the side form of the second girt strip 8 and top plate 3, institute Foamed concrete block 4 is stated as floor thermal insulation material.
The present invention has following technical characterstic:
The hollow superposed floor construction method of the close rib of truss-like in the present invention is simple and practicable;Superstructure in the present invention it is two-way by Power, and arrange waffle beam, it can be achieved that large span in superstructure;The rectangle steel bar girder and conventional beam muscle considerably increase prefabricated building The rigidity of plate increases the safety of component in transport, lifting, and the compression as girt strip in superstructure and tension indulge muscle again after overlapping And stirrup, and vertical muscle stretches out the outer a distance of precast floor slab, forms reserved steel bar, connection and superstructure and other structures between floor Part is welded to each other, and assembled with cast-in-place concrete mode when connecting;The superstructure be hollow-core construction, hollow position filling-foam concrete Block participates in stress and as thermal insulation material, substantially reduces dead load;Superstructure bottom is smooth, can exempt finishing furred ceiling, and all Floor pipeline and drainage elbow can be embedded in superstructure in advance, increase interior net storey height and beauty;Novel superstructure is assembled flexibly, each prefabricated Floor junction template consumption is few, and precast floor slab form is few, easy for construction, economical and practical.
Description of the drawings:
Fig. 1 is the structure diagram of the hollow superposed floor of the close rib of truss-like of the present invention;
Fig. 2 is rectangle reinforcing bar truss structure schematic diagram in superposed floor of the present invention;
Fig. 3 is the overall structure diagram of monolithic precast floor slab in superposed floor of the present invention;
Connection diagrams of the Fig. 4 between superposed floor of the present invention;
Fig. 5 connection diagrams between girt strip in superposed floor of the present invention;
Fig. 6 is superposed floor of the present invention and beam/wall connection diagram;
Fig. 7 is girt strip and beam/wall connection diagram in superposed floor of the present invention;
Fig. 8 is superposed floor of the present invention and column connection diagram;
Fig. 9 is 1-1 diagrammatic cross-sections in Fig. 8.
In figure:1:Precast floor slab;2:First girt strip;3:Top plate;4 foamed concrete blocks;5:Piece;6:Rectangle reinforcing bar purlin Frame;7:Bottom plate;8:Second girt strip;9:Conventional beam muscle;10:Template;11:Rectangle additional hooping;12:Grid beam (wall);13:Bottom Board Steel Muscle;14:Roof steel bar;15:Frame column.
Specific embodiment:
The hollow superposed floor of the close rib of a kind of truss-like provided by the present invention (see Fig. 1), the superposed floor include several pieces Precast floor slab 1 (see Fig. 3) with longitudinally disposed rectangle steel bar girder 6 and the conventional beam muscle 9 laterally set, the prefabricated building of connection The piece 5 of plate and pour the first girt strip 2, the second girt strip 8 and top plate 3 in precast floor slab upper surface.
Bottom plate two-way concrete slab (the connection reinforcing bar including stretching) is bound, is put into template, ties up after welding rectangle steel bar girder 6 Conventional beam muscle 9 is pricked, 7 concrete of bottom plate is poured, precast floor slab 1 is made after maintenance.Several blocks of precast floor slabs 1 are lifted and support square 6 both ends precast floor slab of shape steel bar girder makes template at piece 5, binds the connection reinforcing bar that each 1 side of precast floor slab is stretched out, weldering The rectangle steel bar girder 6 and conventional beam muscle 9, the position for reserving the first girt strip 2 and the second girt strip 8 for connecing adjacent floor deck docking place hair Concrete block 4 is steeped, 3 two-way concrete slab of top plate is bound above foamed concrete block 4, the connection reinforcing bar of precast floor slab side is anchored into In surrounding (prefabricated) beam/wall, piece 5,3 concrete of the first girt strip 2, the second girt strip 8 and top plate are poured so that different precast floor slabs 1 composition is whole, is overlapped into hollow-ribbed floor.
Fig. 4, Fig. 5 represent girt strip in connection diagram and superposed floor of the present invention between superposed floor of the present invention respectively Between connection diagram.As shown in Figure 6,7, superstructure or steel bar girder girt strip are connected to become entirety, superstructure or reinforcing bar purlin with beam/wall Reinforcing bar anchors into the lamination portion of beam/wall, and casting concrete in frame girt strip.As shown in figure 8, superstructure precast floor slab at Column border node The reinforcing bar bending of an interior direction, the lamination portion of pillar is inserted into another direction, by prefabricated panel inner bending steel after installation is in place Muscle curved straight arranges that reinforcing bar is anchored into column in top plate, casting concrete.
One group of superstructure embodiment data is given below:
Span:10m, thickness 300mm;
Top plate:Long 4700mm, wide 2100mm, thick 60mm;
Bottom plate:Long 4700mm, wide 2100mm, thick 60mm;
Girt strip:Wide 150mm, high 300mm, spacing 750mm are two-way.
The above embodiment be it is proposed that embodiment, be not used in limitation the present invention, striking out can be made to the present invention Portion improves, the variation of size and shape, superstructure different parts size such as rectangle steel bar girder middle polyline stirrup, rectangle reinforcing bar purlin The variation etc. that muscle is changed to sleeve connection, sequence of construction is indulged in frame, belongs to the protection category of the present invention.

Claims (8)

1. a kind of hollow superposed floor of close rib of truss-like, it is characterised in that the superposed floor include several pieces of precast floor slabs (1), It top plate (3), foamed concrete block (4), rectangle steel bar girder (6), conventional beam muscle (9), bottom plate (7) and pours in precast floor slab (1) piece (5) of side;Bottom plate (7) upper surface is equipped with several rectangle steel bar girders (6) and conventional beam muscle (9), the square Shape steel bar girder (6) longitudinal direction equidistant placement, the lateral equidistant placement of routine beam muscle (9), the first girt strip (2) and the second girt strip (8) concreting is carried out by the rectangle steel bar girder (6) and conventional beam muscle (9) respectively to form;The piece (5) is positioned at institute Precast floor slab (1) adjacent side is stated for being bi-directionally connected the precast floor slab (1);The preparation process of the superposed floor is specifically such as Under:
(1) two-way concrete slab in binding bottom plate (7) and the connection reinforcing bar of stretching, mould is put into after welding rectangle steel bar girder (6) In plate, conventional beam muscle (9) is bound, bottom plate (7) concrete is poured, the precast floor slab (1) is made after maintenance;
(2) several pieces of precast floor slabs (1) are lifted and supports the precast floor slab at rectangle steel bar girder (6) both ends, system Make template at piece (5), bind the connection reinforcing bar of each precast floor slab (1) side stretching, the rectangle steel of welding adjacent floor deck docking Muscle truss (6) and conventional beam muscle (9) reserve the position placement foamed concrete block (4) of the first girt strip (2), the second girt strip (8), Binding top plate (3) two-way concrete slab, surrounding is anchored by the connection reinforcing bar of precast floor slab (1) side above foamed concrete block (4) In precast beam or surrounding precast beam wall, the piece (5), the first girt strip (2), the second girt strip (8) and top plate (3) coagulation are poured Soil so that different precast floor slab (1) compositions are whole, are overlapped into the hollow superposed floor of the close rib of the truss-like.
2. the hollow superposed floor of the close rib of truss-like according to claim 1, it is characterised in that match in the precast floor slab (1) There is two-way long slab muscle, the two-way long slab muscle stretches out precast floor slab (1) side a distance.
3. the hollow superposed floor of the close rib of truss-like according to claim 1, it is characterised in that under the precast floor slab (1) Surfacing, upper surface and side are crude face.
4. the hollow superposed floor of the close rib of truss-like according to claim 1, it is characterised in that the precast floor slab (1) is in chess Plate-like is placed.
5. the hollow superposed floor of the close rib of truss-like according to claim 1, it is characterised in that the rectangle steel bar girder (6) And conventional beam muscle (9) stretches out a distance outside precast floor slab (1) side.
6. the hollow superposed floor of the close rib of truss-like according to claim 1, it is characterised in that the rectangle steel bar girder (6) Close rib is formed with described conventional beam muscle (9) two-way equidistant placement.
7. the hollow superposed floor of the close rib of truss-like according to claim 1, it is characterised in that configuration is double in the top plate (3) To plate muscle.
8. the hollow superposed floor of the close rib of truss-like according to claim 1, it is characterised in that the foamed concrete block (4) Bed die as first girt strip (2), the side form of the second girt strip (8) and the top plate (3), the foamed concrete block (4) it is floor thermal insulation material.
CN201610171110.3A 2016-03-24 2016-03-24 A kind of hollow superposed floor of close rib of truss-like Active CN105839823B (en)

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CN106703272A (en) * 2017-02-03 2017-05-24 湖南诚友绿色建材科技有限公司 Unidirectional dense-rib sandwich-type board of prestressed light-aggregate-concrete for making overlapped dense-rib floor slabs
CN107327065A (en) * 2017-07-06 2017-11-07 中国十七冶集团有限公司 The hollow groined slab floor frame structure seat of large span assembled integral and preparation method
CN107882243B (en) * 2017-10-10 2019-07-19 中国十七冶集团有限公司 A kind of cassette ceiling and construction method of concrete-filled rectangular steel tube waffle beam structure
CN108343184A (en) * 2018-02-02 2018-07-31 广州市第二市政工程有限公司 The floor construction method that tongue and groove hollow pre-fabricated panels and well word Cast-in-situ Beam are combined
CN109707087B (en) * 2019-02-24 2021-08-03 东北石油大学 Long-span sound insulation combined plate floor system with hidden beams and construction method thereof

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Publication number Priority date Publication date Assignee Title
JP2002021240A (en) * 2000-07-12 2002-01-23 Nippon Kaiser Kk Precast concrete plate, slab and structure
CN1900449A (en) * 2005-07-20 2007-01-24 吴方伯 Steel bar concrete dense rib floor
KR20100013548A (en) * 2008-07-31 2010-02-10 삼성중공업 주식회사 Joint of half pc slab
CN102251673A (en) * 2010-06-13 2011-11-23 吴方伯 Construction method for reinforced concrete hollow floor
CN202559569U (en) * 2012-05-09 2012-11-28 宝钢建筑系统集成有限公司 Assembled monolithic self-insulation hidden dense rib light superposed floor slab
CN202969669U (en) * 2012-12-24 2013-06-05 刘青云 Cast-in-place hollow-ribbed floor
CN204311630U (en) * 2014-08-07 2015-05-06 深圳市现代营造科技有限公司 A kind of prefabricated loss of weight concrete dense-rib superimposed sheet and close rib building roof thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002021240A (en) * 2000-07-12 2002-01-23 Nippon Kaiser Kk Precast concrete plate, slab and structure
CN1900449A (en) * 2005-07-20 2007-01-24 吴方伯 Steel bar concrete dense rib floor
KR20100013548A (en) * 2008-07-31 2010-02-10 삼성중공업 주식회사 Joint of half pc slab
CN102251673A (en) * 2010-06-13 2011-11-23 吴方伯 Construction method for reinforced concrete hollow floor
CN202559569U (en) * 2012-05-09 2012-11-28 宝钢建筑系统集成有限公司 Assembled monolithic self-insulation hidden dense rib light superposed floor slab
CN202969669U (en) * 2012-12-24 2013-06-05 刘青云 Cast-in-place hollow-ribbed floor
CN204311630U (en) * 2014-08-07 2015-05-06 深圳市现代营造科技有限公司 A kind of prefabricated loss of weight concrete dense-rib superimposed sheet and close rib building roof thereof

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