CN100451263C - Bidirectional steel-stacked plate concrete composite building roof - Google Patents

Bidirectional steel-stacked plate concrete composite building roof Download PDF

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Publication number
CN100451263C
CN100451263C CNB2007101779713A CN200710177971A CN100451263C CN 100451263 C CN100451263 C CN 100451263C CN B2007101779713 A CNB2007101779713 A CN B2007101779713A CN 200710177971 A CN200710177971 A CN 200710177971A CN 100451263 C CN100451263 C CN 100451263C
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CN
China
Prior art keywords
concrete
steel
steel beam
plate
girder steel
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Application number
CNB2007101779713A
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Chinese (zh)
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CN101173542A (en
Inventor
聂建国
樊健生
温凌燕
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清华大学
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Application filed by 清华大学 filed Critical 清华大学
Priority to CNB2007101779713A priority Critical patent/CN100451263C/en
Publication of CN101173542A publication Critical patent/CN101173542A/en
Application granted granted Critical
Publication of CN100451263C publication Critical patent/CN100451263C/en

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Abstract

The invention relates to a dual-way steel-laminated slab concrete composite floor, belonging to a new large span floor structure, comprising a cross steel beam, a prefabricated slab and a later pouring concrete layer, wherein the cross steel beam is an I shaped cross section or box section steel beam; the prefabricated slab, a common reinforced concrete slab or a prestressed concrete slab, is held on the cross steel beam and covered on the grids between the steel beams; the later pouring concrete layer is concrete poured on the prefabricated slab and the steel beam. The invention has the advantages of low structure height, high bearing capacity, stiffness, bilateral support effect, saved forming procedure and formwork, reduced the wet work amounts of site concrete, favorableness to the three-dimensional construction, and shortened construction period.

Description

Bidirectional steel-stacked plate concrete composite building roof

Technical field

The present invention relates to a kind of novel building cover structure (15m≤span L≤70m), belong to the Structural Engineering field of striding greatly.

Background technology

In building structure, when the superstructure span is big, can adopt two-way concrete slab concrete girt strip type superstructure or steel concrete intersecting parallels superstructure.But, when the planar dimension of building and post apart from enlarging markedly or indoor when not allowing to establish the vertical support member, these traditional concrete floor structural forms can't satisfy the requirement of large-span structure development on supporting capacity, anti-seismic performance, speed of application.The steel work superstructure has the intensity height, from the characteristics of heavy and light, if but the girder steel in the superstructure is pressed bidirectional stress when design, the performance boost that its two-way power transmission brought is not enough to surpass or offsets the girder steel node increases the cost rising that is caused, thereby does not possess the economic technology advantage.

Summary of the invention

The object of the present invention is to provide that a kind of bearing capacity is big, easy construction, two-way supporting steel-concrete composite floor system structure that structure height is low.

Technical scheme of the present invention is as follows:

A kind of bidirectional steel-stacked plate concrete composite building roof is characterized in that: be made up of intersection girder steel 1, precast plate 3 and last layer concrete 4, and by shear connector 2 described each several part be combined into integral body; Described intersection girder steel 1 adopts i section steel beam or box steel beam, is positioned at the lower floor of superstructure; Described precast plate 3 is supported on the top flange of intersection girder steel and covers the district's lattice that intersect between girder steel; Described last layer concrete 4 is for building in the concrete of precast plate and girder steel top.

Precast plate of the present invention is ordinary reinforced concrete plate or prestressed concrete plate.In described last layer concrete, dispose reinforcing bar.

The present invention has the following advantages with respect to prior art and the high-lighting effect:

Compare with steel concrete girt strip type superstructure, steel concrete intersecting parallels superstructure, bidirectional steel-stacked plate concrete composite building roof can be saved a die process and a template, reduces on-site concrete wet trade amount, is convenient to three-dimensional construction, shortens the construction period.Compare with traditional unidirectional supporting steel-concrete composite beam superstructure, can reduce structure height greatly, improve structural bearing capacity and rigidity.

Description of drawings

Fig. 1 is the schematic perspective view of intersection girder steel among the present invention.

Fig. 2 installs schematic perspective view behind the precast plate for construction stage of the present invention.

Fig. 3 builds the concrete schematic perspective view of last layer in the embodiment of the present invention.

Among the figure: 1-intersects girder steel; The 2-shear connector; The 3-precast plate; 4-last layer concrete.

The specific embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.

Bidirectional steel-stacked plate concrete composite building roof provided by the invention is made up of intersection girder steel 1, precast plate 3 and last layer concrete 4 three parts, and by shear connector 2 each several part is combined into whole co-operation.The girder steel 1 that intersects can be i section steel beam or box steel beam, is positioned at the lower floor of superstructure; The connected mode of intersection girder steel can adopt bolt to connect or welding manner, and girder steel quantity, sectional dimension and girder steel spacing are determined according to instructions for use.Shear connector 2 can be forms such as peg, channel-section steel, is with girder steel and the concrete slab cooperative parts that link together.Precast plate 3 upper surfaces and side should be matsurface, with the combination degree of raising with last layer concrete 4; Precast plate 3 is supported on the top flange of intersection girder steel and covers the district's lattice that intersect between girder steel, and lap length is not less than 5cm; Precast plate 3 can be ordinary reinforced concrete plate or prestressed concrete slabs; The thickness of precast plate 3 should determine according to the spacing of girder steel, when thin or precast plate span satisfies deformation requirements in the work progress more greatly and not when precast plate 3, should 3 times temporary support be set at precast plate in the construction.Last layer concrete 4 is for building in the concrete of precast plate and girder steel top; Build last layer concrete 4 and should guarantee the concrete density in notch place.For prevent to shrink, thermal cracking and from the stressed angle of floor, last layer concrete 4 planted agents dispose the reinforcing bar of some.

Working procedure of the present invention is:

(1) makes girder steel and welding shear connector 2 in factory process;

(2) the on-the-spot intersection girder steel 1 of installing;

(3) after intersection girder steel 1 installation in position, precast plate 3 is installed on girder steel;

(4) install after the precast plate 3 colligation last layer reinforcing bar and build last layer concrete 4.

Claims (3)

1. a bidirectional steel-stacked plate concrete composite building roof is characterized in that: be made up of intersection girder steel (1), precast plate (3) and last layer concrete (4), and by shear connector (2) described each several part be combined into integral body; Described intersection girder steel (1) adopts i section steel beam or box steel beam, is positioned at the lower floor of superstructure; Described precast plate (3) is supported on the top flange of intersection girder steel and covers the district's lattice that intersect between girder steel; Described last layer concrete (4) is for building in the concrete of precast plate and girder steel top.
2. bidirectional steel-stacked plate concrete composite building roof according to claim 1 is characterized in that: described precast plate (3) is ordinary reinforced concrete plate or prestressed concrete plate.
3. bidirectional steel-stacked plate concrete composite building roof according to claim 1 is characterized in that: dispose reinforcing bar in described last layer concrete (4).
CNB2007101779713A 2007-11-23 2007-11-23 Bidirectional steel-stacked plate concrete composite building roof CN100451263C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2007101779713A CN100451263C (en) 2007-11-23 2007-11-23 Bidirectional steel-stacked plate concrete composite building roof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2007101779713A CN100451263C (en) 2007-11-23 2007-11-23 Bidirectional steel-stacked plate concrete composite building roof

Publications (2)

Publication Number Publication Date
CN101173542A CN101173542A (en) 2008-05-07
CN100451263C true CN100451263C (en) 2009-01-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2007101779713A CN100451263C (en) 2007-11-23 2007-11-23 Bidirectional steel-stacked plate concrete composite building roof

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CN (1) CN100451263C (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101906840A (en) * 2010-07-09 2010-12-08 浙江大学 Cast-in-place reinforced concrete embedded composite multi-ribbed energy-saving floor structure system
CN102261145A (en) * 2011-04-22 2011-11-30 清华大学 Integrally two-way and locally one-way steel-concrete slab composite floor system and construction method thereof
CN102926462B (en) * 2012-09-13 2015-01-21 上海江欢成建筑设计有限公司 Building connecting bridge
CN103790237B (en) * 2014-02-17 2016-07-06 沈阳建筑大学 A kind of connecting elements of precast concrete laminated floor slab and H profile steel beam
CN104389374B (en) * 2014-11-02 2016-07-06 中国矿业大学(北京) Combination multi-ribbed plate and preparation method thereof, assembled plate-column structure
CN104878863B (en) * 2015-04-30 2017-05-03 宁波大学 Construction method of light composite floor
CN105525686A (en) * 2015-11-26 2016-04-27 沈阳建筑大学 Structure for connecting prefabricated concrete composite floor slab with H-shaped steel beam through bolts
CN105887649A (en) * 2016-04-21 2016-08-24 浙江交通职业技术学院 Steel-concrete local prefabricated simply supported superposed beam structure adopting layering stud connector and manufacturing technique thereof
CN105908881B (en) * 2016-06-02 2019-02-12 中国矿业大学 A kind of two-way beam of falling T composite floor
CN108385886B (en) * 2018-03-22 2019-03-22 李世骏 Grid beams floor construction and construction method
CN109881834B (en) * 2019-03-18 2020-03-17 李世骏 Floor slab structure with grid beams and composite plates and construction method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6101779A (en) * 1998-05-20 2000-08-15 Space Master Building Systems, Llc Construction unit for a modular building
CN1554839A (en) * 2003-12-28 2004-12-15 昆明理工大学 Steel-steel concrete fully prefabricated assembling structure
CN1587575A (en) * 2004-06-30 2005-03-02 清华大学 Steel-concrete folding plate combined beam

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6101779A (en) * 1998-05-20 2000-08-15 Space Master Building Systems, Llc Construction unit for a modular building
CN1554839A (en) * 2003-12-28 2004-12-15 昆明理工大学 Steel-steel concrete fully prefabricated assembling structure
CN1587575A (en) * 2004-06-30 2005-03-02 清华大学 Steel-concrete folding plate combined beam

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