CN103790237B - A kind of connecting elements of precast concrete laminated floor slab and H profile steel beam - Google Patents

A kind of connecting elements of precast concrete laminated floor slab and H profile steel beam Download PDF

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Publication number
CN103790237B
CN103790237B CN201410053878.1A CN201410053878A CN103790237B CN 103790237 B CN103790237 B CN 103790237B CN 201410053878 A CN201410053878 A CN 201410053878A CN 103790237 B CN103790237 B CN 103790237B
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China
Prior art keywords
corner
curved muscle
profile steel
floor slab
laminated floor
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CN201410053878.1A
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Chinese (zh)
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CN103790237A (en
Inventor
李帼昌
邱增美
张海霞
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沈阳建筑大学
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Priority to CN201410053878.1A priority Critical patent/CN103790237B/en
Publication of CN103790237A publication Critical patent/CN103790237A/en
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Publication of CN103790237B publication Critical patent/CN103790237B/en

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Abstract

The present invention relates to the connecting elements of a kind of precast concrete laminated floor slab and H profile steel beam, it is characterized in that including, H profile steel beam (1), prefabricated plate (2), concrete layer (3), the curved muscle in corner (4), compare with the connection of traditional laminated floor slab Yu girder steel simultaneously, overcome the drawback of curved muscle single load bearing, simultaneously compared with Welded-Stud Conectors, number is greatly reduced, and brings great convenience for construction.

Description

A kind of connecting elements of precast concrete laminated floor slab and H profile steel beam

Technical field

The invention belongs to building structural element field, it is particularly applicable to the connection of the laminated floor slab of multi and tall steel building house and girder steel.

Background technology

Assembling type steel structure house is promoting the fast development of building industry, is the building structure pattern of a kind of environmental protection.Because it has the advantage such as easy accessibility, resource reproducible utilization, therefore by reputation green building, it is the developing direction of CHINESE INDUSTRIES house.

Precast concrete laminated floor slab is the floor form that assembling type steel structure house is the most frequently used, it is good that it has globality, crack resistance, shock resistance and heat insulation property, easy construction, reduction of erection time, minimizing formwork, saving material, energy-conserving and environment-protective, it is simple to the advantages such as industrialization production.

Shear connector is precast concrete laminated floor slab and the tie of girder steel connection, the overall performance that precast concrete laminated floor slab is connected with girder steel plays conclusive effect, it is to ensure that the important means of its overall common stress and compatible deformation, it is primarily subjected to the longitudinal shear between girder steel and concrete, plays opposing lift displacement effect between the two simultaneously.

The shear connector studied at present, sliding size in rigidity according to connector and interface, two classes can be divided into: connector rigidity is big and make interface sliding little for rigidity shear connector, connector rigidity little and cause interface sliding big for flexible shear connector.The most frequently used type of attachment has peg, shaped steel and curved muscle.

Peg shear connector, manufacturing process is simple, it is simple to Site Welding, is most widely used at present.Its stress performance is: when load action, peg moves together with girder steel, external load passes to the root of peg by peg weld seam, and produce bigger deformation, whole peg is subjected to the synergy of moment of flexure, shearing and pulling force, due to this effect so that it is maximum that peg root bears pressure, along being highly gradually reduced, the pressure reversal born when close to the top of peg.Therefore the failure mode often occurred is, the peg front concrete local compression of root is broken or cleaves, thus causing integrally-built destruction.

Shaped steel shear connector shear resistance is strong, and the performance of redistribution shearing is good, and can play opposing lifts role simultaneously on the edge of a wing.But Site Welding workload is big, construction speed is slow, and steel using amount is bigger.

Curved muscle shear connector, uses relatively early, makes and construction is all simpler.But owing to resisting shearing only with the tensile strength of curved muscle, therefore or shearing direction indefinite in shearing direction is it may happen that when changing, action effect is poor.

Therefore, in conjunction with existing type of attachment, the exploitation of new connection has been carried out for its drawback.

Summary of the invention

It is an object of the invention to promote in China for steel house, the connection of a kind of laminated floor slab being conducive to Steel Structure Industry and girder steel is provided, agent structure deformation can either be well adapted to, it is ensured that attachment security is reliable, again can saving steel, it is easy to constructing and realizing industrialization produces.

For achieving the above object, the technical scheme is that the connecting elements of a kind of precast concrete laminated floor slab and H profile steel beam, it is characterized in that including, H profile steel beam (1), prefabricated plate (2), concrete layer (3), the curved muscle in corner (4)

Described prefabricated plate (2) is positioned at the top flange place of H profile steel beam (1), this prefabricated plate (2) has a preformed hole (2-1), described H profile steel beam (1) top flange place is welded with the curved muscle in corner (4), the curved muscle in this corner (4) is arranged in preformed hole (2-1) traverse concrete layer (3).

Described concrete layer (3) is arranged in prefabricated plate (2) top and preformed hole (2-1).

The curved muscle in described corner (4) has multiple.

The thickness of described prefabricated plate (2) is 50-80mm.

The diameter d of the curved muscle in described corner (4) is 12-16mm, and the transfer angle of the curved muscle in this corner (4) is 45 °.

The curved muscle in described corner (4) has tiltedly straight length l1With horizontal length l2, wherein l1>=12.5d, l2≥5d。

Described corner curved muscle (4) bearing capacity is 530KN-1100KN.

Beneficial effect:

The connecting structure of a kind of precast concrete laminated floor slab and H profile steel beam in the present invention, it has the prominent advantages that, the curved muscle in corner belongs to flexible shear connector, can prevent junction from brittle break occur, this special type of attachment Special composition system, making its each point uniform force, the overall performance of structure is improved, it is easy to accomplish industrialized production, assembled in situ is easy, construction accurate positioning, thus being greatly saved the set-up time, improves engineering efficiency.

Comparing with the connection of traditional laminated floor slab Yu girder steel simultaneously, overcome the drawback of curved muscle single load bearing, simultaneously compared with Welded-Stud Conectors, number is greatly reduced, and brings great convenience for construction.Utilizing the curved muscle in corner to be welded to connect, the anti-shearing and anti-ability of starting is improved, simple structure, saves steel, it is easy to accomplish standardization, modularization.

Accompanying drawing explanation

Fig. 1 is the main TV structure schematic diagram that the present invention connects;

Fig. 2 is the decomposition texture schematic diagram that the present invention connects.

Detailed description of the invention

Below in conjunction with specific embodiment, the present invention is expanded on further.

As described in Figure, the connecting elements of a kind of precast concrete laminated floor slab and H profile steel beam, it is characterised in that include, H profile steel beam (1), prefabricated plate (2), concrete layer (3), the curved muscle in corner (4),

Described prefabricated plate (2) is positioned at the top flange place of H profile steel beam (1), this prefabricated plate (2) has a preformed hole (2-1), described H profile steel beam (1) top flange place is welded with the curved muscle in corner (4), the curved muscle in this corner (4) is arranged in preformed hole (2-1) traverse concrete layer (3).

Described concrete layer (3) is arranged in prefabricated plate (2) top and preformed hole (2-1).

The curved muscle in described corner (4) has multiple.The thickness of described prefabricated plate (2) is 50-80mm.

The diameter d of the curved muscle in described corner (4) is 12-16mm, and the transfer angle of the curved muscle in this corner (4) is 45 °.

The curved muscle in described corner (4) has tiltedly straight length l1With horizontal length l2, wherein l1>=12.5d, l2≥5d。

Described corner curved muscle (4) bearing capacity is 530KN-1100KN.

At the scene in work progress, being first overlapped on by prefabricated plate on H profile steel beam, then by the bottom welding of curved for the corner muscle top flange place at H profile steel beam, finally cast concrete forms concrete layer.The curved muscle in described corner is equidistantly spaced from according to specific requirement.

Should be understood that these embodiments are merely to illustrate the present invention rather than restriction the scope of the present invention.In addition, it is to be understood that after having read the content that the present invention lectures, the present invention can be made various changes or modifications by those skilled in the art, and these equivalent form of values fall within the application appended claims limited range equally.

Claims (1)

1. the connecting elements of a precast concrete laminated floor slab and H profile steel beam, it is characterised in that include H profile steel beam (1), prefabricated plate (2), concrete layer (3), the curved muscle in corner (4),
Described prefabricated plate (2) is positioned at the top flange place of H profile steel beam (1), this prefabricated plate (2) has a preformed hole (2-1), described H profile steel beam (1) top flange place is welded with the curved muscle in corner (4), the curved muscle in this corner (4) is arranged in preformed hole (2-1) traverse concrete layer (3);
Described concrete layer (3) is arranged in prefabricated plate (2) top and preformed hole (2-1);
The curved muscle in described corner (4) has multiple;
The thickness of described prefabricated plate (2) is 50-80mm;
The diameter d of the curved muscle in described corner (4) is 12-16mm, and the transfer angle of the curved muscle in this corner (4) is 45 °;
The curved muscle in described corner (4) has tiltedly straight length l1With horizontal length l2, wherein l1>=12.5d, l2≥5d;
Described corner curved muscle (4) bearing capacity is 530KN-1100KN.
CN201410053878.1A 2014-02-17 2014-02-17 A kind of connecting elements of precast concrete laminated floor slab and H profile steel beam CN103790237B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410053878.1A CN103790237B (en) 2014-02-17 2014-02-17 A kind of connecting elements of precast concrete laminated floor slab and H profile steel beam

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Application Number Priority Date Filing Date Title
CN201410053878.1A CN103790237B (en) 2014-02-17 2014-02-17 A kind of connecting elements of precast concrete laminated floor slab and H profile steel beam

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CN103790237B true CN103790237B (en) 2016-07-06

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105064511A (en) * 2015-08-12 2015-11-18 浙江绿筑建筑系统集成有限公司 Connecting structure of prestress hollow floor slab and H-shaped steel beam and construction method thereof
CN105297978A (en) * 2015-11-18 2016-02-03 湖南大学 Prefabricated assembled type steel-concrete combined beam connected through bolt nails
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

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0141478A2 (en) * 1983-11-07 1985-05-15 Harumoto Iron Works Co., Ltd. A method for forming a composite structural member
JPH02311640A (en) * 1989-05-25 1990-12-27 Takenaka Komuten Co Ltd Construction of composite floor
CN1587575A (en) * 2004-06-30 2005-03-02 清华大学 Steel-concrete folding plate combined beam
CN101173542A (en) * 2007-11-23 2008-05-07 清华大学 Bidirectional steel-stacked plate concrete composite building roof
JP2011074754A (en) * 2010-11-26 2011-04-14 Ps Mitsubishi Construction Co Ltd Method for manufacturing floor slab of steel-concrete composite using precast concrete panel
KR20120013106A (en) * 2010-08-04 2012-02-14 세종대학교산학협력단 Connecting Structure between Pre-Stressed Concrete Girder and Precast Panel
CN103397727A (en) * 2013-08-16 2013-11-20 威海建设集团股份有限公司 Connection structure of building steel beam and composite floor slab
CN203729438U (en) * 2014-02-17 2014-07-23 沈阳建筑大学 Connecting component for precast concrete composite floor slab and H-shaped steel beam

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0141478A2 (en) * 1983-11-07 1985-05-15 Harumoto Iron Works Co., Ltd. A method for forming a composite structural member
JPH02311640A (en) * 1989-05-25 1990-12-27 Takenaka Komuten Co Ltd Construction of composite floor
CN1587575A (en) * 2004-06-30 2005-03-02 清华大学 Steel-concrete folding plate combined beam
CN101173542A (en) * 2007-11-23 2008-05-07 清华大学 Bidirectional steel-stacked plate concrete composite building roof
KR20120013106A (en) * 2010-08-04 2012-02-14 세종대학교산학협력단 Connecting Structure between Pre-Stressed Concrete Girder and Precast Panel
JP2011074754A (en) * 2010-11-26 2011-04-14 Ps Mitsubishi Construction Co Ltd Method for manufacturing floor slab of steel-concrete composite using precast concrete panel
CN103397727A (en) * 2013-08-16 2013-11-20 威海建设集团股份有限公司 Connection structure of building steel beam and composite floor slab
CN203729438U (en) * 2014-02-17 2014-07-23 沈阳建筑大学 Connecting component for precast concrete composite floor slab and H-shaped steel beam

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