CN103572839A - Mixed shear connector - Google Patents

Mixed shear connector Download PDF

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Publication number
CN103572839A
CN103572839A CN201310542141.1A CN201310542141A CN103572839A CN 103572839 A CN103572839 A CN 103572839A CN 201310542141 A CN201310542141 A CN 201310542141A CN 103572839 A CN103572839 A CN 103572839A
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CN
China
Prior art keywords
connector
steel
bent
channel
connectors
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Application number
CN201310542141.1A
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Chinese (zh)
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CN103572839B (en
Inventor
郑廷银
张志宇
褚秋云
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南京工业大学
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Application filed by 南京工业大学 filed Critical 南京工业大学
Priority to CN201310542141.1A priority Critical patent/CN103572839B/en
Publication of CN103572839A publication Critical patent/CN103572839A/en
Application granted granted Critical
Publication of CN103572839B publication Critical patent/CN103572839B/en

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Abstract

The invention discloses a mixed shear connector which comprises channel steel connectors and bent-up steel bar connectors, wherein the channel steel connectors and the bent-up steel bar connectors are arranged in a floor slab and distributed on a steel beam alternately; the channel steel connectors are suitable for being arranged at the beam end; preformed holes are formed in ventral plates of the channel steel connectors; and reinforcement bars in reinforced nets in the floor slab penetrate through the preformed holes. According to the mixed shear connector, the channel steel connectors and the bent-up steel bar connectors are distributed on the steel beam at intervals, so that joint shear of the bent-up steel bar connectors and the channel steel connectors is realized, cooperative work of the steel beam and the concrete floor slab is guaranteed, and the structure bearing capacity is improved.

Description

A kind of mixing shear connector

Technical field

The present invention relates to civil engineering work technical field of structures, be specifically related to a kind of mixing shear connector.

Background technology

Peg is flexible connecting member, and stressed do not have a directionality, and volume is little, and flexible arrangement is convenient but shear-carrying capacity is little, and bending rigidity is little, and pressure-bearing surface is little, and Root Stress concentration degree is large, and too much welding has produced too much residual stress.Although have good deformability, bearing capacity is lower.And need special-purpose welding machine and porcelain ring, construction technology is comparatively complicated.

The in the situation that of conditions permit, most of meeting adopts peg connector, and lower bearing capacity makes, in opposing shearing, can use a large amount of pegs.Although the supporting capacity of the actual bearer energy force rate current Chinese code of practice of peg the inside regulation is much bigger, the design formulas of shear capacity of studs is relatively conservative, thereby it is further on the high side to cause calculating needed peg quantity, and spacing is less than normal.Except being unfavorable for design structure, increased cost, also brought trouble also to follow-up construction simultaneously, affected the speed of engineering.

The inclined to one side rigidity of channel-section steel connector, in the situation that not possessing welding of peg equipment, the connector of channel-section steel is a kind of effective alternative, the easy construction of channel-section steel connector also has the stronger anti-ability of starting simultaneously.Although compared with general flexible connecting member, bearing capacity is higher, deformability is poor, and brittle fracture easily occurs during destruction.

Except the connector of above two kinds, the PBL connector rising again in recent years.That a kind of transverse reinforcement by concrete and perforated holes forms whole common opposing shearing, although it has fatigue behaviour to be better than peg, bearing capacity is high, the advantage such as the good and job practices of anti-fatigue performance is simple, but the discreteness of the ultimate bearing capacity of PBL connector, much larger than peg, is therefore not easy to simulate reliable design formulas, does not also have standard to make regulation to the size of PBL connector and supporting capacity both at home and abroad at present, therefore, inconvenience application.

Summary of the invention

The object of the invention is in order to overcome the deficiencies in the prior art, a kind of mixing shear connector that has rigid connector and flexible connecting member advantage concurrently is provided, this connector is interval arrangement of grooves steel fastener and bent-up bar connector on girder steel, make bent-up bar connector and the common shearing resistance of channel-section steel connector, guarantee girder steel and concrete floor collaborative work, reach the object that improves structural bearing capacity.

The technical solution used in the present invention is: a kind of mixing shear connector, comprise channel-section steel connector and bent-up bar connector, described channel-section steel connector and bent-up bar connector are arranged in floor, channel-section steel connector and bent-up bar connector alternate layout on girder steel, at beam-ends, described channel-section steel connector should be set, the web of channel-section steel connector is provided with preformed hole, and the reinforcing bar in described floor in reinforced mesh is through described preformed hole.

As preferably, described bent-up bar connector place sets up additional transverse steel bars, and fastening with bent-up bar connector.

Novel mixing shear connector of the present invention is jointly to consist of the channel-section steel connector of inclined to one side rigidity and partially flexible bent-up bar connector.This novel mixing shear connector jointly being formed by rigid connector and flexible connecting member, both reduced the brittle behavior of simple rigid connector structure, increased the ductility of structure, strengthened the anti-fatigue performance of structure, overcome again the larger defect of distortion of simple flexible connecting member structure, make its more reasonable stress, performance is more superior.

When the present invention arranges shear connector, channel-section steel connector and bent-up bar connector are answered alternate layout, and the suitable arrangement of grooves steel fastener of beam-ends, to utilize its stronger anti-ability of starting.Reinforcing bar in floor in reinforced mesh, when meeting with channel-section steel connector, passes the channel-section steel connector web of drilling, and both convenient construction, had strengthened again reinforcing bar and shear connector connection function.In order further to increase the connection function of reinforcing bar and shear connector, at bent-up bar connector, place sets up transverse reinforcement, and connects jail.Reinforced mesh in floor (containing the transverse reinforcement of setting up) is firmly connected with shear connector like this, also just means the adhesion stress having strengthened between shear connector and concrete, thereby has increased combined effect.

Shear connector in the present invention (containing channel-section steel connector and bent-up bar connector) is connected by weld seam with girder steel, only needs conventional machining and welding equipment, without need special welding equipment as peg connector.

Beneficial effect: the present invention, with respect to the rigid connector structure of traditional form, has reduced the brittle behavior of structure, has increased the ductility of structure, has strengthened the anti-fatigue performance of structure.

The present invention, with respect to the flexible connecting member structure of traditional form, has reduced the moderate finite deformation of combining structure, makes its more reasonable stress, and performance is more superior.

The present invention, with respect to the peg connector of traditional form, does not need special welding equipment, can reduce fielding welding workload, reduces fabrication and installation cost, accelerates the speed of application of engineering, reduces the total cost of engineering.

The anti-ability of starting of structure of the present invention is strong.

Shear connector of the present invention is drawn materials easily, and cost is low; Easy to connect, construction is fast; Adhesion stress is strong, and combined effect is good; There is good overall economic efficiency.

The present invention proposes the new approaches of stud connector design, expanded the range of application of combining structure, there is good social benefit and conversion prospect.

Accompanying drawing explanation

Fig. 1 is the structural representation of the present invention's mixing shear connector.

The specific embodiment

Below in conjunction with the specific embodiment and accompanying drawing, the present invention will be further described:

As shown in Figure 1, a kind of mixing shear connector, comprise channel-section steel connector 1 and bent-up bar connector 2, described channel-section steel connector 1 and bent-up bar connector 2 are arranged in floor, channel-section steel connector 1 and bent-up bar connector 2 alternate layout on girder steel 3, at beam-ends, described channel-section steel connector 1 should be set, the web of channel-section steel connector 1 is provided with preformed hole, and the longitudinal reinforcement 4 in described floor in reinforced mesh is through described preformed hole.

Described bent-up bar connector place sets up additional transverse steel bars 5, and fastening with bent-up bar connector 2.

The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (2)

1. one kind is mixed shear connector, it is characterized in that: comprise channel-section steel connector and bent-up bar connector, described channel-section steel connector and bent-up bar connector are arranged in floor, channel-section steel connector and bent-up bar connector alternate layout on girder steel, at beam-ends, described channel-section steel connector should be set, the web of channel-section steel connector is provided with preformed hole, and the reinforcing bar in described floor in reinforced mesh is through described preformed hole.
2. a kind of mixing shear connector according to claim 1, is characterized in that: described bent-up bar connector place sets up additional transverse steel bars, and fastening with bent-up bar connector.
CN201310542141.1A 2013-11-05 2013-11-05 A kind of mixing shear connector CN103572839B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310542141.1A CN103572839B (en) 2013-11-05 2013-11-05 A kind of mixing shear connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310542141.1A CN103572839B (en) 2013-11-05 2013-11-05 A kind of mixing shear connector

Publications (2)

Publication Number Publication Date
CN103572839A true CN103572839A (en) 2014-02-12
CN103572839B CN103572839B (en) 2015-09-09

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104405041A (en) * 2014-11-21 2015-03-11 大元建业集团股份有限公司 Assembly type prefabricated floor slab connecting piece for steel structure building and mounting method thereof
CN105297979A (en) * 2015-03-16 2016-02-03 洛阳辰祥机械科技有限公司 Double-property shearing force connecting member
CN106638961A (en) * 2017-01-10 2017-05-10 北京交通大学 Assembly type steel frame connection node with post-seismic recoverable function
CN107558615A (en) * 2017-09-06 2018-01-09 河海大学 Friction-type shaped steel shear connector and its construction method
CN109371834A (en) * 2018-11-23 2019-02-22 中铁建大桥工程局集团第工程有限公司 The shear connections component of steel-concrete composite beam floorings

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3890750A (en) * 1972-12-08 1975-06-24 Composite Const Systems Construction system
CN1587575A (en) * 2004-06-30 2005-03-02 清华大学 Steel-concrete folding plate combined beam
CN101725182A (en) * 2010-02-01 2010-06-09 昆明理工大学 Shearing connecting piece
CN101736815A (en) * 2010-02-01 2010-06-16 昆明理工大学 Shear connector
CN102359061A (en) * 2011-09-22 2012-02-22 江苏省交通科学研究院股份有限公司 Shear connector of waveform steel plate and concrete
CN203569692U (en) * 2013-11-05 2014-04-30 南京工业大学 Mixing shear connector

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3890750A (en) * 1972-12-08 1975-06-24 Composite Const Systems Construction system
CN1587575A (en) * 2004-06-30 2005-03-02 清华大学 Steel-concrete folding plate combined beam
CN101725182A (en) * 2010-02-01 2010-06-09 昆明理工大学 Shearing connecting piece
CN101736815A (en) * 2010-02-01 2010-06-16 昆明理工大学 Shear connector
CN102359061A (en) * 2011-09-22 2012-02-22 江苏省交通科学研究院股份有限公司 Shear connector of waveform steel plate and concrete
CN203569692U (en) * 2013-11-05 2014-04-30 南京工业大学 Mixing shear connector

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104405041A (en) * 2014-11-21 2015-03-11 大元建业集团股份有限公司 Assembly type prefabricated floor slab connecting piece for steel structure building and mounting method thereof
CN105297979A (en) * 2015-03-16 2016-02-03 洛阳辰祥机械科技有限公司 Double-property shearing force connecting member
CN106638961A (en) * 2017-01-10 2017-05-10 北京交通大学 Assembly type steel frame connection node with post-seismic recoverable function
CN107558615A (en) * 2017-09-06 2018-01-09 河海大学 Friction-type shaped steel shear connector and its construction method
CN109371834A (en) * 2018-11-23 2019-02-22 中铁建大桥工程局集团第工程有限公司 The shear connections component of steel-concrete composite beam floorings

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Granted publication date: 20150909

Termination date: 20191105