Experiment of seismic performance for steel-concrete composite box-beam

ZHOU Wang-bao; JIANG Li-zhong; LI Fang-fang; HUANG Zhi

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Article Navigation > Journal of Traffic and Transportation Engineering > 2014 > 14(6): 1-9

ZHOU Wang-bao, JIANG Li-zhong, LI Fang-fang, HUANG Zhi. Experiment of seismic performance for steel-concrete composite box-beam[J]. Journal of Traffic and Transportation Engineering, 2014, 14(6): 1-9.

Citation:

ZHOU Wang-bao, JIANG Li-zhong, LI Fang-fang, HUANG Zhi. Experiment of seismic performance for steel-concrete composite box-beam[J]. Journal of Traffic and Transportation Engineering, 2014, 14(6): 1-9.

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Experiment of seismic performance for steel-concrete composite box-beam

1.
Hubei Key Laboratory of Roadway Bridge and Structure Engineering, Wuhan University of Technology, Wuhan 430070, Hubei, China
2.
School of Civil Engineering, Central South University, Changsha 410075, Hunan, China
3.
China Railway Tunnel Survey and Design Institute Co., Ltd., Tianjin 300133, China
4.
School of Civil Engineering, The Pennsylvania State University, Park 17050, Pennsylvania, USA

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Author Bio:
ZHOU Wang-bao (1982-), male, lecturer, PhD, +86-27-87651786, zhwb@whut.edu.cn
Received Date: 2014-06-26
Publish Date: 2014-12-25

Abstract

Abstract

Four steel-concrete composite box-beams (SCCBBs) with different shear connection degrees and height-width ratios of web were experimentally studied under low-cyclic reversed loading.The seismic performances, such as failure mode, hysteretic behavior, skeleton curve, energy-dissipating capacity, ductility, and rigidity degeneration rule, were deeply studied.The influences of shear connection degree and height-width ratio of web on the seismic performance were mainly analyzed.Study result shows that according to different shear connection degrees and height-width ratios of web, there are four types of failure modes, which are local buckling failure, bending-cutting failure, compressing-bending failure, and shear failure.Load-deflection hysteretic curve and skeleton curve can be divided into three stages that are elasticity, elastoplasticity, and failure.Load-deflection hysteretic loops, with different shear connection degrees and height-width ratios of web, are plump and do not have obvious rheostriction, which shows that SCCBB has good seismic performances.Skeleton curve becomes plumper and energy-dissipating capacity becomes higher when shear connection degree increases, but the change of ductility is not obvious.Ductility becomes better and energy-dissipating capacity bocomes higher when the height-width ratio of web increases.The influences of shear connection degree and height-width ratio of web on rigidity degeneration are greater at earlier stage and less at later stage.
- bridge engineering,
- steel-concrete composite box-beam,
- seismic performance,
- shear connection degree,
- height-width ratio of web,
- ductility

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References(22)

References

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