吉林大学学报(工学版) ›› 2010, Vol. 40 ›› Issue (01): 67-0071.

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Seismic performance of outer-shell connection of cold-formed square tubular column and H-shaped steel beam

LI Li-ming1,CHEN Yi-yi1,LI Ning2,CAI Yu-chun3   

  1. 1.School of Civil Engineering, Tongji University, Shanghai 300072, China;2.Beijing Institute of Architectural Design, 7S1 Studio, Beijing 100045, China;3.Beijing SBS Initialization Systems Engineering Ltd, Beijing 100037, China
  • Received:2008-06-11 Online:2010-01-01 Published:2010-01-01

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Abstract:

Based on the research of steel housing industry, a new outer-shell joint connecting cold-formed square tubular column and H-shaped steel beam with bolts is designed. To study the seismic performance of this joint, a quasi-static experiment under low reversed cyclic load of three cross-shaped outer-shell joint specimens is carried out. With the hysteretic hoops acquired from the experiment, the effective damping ratio of the joint, with which its energy dissipation can be weighted, is calculated. From the restoring force model curves some parameters can be obtained, such as skeleton curves, which were similar to the curves under static load, initial rigidities of the joint and rigidity degeneration etc. Based on this experiment, the seismic performance of outer-shell column-beam joint is appraised in respect of strength, deformation and energy dissipation.

Key words: civil engineering structure, outer-shell joint, cold-formed square tubular column, lowfrequency cyclic load, seismic performance

CLC Number: 

  • TU398
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