Tests on impact effect of partial fracture at steel frame connections

被引：1
作者：
Chen Y. [1 ,2 ]
Bian R. [1 ]
Liao F. [1 ]
机构：
[1] College of Civil Engineering, Tongji University
[2] State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University
来源：
Frontiers of Architecture and Civil Engineering in China | 2008年 / 2卷 / 4期
基金：
高等学校博士学科点专项科研基金;
关键词：
Experimental research; Extreme load; Impact effect; Partial fracture; Steel frame connection;
D O I：
10.1007/s11709-008-0049-z
中图分类号：
学科分类号：
摘要：
Impact effect of sudden fracture at steel frame connections under severe earthquake or other extreme loads is presented in this paper. The relation of impulse caused by structural fracture to the release of inner force at the cracked location, the magnitude of the response to impact on the basis of one degree of freedom model, and the ratio of the peak value of response to natural period of the system are investigated. Two types of fracture tests were designed and carried out both on uniaxial steel bar tensioned and moment resistant steel frame model. It is proven that the response during the fracture process can be measured quite well using high-frequency data processing system. It is also revealed that the instant fracture of structural connection is characterized by progressive and partial fracture. Numerical evaluation of the impact effect of connection fracture is carried out. © 2008 Higher Education Press and Springer-Verlag GmbH.
引用
收藏
页码：295 / 301
页数：6
相关论文
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