Load history-based model for prestressed concrete beam damage evaluation

被引：0
|
作者：
Jianli Yuan
Wang Yi
Zhonghui Qian
机构：
[1] Yangzhou University,College of Architecture Science and Engineering
来源：
Earthquake Engineering and Engineering Vibration | 2007年 / 6卷
关键词：
prestressed concrete; earthquake force; load history; energy dissipation; damage-failure evaluation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The residual capability of a damaged structure to resist further load is essential in optimal seismic design and post-earthquake strengthening. An experimental study on the hysteretic characteristics of prestressed concrete frame beams under different loading histories was performed to explore the influence of load history on energy dissipation and failure characteristics of the member. Based on the test results, the failure of the beam is defined, and the relationship between the failure moment under cyclic load and from the skeleton curve is formulated. Finally, based on displacement and energy dissipation, a model for prestressed concrete beam damage-failure evaluation is developed. In this model, the effect of deformation level, cumulative dissipated energy, and loading history on prestressed concrete beam damage-failure is incorporated, thus it is applicable to stochastic earthquake forces.
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页码：383 / 390
页数：7
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