Quantification of seismic performance levels for urban viaduct

被引：0

作者：

Liu Y. ^{[1
]}

Zhao S. ^{[1
]}

Qiang S. ^{[1
]}

机构：

[1] School of Civil Engineering, Southwest Jiaotong University

来源：

Xinan Jiaotong Daxue Xuebao/Journal of Southwest Jiaotong University | 2010年 / 45卷 / 01期

关键词：

Concrete compression strain; Damage index; Displacement ductility coefficient; Performance level; Quantification; Steel tension strain;

D O I：

10.3969/j.issn.0258-2724.2010.01.009

中图分类号：

学科分类号：

摘要：

By taking a urban viaduct as the research object and on the premise of the determinations of performance levels (integrity, almost integrity, slight damage, moderate damage and serious damage) and performance indexes (damage index expressed by the displacement ductility coefficient of bridge pier top), the quantitative process of performance levels was emphatically discussed to realize the performance-based seismic design of urban viaducts. Its concrete steps are to propose the corresponding relationship between each performance level and limits of concrete compression strain and steel tension strain in the plastic hinge of bridge pier, establish the relationship between each performance level and the displacement and the displacement ductility coefficient of bridge pier top, and set up the quantitative relationship between each performance level and the damage index. A comparison with the current researches indicates that the proposed performance indexes are rational.

引用

页码：54 / 58+64

共 22 条

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