耐震时程法在高墩刚构桥抗震分析中的应用

郝朝伟; 陈彦江; 何浩祥; 王力波; 蔡江龙

doi:10.13409/j.cnki.jdpme.2017.02.006

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耐震时程法在高墩刚构桥抗震分析中的应用

结构与桥梁地震工程 | 更新时间：2025-12-11

- 耐震时程法在高墩刚构桥抗震分析中的应用
- The Endurance Time Method in the Seismic Analysis of the Continual Rigid-bridge with High Piers
- 防灾减灾工程学报 2017年37卷第2期页码：215-221
- 作者机构：
- 作者简介：
- 基金信息：
  
  国家自然科学基金项目（51378037;51378039;91315301-03）资助
- DOI：10.13409/j.cnki.jdpme.2017.02.006
  中图分类号： 442.55;U448.23
- 纸质出版：2017
- 稿件说明：
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[1]郝朝伟,陈彦江,何浩祥,王力波,蔡江龙.耐震时程法在高墩刚构桥抗震分析中的应用[J].防灾减灾工程学报,2017,37(02):215-221.

郝朝伟, 陈彦江, 何浩祥, et al. The Endurance Time Method in the Seismic Analysis of the Continual Rigid-bridge with High Piers[J]. 2017, 37(2): 215-221.
[1]郝朝伟,陈彦江,何浩祥,王力波,蔡江龙.耐震时程法在高墩刚构桥抗震分析中的应用[J].防灾减灾工程学报,2017,37(02):215-221. DOI： 10.13409/j.cnki.jdpme.2017.02.006.

郝朝伟, 陈彦江, 何浩祥, et al. The Endurance Time Method in the Seismic Analysis of the Continual Rigid-bridge with High Piers[J]. 2017, 37(2): 215-221. DOI： 10.13409/j.cnki.jdpme.2017.02.006.

摘要

耐震时程法是一种新的基于时域的动力弹塑性抗震分析方法

与其他抗震方法相比

耐震时程法在大型复杂结构非线性分析时极具优势。以一座典型高墩刚构桥为例

介绍了耐震时程法的概念、基于桥梁抗震规范反应谱的耐震时程波生成方法及其在桥梁抗震分析中的应用

并且提出了符合高墩桥梁实际的计算Park-Ang损伤指数加权系数的方法。结果表明:耐震时程法预测柔性桥梁结构地震响应是合理的

宏观上表现为传统非线性分析响应的均值;耐震时程法分析时输入结构的能量与中等持时的天然波能量相比偏大

评估桥梁地震损伤时较为保守;耐震时程法用于设计初期桥梁方案比选时

只需1次非线性分析即可高效评估不同桥型抗震性能。

Abstract

The endurance time method（ETM）is a time-history based dynamic pushover procedure for seismic analysis and design of structures.Compared with other seismic analysis methods

endurance time method is more advantageous for nonlinear analysis of complex structures.Based on a typical continuous rigid frame bridge with double-leg thin-walled high piers

the concept of endurance time method is introduced to generate an endurance time accelerogram based on the design spectra in Chinese Bridge Seismic Design Code.Application of the endurance time method in the nonlinear seismic analysis of complex bridges with high piers is the main purpose of this study.Considering the particularity of bridges with high piers

a new method is proposed to calculate weighting coefficient of Park-Ang damage index.The results show that structural responses using endurance time method are usually between envelopes of traditional nonlinear time history analysis;The inherent energy in structures using endurance time method is larger than that of natural records whose duration time is mean;Endurance time method can be efficient to choose the bridge structure primary selection in structural seismic analysis.

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references

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