中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2011, Vol. 30 ›› Issue (2): 190-195.DOI: 10.3969/j.issn.1674-0696.2011.02.02

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近断层地震动对大跨钢管拱桥作用指标研究

邢帆,祝兵   

  1. 西南交通大学土木工程学院, 四川成都610031
  • 收稿日期:2010-12-27 修回日期:2011-02-21 出版日期:2011-04-15 发布日期:2015-03-12
  • 作者简介:邢帆(1977 — ),男,陕西西安人,博士研究生,主要从事钢管混凝土拱桥抗震性能方面的研究。E-mail:northwood77@126.com。
  • 基金资助:
    中央高校基本科研业务费专项资金项目(SWJTU10ZT01)

Seismic Action Assessment Indicator of Nearfault Ground Motion for Longspan CFST Arch Bridge

XING Fan, ZHU Bing   

  1. School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China
  • Received:2010-12-27 Revised:2011-02-21 Online:2011-04-15 Published:2015-03-12
  • About author:Supported by National Basic Research Program of China (No.2004CB619106)
  • Supported by:
    国家重点基础研究发展计划资助项目(2004CB619106)

摘要: 结合地震动的频谱特性,研究了钢管混凝土拱桥受近断层地震动作用的评价指标。根据长周期、大跨拱桥结 构易受地震低频分量和时域能量脉冲破坏作用的特点,提出了利用二进正交小波分解地震信号,并综合考虑各小 波分量峰值对结构的作用影响,得到可以用来评价近断层地震动对所研究拱桥结构破坏作用的指标,体现了基于 性能的结构抗震设计思想。

关键词: 钢管混凝土拱桥, 近断层地震动, 地震作用, 评价指标

Abstract: Assessment indicator of the near fault ground motions on CFST arch bridge was studied. According to the fact that longspan arch bridge was liable to be destroyed by the se ism ic lowfrequency im pu lse, decom pos ition o f se ism ic signa l by dyadic orthogonal wave let transform was proposed; the influence of wavelet component peak values on structure was taken into account; assessment indicator of seismicaction was proposed; perform ancebased seismic design was shown.

Key words: CFST arch bridge, nearfault ground motion, seismic action, assessment indicator

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