连续拱桥墩顶地震位移上限识别

英文篇名：SEISMIC MARGIN IDENTIFICATION FOR PIER TOP DISPLACEMENT OF CONTINUOUS ARCH BRIDGE
中文刊名：地震工程与工程振动
英文刊名：Earthquake Engineering and Engineering Vibration
作者：张艳红 ; 王前信
英文作者：Zhang Yanhong
英文作者：(Institute of Structural Theory ; Tongji University)
英文作者：Wang Qianxin
英文作者：(Institute of Engineering Mechanics ; State Seismological Bureau 150080 ; China)
中文关键词：拱桥 ; 桥墩 ; 地震动 ; 位移 ; 积函数极值法
英文关键词：arch bridge ; bridge pier ; method of extremum of product function ; ground motion ; displacement
出版日期：1995-12-28
机构：国家地震局工程力学研究所,国家地震局工程力学研究所中国哈尔滨150080 ,中国哈尔滨150080
年：1995
期：04
出版单位：地震工程与工程振动

摘要

本文基于积函数极值法,对刚度分布未确知的连续拱桥的墩顶地震位移上限进行了识别。文中研究了两跨、三跨,任意奇数跨和任意偶数跨等各种情形,对简化模型作了精度分析,并将所识别的上限值与实际计算反应值进行了比较。
In this paper based on the method of extremum of product function the seismic margin identification is completed for the displacement response of the pier top of continuous arch bridge with the rigidity distribution unidentified. Several cases such as i ) two-span case ; ii) three - span case; iii)number of spans to be odd and iv) number of spans to be even are studied. The accuracy of the simplified model is analyzed. The identified upper bound margin of the seismic response is compared with the result from practical calculation.

引文

1 王前信.连续拱桥桥墩地震力的上限.地震工程与工程振动,7卷3期,1987,9
2 Wang Qianxin, Liu Chunguang. Upper Bound Seismic Loads on Structures with Unidentified Rigidity Distribution, Smi RT-11 Transaction Vol. K (August 1991) , Tokyo, Japan
3 Wang Qianxin, Liu Chunguang. Seismic Loads on Supporting Frames of Gas Pipelines, ASME-PVP, Nashville, USA, 1990