[1]王天利,李青宁,郭 昕.人工合成最不利地震动[J].西安建筑科技大学学报:自然科学版,2014,46(04):523-528.[doi:10.15986/j.1006-7930.2014.04.012]
　WANG Tianli,LI Qingning,GUO Xin.Synthesis of the severest ground motion[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2014,46(04):523-528.[doi:10.15986/j.1006-7930.2014.04.012]
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人工合成最不利地震动()
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西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
46
期数:
2014年04期
页码:
523-528
栏目:
出版日期:
2014-08-31

文章信息/Info

Title:
Synthesis of the severest ground motion
文章编号:
1006-7930(2014)04-0523-06
作者:
王天利; 李青宁; 郭 昕
(西安建筑科技大学土木工程学院 陕西 西安 710055)
Author(s):
WANG Tianli;  LI Qingning;  GUO Xin
(School of Civil Engineering, Xi’an Univ. of Arch. & Tech, Xi’an 710055, China)
关键词:
最不利地震动; 人工合成; 时程分析
Keywords:
the severest ground motion;  synthesizing;  time-history analysis
分类号:
P315.9；U447
DOI:
10.15986/j.1006-7930.2014.04.012
文献标志码:
A
摘要:
输入地震动的选择和设计是应用时程分析法进行结构抗震研究至关重要的问题之一．文中针对重要结构或地震高危地 区结构，提出一种考虑地震输入引起结构的地震反应或结构的地震性态趋于危险或最不利状态的地震动人工合成方法．通过三个要素：拟建场地天然地震动的相频特性；现行规范设计反应谱的幅频特性；拟建结构的卓越频率分量，人工合成最不利地震动．根据提出的数学模型编制了相应的计算程序．最后通过对某立交枢纽工程中的一座曲线匝道桥梁结构，人工合成其最不利地震动，进行相应的时程分析对比计算，例证了文中人工合成最不利地震动方法的有效性．
Abstract:
When time history analysis is used in seismic research, how to choose and design the adequate ground motion inputs becomes one of the extremely important issues. The paper built a new synthesizing method suitable for a very important structure or structure in seismic high-risk areas. It considered the multiple factors that are severest or most dangerous to the structure, such as the structure resonance, phase-frequency characteristic of natural earthquake record and amplitude frequency characteristic of response spectrum accorded with the current specification. Based on the model and algorithm, the severest ground motion was synthesized and its corresponding program was developed. Finally, by using a single curved ramp bridge in interchange system as the example, the validity of the new synthesizing method was verified by contrasting its response with that of other synthesizing method.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2013-11-29 修改稿日期：2014-07-29
基金项目：国家自然科学基金项目(51078306)；陕西省自然科学基础研究计划资助项目(2013JQ7007)；西安建筑科技大学基础研究基金项目(JC1203)； 陕西省重点学科建设专项资金项目(E01004)
作者简介：王天利(1975-)，女，博士，讲师，主要从事桥梁结构抗震及分析等方面的研究．E-mail: wangtldq@xauat.edu.cn
更新日期/Last Update: 2015-10-06