[1]何海健,徐孟豪,苏亮,等.结构弹塑性时程分析中输入地震动的选取数量研究[J].地震工程与工程振动,2018,(02):150-156.[doi:10.13197/j.eeev.2018.02.150.hehj.017]
 HE Haijian,XU Menghao,SU Liang,et al.Study on numbers of earthquake ground motions for nonlinear time-history analysis of structures[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2018,(02):150-156.[doi:10.13197/j.eeev.2018.02.150.hehj.017]
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结构弹塑性时程分析中输入地震动的选取数量研究
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《地震工程与工程振动》[ISSN:/CN:]

卷:
期数:
2018年02
页码:
150-156
栏目:
论文
出版日期:
2018-08-03

文章信息/Info

Title:
Study on numbers of earthquake ground motions for nonlinear time-history analysis of structures
作者:
何海健1 徐孟豪1 苏亮1 向畅1 莫海萍2
1. 浙江大学 建筑工程学院, 浙江 杭州 310058;
2. 中国电力工程顾问集团华东电力设计院, 上海 200333
Author(s):
HE Haijian1 XU Menghao1 SU Liang1 XIANG Chang1 MO Haiping2
1. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China;
2. China Electric Power Engineering Consulting Group Huadong Electric Power Design Institute, Shanghai 200333, China
关键词:
弹塑性时程分析框架结构地震动数量天然波人工波
Keywords:
nonlinear time-history analysisframe structurequantityof seismic wavesnatural seismic waveartificial seismic wave
分类号:
P315.3+1
DOI:
10.13197/j.eeev.2018.02.150.hehj.017
摘要:
合适数量的地震动是保证结构弹塑性时程分析结果可靠性的关键问题之一。选取符合规范要求的足量天然波和人工波作为地震输入,计算3、6、9、12层4个钢筋砼框架结构的地震响应,以结构最大层间位移角、顶点位移和基底剪力为分析指标,将小样本结果与大样本基准值进行比较,分析不同数量地震动输入下计算结果的可靠性。结果表明,当计算结果取多条地震动输入下的最大值时,"2+1"是最合适的组合,与当前规范对于弹性时程分析的规定相一致;当计算结果取平均值时,采用算术平均值和几何平均值未表现出明显差异,"8+4"为最佳的组合,是结果可靠性和计算工作量之间的最佳平衡点。
Abstract:
Proper quantity of earthquake ground motions is one of the key problems to ensure the reliability of structural nonlinear time-history analysis. Four reinforced concrete frames with their stories of 3,6,9,12 were considered. Peak inter-story drift angles, top displacement and base shear were chosen as the damage measures.The results were compared with the benchmark values of large samples, and the reliability of the results under different quantities of earthquake ground motions were analyzed. Results show that, when taking the maximum value of various earthquake ground motions as the final result, "2+1" is the most appropriate combination. It has the minimal computational effort and best reliability. And when taking the average value as the result, there are no difference between arithmetic mean and geometric mean,and for this case, "8+4" is the most appropriate combination. It is the best balance point between the reliability and the computational effort.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-05-08;改回日期:2017-08-10。
基金项目:国家科技支撑计划(2012BAJ07B03)
作者简介:何海健(1992-),男,硕士研究生,主要从事结构工程抗震研究.E-mail:hehaijian0512@foxmail.com
通讯作者:苏亮(1975-),男,副教授,主要从事结构工程抗震研究.E-mail:suliang@zju.edu.cn
更新日期/Last Update: 1900-01-01