| 缺乏近断层强震观测资料地区抗震设计规范反应谱研究 |
| |
| 引用本文： | 李新乐,窦慧娟,朱晞,孙建刚.缺乏近断层强震观测资料地区抗震设计规范反应谱研究[J].地震学报,2007,29(4):419-425. |
| |
| 作者姓名： | 李新乐 窦慧娟 朱晞 孙建刚 |
| |
| 作者单位： | 1) 中国辽宁大连116600大连民族学院土木建筑工程学院2) 中国北京100044北京交通大学土木建筑工程学院 |
| |
| 摘 要： | 根据最近几次的近断层地震观测记录研究显示，在现行结构抗震设计规范中很少考虑近断层效应的影响，对于缺乏近断层强震观测资料地区，抗震设计规范的改进方法及近断层效应的设计参数还没有统一结论. 本文基于UBC97近断层因子设计理念， 在收集世界范围内近断层观测记录的基础上，按场地和震级进行分类，建立了中长周期关键点处的加速度谱需求的衰减关系式，推导给出了缺乏近断层观测资料地区近断层影响因子的震级和断层距的关系式. 并以我国现行的建筑抗震设计规范为基础，建议了近断层影响因子的参考取值和修正后的反应谱曲线，为我国结构抗震设计提供了参考.
|
| 关 键 词： | 近断层强震记录 谱需求 设计反应谱 近断层影响因子 |
| 文章编号： | 0253-3782(2007)04-0419-07 |
| 修稿时间： | 2007年1月18日 |
RESPONSE SPECTRUM OF SEISMIC DESIGN CODE FOR ZONES LACK OF NEAR-FAULT STRONG EARTHQUAKE RECORDS |
| |
| Li Xinle,Dou Huijuan,Zhu Xi,Sun Jiangang.RESPONSE SPECTRUM OF SEISMIC DESIGN CODE FOR ZONES LACK OF NEAR-FAULT STRONG EARTHQUAKE RECORDS[J].Acta Seismologica Sinica,2007,29(4):419-425. |
| |
| Authors: | Li Xinle Dou Huijuan Zhu Xi Sun Jiangang |
| |
| Abstract: | It was shown from the study on the recently near-fault earthquake ground motions that the near-fault effects were seldom considered in the existing Chinese seismic code. Referring to the UBC97 design concept for near-fault factors, based on the collected world-widely free-site records of near-fault earthquakes ground motions classified by earthquake magnitude and site condition, the attenuation relationship expressions of the acceleration spectrum demand at the key points within the long period and moderate period were established in term of the earthquake magnitude and the site condition. Furthermore, the near-fault factors' expressions about the earthquake magnitude and the fault distance were deduced for the area lack of near-fault strong earthquake records. Based on the current Chinese Building Seismic Design Code, the near-fault effect factors and the modified design spectral curves, which were valuable for the seismic design, were proposed to analyze the seismic response of structures. |
| |
| Keywords: | near-fault strong earthquake records spectral demand design response spectrum near-fault effect factor |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地震学报》浏览原始摘要信息 |
|
点击此处可从《地震学报》下载全文 |
