[1]盛俭,薄景山,佴磊,等.近断层地震动场预测——以长春市为例[J].地震工程与工程振动,2012,(02):048-53.
 SHENG Jian,BO Jingshan,NAI Lei,et al.Forecast for near-fault ground motion field: Taking Changchun City as an example[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2012,(02):048-53.
点击复制

近断层地震动场预测——以长春市为例
分享到:

《地震工程与工程振动》[ISSN:/CN:]

卷:
期数:
2012年02期
页码:
048-53
栏目:
出版日期:
2012-04-28

文章信息/Info

Title:
Forecast for near-fault ground motion field: Taking Changchun City as an example
作者:
盛俭12 薄景山3 佴磊4 邹春红2
1. 中国地震局 工程力学研究所,黑龙江 哈尔滨 150080;
2. 吉林省地震局,吉林 长春 130117;
3. 防灾科技学院,河北 燕郊 101601;
4. 吉林大学 建设工程学院,吉林 长春 130026
Author(s):
SHENG Jian12 BO Jingshan3 NAI Lei4 ZOU Chunhong2
1. Institute of Engineering Mechanics, China Earthquake Administration,Harbin 150080, China;
2. Earthquake Administration of Jilin Province,Changchun 130117, China;
3. Institute of Disaster Prevention Science and Technology, Yanjiao 101601, China;
4. College of Construction Engineering, Jilin University, Changchun 130026, China
关键词:
近断层地震动有限元加速度预测
Keywords:
near faultground motionfinite elementpeak accelerationforecasting
分类号:
P315.91
摘要:
断层带附近地震动场分布的研究,是当前地震工程领域研究的热点问题之一。近断层地震动场的分布对在断层附近进行抗震结构设计时,不仅是提供地震动输入,也是确定建设场地避让范围的重要依据之一。以区域地震构造背景分析、目标断层活动性鉴定、地震危险性评价为基础,结合断层探测结果,利用统计经验关系等最终确定发震断层,并建立相应的震源模型。采用显式有限元和并行计算技术计算目标区域场地的长周期地震动。利用有限断层随机合成的方法,计算高频地震动。将低频和高频地震动合成为目标区域内的宽频带地震动时程。对局部特殊场地条件地区,基于场地调查和勘探的数据,利用等效线性化等方法进行一维土层的非线性反应计算,给出这些特殊场地的宽频带地震动时程。最后,根据地震动时程获得设定地震发生时,目标区域的峰值加速度分布预测图和相应的反应谱。以长春市为例预测了在设定地震发生时,近断层地震动场的分布情况。当长春尖山子—卡伦断层发生6.0级地震时,潜在破坏性地震动的影响范围集中在附近,沿断层走向分布。加速度峰值沿断层垂直变化,主要为90 Gal~140 Gal。只是在长春市南部加速度峰值达到200 Gal。本研究的预测结果具备断层附近地震动的一些最基本的特征,符合当前对断层附近地震动的基本认识。
Abstract:
The study of near fault ground motion field distribution is one of hot points in earthquake engineering. Near-fault ground motion field distribution not only provides an input motion but also provides the range of avoiding belt of the foundation in seismic design. Based on regional geological structure, activity assessment of aimed fault and assessment of seismic hazard, using experience statistical relationship to determine seismogenic faults, the corresponding source model was set up. Combining 3-D finite element analysis and parallel computing, the long period ground motions were calculated. The method of limited-fault random synthesis was used to calculate the high frequency ground motion. The high-frequency and low-frequency ground motions were composed to broad-frequency ground motion. 1-D equivalent linearization method was used to calculate the broad-frequency ground motion time histories of some special local sites according to survey data. The PGA distribution and the corresponding response spectra of the target region are got according to the ground motion time histories when the design earthquake occurs. As an example, the near-fault ground motion distribution of Changchun City was predicted when a setting earthquake occurred.When an Ms6.0 earthquake occurs on the Jianshanzi-Kalun fault, the influence range of potentially destructive ground motion is near the fault, and the distribution of influence range is along the fault. The peak acceleration varies along the fault vertically mainly from 90 Gal to 140 Gal and the peak acceleration reaches 200 Gal only in the southern part of Changchun City. The forecasting result has the basic characteristics of near-fault ground motion, and matches the current basic understanding of the ground motion near the fault.

参考文献/References:

[1] 刘启方,袁一凡,金 星,等.近断层地震动的基本特征[J].地震工程与工程震动,2006,26(1):1-10. LIU Qifang,YUAN Yifan,JIN Xing,et al.Basic Characteristics of near-fault ground motion[J].Journal of Earthquake Engineering and Engineering Vibration,2006,26(1):1-10.(in Chinese)
[2] 刘启方.基于运动学和动力学震源模型的近断层地震动研究. 哈尔滨:中国地震局工程力学研究所,2005. LIU Qifang.Studies on near-fault grond motions based on kinematic and dynamic source models.Harbin:Institute of Engineering Mechanics,China Earthquake Adminstation,2005.(in Chinese)
[3] 刘启方,丁海平.近断层地震动预测实例[J].地震工程与工程震动,2008,28(6):28-32. LIU Qifang,DING Haiping.An example of near-fault strong ground motion predication[J].Journal of Earthquake Engineering and Engineering Vibration,2008,28(6):28-32.(in Chinese)
[4] 丁海平,刘启方,黄 勇,等.三维地震动场数值模拟并行计算系统[J].地震工程与工程震动,2004,24(2):19-23 . DING Haiping,LIU Qifang,HANG Yong,et al.Parallel computer system for 3-D numerical simulation of ground motion[J].Journal of Earthquake Engineering and Engineering Vibration,2004,24(2):19-23.(in Chinese)
[5] Boore D M. Stochastic simulation of high-frequency ground motions based on seismological models of the radiated spectra[J].BSSA,1983,73(6): 1865-1894.
[6] Irikura K,Kamae K,Dalguer L A.Source model for simulating ground motion during the 1999 Chi-Chi earthquake[J].EEES,2000,2(2):1-14.
[7] 刘启方.近断层强地震动预测的一些基本问题讨论[J]. 世界地震工程,2006,24(3):94-100. LIU Qifang.Discussion of some basic problems on predication of near-fault strong motion[J].World Earthquake Engineering,2006,24(3):94-100.(in Chinese)
[8] 甘 杨,李 凡,李大华.一维土层非线性地震反应分析的解析递推格式法[J].吉林大学学报:地球科学版,2006,35(4):631-635. GAN Yang,LI Fan,LI Dahua.Analytical recursion scheme method of the nonlinear earthquake response analysis of one-dimension soil layer[J].Journal of Jilin University(Earth Science Edition),2006,35(4):631-635.(in Chinese)

相似文献/References:

[1]张聪,佐藤忠信,吕令毅.地震动群延时不确定性对反应谱的影响研究[J].地震工程与工程振动,2012,(02):054.
 ZHANG Cong,Tadanobu SATO,LV Lingyi.Study on influence of earthquake GDT uncertainty on response spectra[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2012,(02):054.
[2]徐龙军,何晓云,谢礼立.海上风电工程基础结构抗震性能研究[J].地震工程与工程振动,2012,(03):001.
 XU Longjun,HE Xiaoyun,XIE Lili.On seismic performance of offshore wind turbine foundation and structures[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2012,(02):001.
[3]胥润东,郑凯锋.相关多点地震动合成HOP方法的分析与改进[J].地震工程与工程振动,2010,(02):009.
 XU Rundong,ZHENG Kaifeng.Analysis and improvement of simulation method for spatially correlative time histories of multi-point ground motions[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2010,(02):009.
[4]李启成,景立平.经验格林函数方法的理论探讨[J].地震工程与工程振动,2010,(03):039.
 LI Qicheng,JING Liping.Discussion about theory of empirical Green’s function[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2010,(02):039.
[5]孙有为,薄景山,李平,等.地震对地下硐室围岩动压力的影响[J].地震工程与工程振动,2010,(03):171.
 SUN Youwei,BO Jingshan,LI Ping,et al.Influence of earthquake on rock dynamic pressure of underground chambers[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2010,(02):171.
[6]梁建文,李帆,刘中宪.地铁隧道群对地震动的放大作用[J].地震工程与工程振动,2011,(02):031.
 LIANG Jianwen,LI Fan,LIU Zhongxian.Amplification of ground motion by metro tunnel group[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2011,(02):031.
[7]彭勇波,李杰.相位演化零点时间与地震动模拟研究[J].地震工程与工程振动,2011,(04):158.
 PENG Yongbo,LI Jie.Investigation on starting-time of phase evolution and simulation of earthquake ground motions[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2011,(02):158.
[8]陈龙伟,袁晓铭,李雨润.土体弱化等级及其与地震动关联性初探[J].地震工程与工程振动,2013,04(01):172.
 CHEN Longwei,YUAN Xiaoming,LI Yurun.Classification of subsoil softening and preliminary analysis of its correlation with ground motion characteristics[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2013,04(02):172.
[9]董银峰,李英民,赖明,等.基于EMD和VARMA模型的地震动仿真[J].地震工程与工程振动,2007,(03):015.
 DONG Yinfeng,LI Yingmin,LAI Ming,et al.Simulation of earthquake ground motions by using EMD and VARMA model[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2007,(02):015.
[10]王祥建,崔杰.一种迭代算法在结构物理参数识别中的应用[J].地震工程与工程振动,2008,(01):044.
 WANG Xiangjian,CUI Jie.An iterative algorithm applied to structural physical parameter identification[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2008,(02):044.

备注/Memo

备注/Memo:
收稿日期:2011-7-20;改回日期:2011-8-20。
基金项目:国家发展计划委员会"十五"重点项目(20041138147)
作者简介:盛 俭(1979-),男,博士,主要从事地震灾害、地震地质及地质灾害方向研究.E-mail:sj2984@sina.com
更新日期/Last Update: 1900-01-01