| 面向地震动记录和模拟地震动的工程随机地震动数据库研究 |
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| 引用本文： | 丁艳琼,李杰,彭勇波. 面向地震动记录和模拟地震动的工程随机地震动数据库研究[J]. 振动与冲击, 2021, 0(5): 143-148 |
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| 作者姓名： | 丁艳琼 李杰 彭勇波 |
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| 作者单位： | 西北农林科技大学水利与建筑工程学院;同济大学土木工程学院;同济大学土木工程防灾国家重点实验室;同济大学上海防灾救灾研究所 |
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| 基金项目： | 国家自然科学基金(52008339);中央高校基本科研业务费。 |
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| 摘 要： | 收集了来自156次地震的共计7 778条水平加速度记录.分别采用基于能量分布和震级-距离的地震动记录聚类分析方法,将7 778条水平加速度记录划分为12组,作为地震动记录数据库的基础数据.基于工程随机地震动的物理模型,采用窄带波群叠加方法合成了不同场地类别、震级和传播距离下的24组模拟地震动,包括100条每组的12个小...
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| 关 键 词： | 地震动记录 模拟地震动 数据库 聚类分析 窄带波群叠加 |
Engineering random ground motion database for recorded and simulated ground motions |
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| DING Yanqiong,LI Jie,PENG Yongbo. Engineering random ground motion database for recorded and simulated ground motions[J]. Journal of Vibration and Shock, 2021, 0(5): 143-148 |
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| Authors: | DING Yanqiong LI Jie PENG Yongbo |
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| Affiliation: | (College of Water Resources and Architectural Engineering,Northwest A&F University,Yangling 712100,China;College of Civil Engineering,Tongji University,Shanghai 200092,China;State Key Lab of Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China;Shanghai Institute of Disaster Prevention and Relief,Tongji University,Shanghai 200092,China) |
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| Abstract: | Here,a total of 7778 horizontal acceleration records from 156 earthquakes were collected.Based on the energy distribution and magnitude-distance cluster analysis method,7778 horizontal acceleration records were divided into 12 groups taken as the basic data of a ground motion record database.Based on the physical model of engineering random ground motion,24 groups of simulated ground motions with 12 small sample groups of 100 samples each group and 12 large sample groups of 300 samples each group,under different site types,magnitudes and propagation distances,were synthesized by using the narrow band wave groups superposition method.A total of 4800 simulated ground motion time histories were taken as the basic data of a simulated ground motion database.The database system of engineering random ground motion based on Windows system was developed by using the ground motion records after clustering and various groups of simulated ground motions to realize retrieval of ground motions,visualization of time histories,response spectra and related seismic information and data download. |
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| Keywords: | ground motion records simulated ground motion database cluster analysis superposition of narrow-band wave groups |
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