摘要
本文从171次地震3462组三分量地震记录中选出设防烈度7度及7度以上的数据,从定量的角度研究竖向地震标准设计反应谱曲线。基于实震记录转化的竖向地震反应谱曲线,采用三种方法进行标准曲线拟合,分析地面运动强度、震级、震中距对特征参数取值的影响。经不同拟合方法的对比分析,综合考虑各个因素的作用,最终给出特征参数的建议取值,为现行抗震规范的修订提供依据。
Based on 3462 records of three-component seismograms from 171 earthquakes,this paper chooses the data of 7 and 7 degrees earthquake intensity above. On the basis of that data,this paper analyses vertical response spectrum from the perspective of quantitative. The vertical response spectrums are transformed by the actual earthquake records,this paper fits the standard response spectrum curve through three methods and analyzes the effect of ground motion intensity,earthquake magnitude,and epicentral distance on the characteristic parameters. By comparing analyzing different fitting methods and considering the effect of various factors,this paper gives some advices on the characteristic parameters aiming to provide theoretical basis for the current seismic design codes.
出处
《工程抗震与加固改造》
北大核心
2016年第5期44-49,共6页
Earthquake Resistant Engineering and Retrofitting
基金
中国建筑科学研究院青年基金(20150122331030058)
关键词
竖向地震反应谱
拟合分析
特征参数
vertical response spectrum
fitting analysis
the characteristic parameters
