摘要
为研究含软弱夹层场地土的地震动参数特性和设计反应谱的确定方法,在1个典型场地剖面的基础上,另外构造了2个剖面。利用一维等效线性化方法,计算了3个剖面的地震动参数,确定了场地相关反应谱标准谱,分析了软弱土层对场地相关反应谱的影响。通过与另外两个剖面场地相关反应谱和2010规范谱的比较,最后给出了含软弱夹层土典型场地设计反应谱的建议:小震按照典型场地场地相关标准谱;大震和中震的短周期段按照2010规范谱,长周期段按照场地相关标准谱。
To study ground motion parameters character and determing method of design response spectrum of typical sites with soft interlayer, based on one typical engineering site profile, two other site profiles were built. Ground motion parameters of the three site profiles were calculated, the related normal response spectra of the sites were determined and the influence of soft soil layer on related response spectra was analyzed through the one-dimensional equivalent linearization. Comparing to site-related design spectrum of the other two profiles and 2010 Code spectrum, the proposals on design spectrum of the typical site with soft interlayer are given： with regard to the small earth- quake, the design spectrum should comply with site-related design spectrum of typical site; to the moderate and strong motion, the short period segment of design spectrum should comply with 2010 Code design spectrum and the long period segment of design spectrum should comply with site -related normal design spectrum.
出处
《世界地震工程》
CSCD
北大核心
2016年第2期139-146,共8页
World Earthquake Engineering
基金
地震科技星火计划攻关项目(XH15058)
关键词
软弱夹层
地震动参数
场地相关反应谱
设计反应谱
soft interlayer
ground motion parameters
site-related response spectrum
design spectrum
作者简介
王冲（1981-），男，工程师，主要从事岩土工程抗震减灾研究．E—mail：Wchong19816@126．com
