基于Kanai-Tajimi模型的重力坝随机地震分析

英文篇名：Random Seismic Analysis of Gravity Dam Based on Kanai-Tajimi Model
中文刊名：水力发电
英文刊名：Water Power
作者：贾超 ; 刘凯 ; 高凤
英文作者：JIA Chao1 ; LIU Kai2 ; GAO Feng1(1.School of Civil Engineering ; Shandong University ; Jinan 250061 ; Shandong ; China ; 2.Bureau of Public Roads of Zhanhua County ; Zhanhua 256800 ; Shandong ; China)
中文关键词：地震最大加速度 ; 功率谱强度 ; Kanai-Tajimi模型 ; 重力坝
英文关键词：maximum seismic acceleration ; power spectral intensity ; Kanai-Tajimi Model ; gravity dam
出版日期：2013-01-12
机构：山东大学土建与水利学院;山东省沾化县公路管理局;
年：2013
期：01
出版单位：水力发电

摘要

根据地震最大加速度和功率谱强度的关系,计算Kanai-Tajimi模型的加速度功率谱密度函数,并运用到重力坝随机地震分析中,得出关键部位的位移、应力、加速度及相应加速度响应功率谱曲线与大坝自振频率之间的关系,可为重力坝抗震设防提供参考依据。
According to the relationship between maximum seismic acceleration and power spectral intensity,the acceleration power spectral density function of Kanai-Tajimi Model is calculated and then introduced to the random seismic analysis of gravity dam.The displacements,stresses and accelerations of special dam locations and the relationships between corresponding acceleration response power spectrum and dam natural vibration frequency are obtain by the random seismic analysis.This study can provide a reference to the earthquake-resistance of gravity dams.

引文

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[2]DAVENPORT A G.Note on the Distribution of the Largest Value ofa Random Function with Application to Gust Loading[J].Proc.Inst.Civil Eng.,1963,8(28):187-196
[3]杜成斌,苏擎柱.混凝土坝地震动力损伤分析[J].工程力学,2003,5(20):170-173.