地震动反应谱向功率谱转换的不同方法比较  

Comparison between different ways from seismic response spectrum transformed to power spectrum

作　　者：李江帆[1] 葛若东[1] 王艳富[1] 吕海波[1,2] 

机构地区：[1]广西大学土木建筑工程学院,广西南宁530004 [2]桂林理工大学土木与建筑工程学院,广西桂林541004

出　　处：《四川建筑科学研究》2012年第4期178-181,共4页Sichuan Building Science

基　　金：广西科学研究与技术开发计划项目(桂科攻0992027-9);广西建筑工程检测与试验重点实验室开放基金(桂科能07109005-A)

摘　　要：利用孙景江迭代法将抗震设计规范中的设计反应谱转换成功率谱,然后,再用近似转化公式将目标反应谱转化成功率谱,和迭代法转化成的功率谱进行比较。分析表明,采用迭代法求得的功率谱其精度要比采用近似转化公式好,但近似转化公式在高频段的精度也能满足计算要求。Response spectrum of code for seismic design of buildings was transformed to power spectrum by Sun iteration approach, then compared with another way which by using approximate conversion formula ,then analyzed the error between the two ways. It is pointed out that iteration approach has higher accuracy than approximate conversion formula, but the way used by approximate conversion formula could satisfy to demand for accuracy in high frequency band.

关 键 词：反应谱 功率谱 误差 高频段 

分 类 号：TU352.1[建筑科学—结构工程]