埋地管线地震反应中日美规范对比研究  

Comparison of Buried Pipeline Seismic Response Analysis Methods Among Chinese,Japanese and American Codes

作　　者：傅俊[1] 孙千伟[1] 刘威[1,2] 

机构地区：[1]同济大学建筑工程系,上海200092 [2]同济大学土木工程防灾国家重点实验室,上海200092

出　　处：《结构工程师》2013年第3期85-92,共8页Structural Engineers

基　　金：国家"十二五"科技支撑计划课题(2011BAK02B04)

摘　　要：埋地管线地震反应简化计算方法主要有共同变位法和反应位移法。共同变位法假定地震波无衰减,管与土的应变相等;反应位移法则将地震波简化为正弦波形式,认为管土之间存在剪切滑动带,管线应变等于土体应变乘以变形传递系数。各国地下管线抗震规范主要也是基于上述两种方法计算管体应变和接头变形。其中,中国规范和日本规范主要是基于反应位移法,美国规范则是基于共同变位法。从以上方法的基本理论出发,分析了三国规范的异同点,并选取工程实例加以计算,进而比较了各国规范的优缺点。Two main methods to calculate buried pipeline seismic responses are the equivalent static method and the response displacement method. In the equivalent static method, the pipe and soil strain are assumed to be equal; while the displacement transmission parameter are considered in the response displacement method. In Chinese, Japanese and American codes, seismic responses of buried pipelines are mainly determined based on these two methods. In Chinese and Japanese codes, the analysis methods are based on the response dis- placement method; However, the American code is based on the equivalent static method. In this paper, the two basic methods are introduced firstly. The methods used in different codes are illustrated and compared. Fi-nally, through an engineering example, advantages and disadvantages of each code are discussed.

关 键 词：埋地管线 地震反应 接头变形 规范对比 

分 类 号：TU990.3[建筑科学—市政工程]