波浪力作用下钢管桩施工平台随机动力响应分析  

Random dynamic response analysis on steel-pipe pile construction platform based on wave force

作　　者：居艮国[1] 吕风梧[1] 王彬 

机构地区：[1]同济大学土木工程学院,上海200092 [2]南通中天江东置业有限公司,江苏南通226007

出　　处：《铁道科学与工程学报》2006年第5期70-74,共5页Journal of Railway Science and Engineering

基　　金：高等学校博士学科点专项科研基金资助项目(2000024712)

摘　　要：采用有限元分析程序提取了平台的各阶自振频率,以有效模态质量参与系数作为模态选择的依据,对随机波浪力作用下考虑结构与水耦合的的动力响应进行计算,并分析了附连水质量及动水阻尼对结构随机动力响应的影响。通过施工平台静、动力计算结果的比较,建议在进行施工平台的设计时,应充分考虑到波浪力的动力效应。Finite element programming was used in different frequencies and the modal selection was made according to effective modal participation ratio. The calculated dynamic responses was considered to the couple of structure and water in the action of wave force. The influence of the hydrodynamic damp and additional water mass on the random dynamic response was analyzed. The calculation results of static and dynamic were compared. The results show that the dynamic influence of the wave force should be considered during designing construction platform.

关 键 词：施工平台 波浪力 功率谱密度 动水阻尼 附连水质量 

分 类 号：TU473.13[建筑科学—结构工程]