钢管桩动力响应试验研究  

A Study on In-Situ Dynamic Response Tests on Steel Pipe Pile

作　　者：朱照清[1] 龚维明[1] 戴国亮[1] 

机构地区：[1]东南大学,南京市210096

出　　处：《公路》2010年第3期78-82,共5页Highway

基　　金：国家科技支撑计划课题项目;项目编号2008BAG07B01;江苏省自然科学基金;项目编号BK2007114;江苏省自然科学基金;项目编号BK2008315

摘　　要：对东海大桥附近海上风电场钢管桩基础在波浪作用下的动态反应进行了原位测试,通过放置在桩顶的加速度传感器测得桩顶的加速度时程曲线,将加速度进行二次积分得到桩顶的位移。对比实测结果,涨潮期间所测得的桩顶位移大于平潮期。运用Morison方程计算出桩身所受的波浪力,采用m法对桩身的变形进行计算,所得结果小于现场实测值。The in-situ dynamic response tests are conducted on large-diameter steel pipe pile in the sea near Donghai Bridge. The accelerometers are put on the top of the pile to record the acceleration versus time data. The displacement of the top of the pile is obtained through quadratic integral to the acceleration signal. The test results show that the displacement of the pile top tested during the flood tide is more than during the flood slack. The Morison equation is used to calculate the wave force on the pile. The deformation of the pile is calculated by the m method. And the result is less than the in-situ test.

关 键 词：钢管桩 动力响应 Morison方程 M法 

分 类 号：U443.159[建筑科学—桥梁与隧道工程]