水道港口2016，Vol.37Issue(1)：81-88,8.
考虑桩土非线性作用的近海风机高桩平台地震响应分析
Seismic response analysis of high-pile platform of offshore wind turbine considering nonlinear pile-soil interaction
摘要
Abstract
Dynamic seismic response of piles had been studied through three-dimensional finite model of bat-ter pile platform and vertical pile platform. Inertial force of water had been taken into consideration to dynamic re-sponse. Correction coefficients of p-ycurves about piles including batter piles and vertical piles in different position were introduced to consider pile-soil vertical interaction. As for single piles, dynamic water pressure amplifies the moment and displacement of piles. Based on peak of displacement, time of peak displacement of different piles is the same, the capacity of pile with the same inclined direction with earthquake acceleration is optimal. As for piles under constraints of platform, dynamic water pressure amplifies less top displacement and the maximum moment of piles, the difference of moment and displacement among batter piles and vertical piles in different position is small. The peak of displacement of vertical pile is larger than those of batter piles. And the peak of moment under mud sur-face of batter piles is smaller but moment of pile at the interface between the pile and the platform is larger.关键词
高桩平台/海上风机/斜桩/p?y曲线/地震响应/动水压力Key words
high-pile platform/offshore wind turbine/batter piles/p-ycurve/seismic response/dynamic water pressure分类
建筑与水利引用本文复制引用
袁宇,黄挺,郑金海..考虑桩土非线性作用的近海风机高桩平台地震响应分析[J].水道港口,2016,37(1):81-88,8.基金项目
河海大学中央高校基本科研业务费项目(2014B04114) （2014B04114）
国家自然科学基金资助项目(51408185) （51408185）
江苏省自然科学基金资助项目(BK20130843) （BK20130843）
江苏省博士后科研资助计划资助项目(1302048B) （1302048B）
中国博士后科学基金资助项目(2014M561564) （2014M561564）
