摘要
利用ABAQUS有限元软件建立大直径圆筒结构数值分析模型,研究单向实测地震波作用下大直径圆筒结构动力响应,得出如下结论:筒外土体沿地震波传递方向位移变化最大,筒底附近应力最大且最先出现塑性破坏;筒内土体在自由端位移变化最大,地震波最大峰值过后筒体与筒内土体出现反复脱离、滑移和黏合现象;筒体在自由端位移变化最大,筒体底部应力最大,而且有较大的环向弯矩。研究成果可为沉入式大直径圆筒结构设计提供理论依据。
By conducting the numerical model of large - diameter cylinder structure by using the finite element analyzing software ABAQUS, the response of the large diameter cylindrical structure with actual seismic waves is studied. It is concluded that the largest displacement of the soil outside takes place along with the spread direction of the seismic waves, and the strongest mises, plastic damage nearby the bottom of the structure, in addition, the largest displacement of the soil inside is on the top. The structure and soil inside are separated, slipped from each other and then felted after the peak of the waves. There is also the largest displacement on the top of the structure and the strongest mises,hoop moment at the bottom. The study is helpful for some related design.
出处
《港口科技》
2009年第6期17-21,共5页
Port Science & Technology
关键词
大直径
圆筒结构
地震响应
分析
large diameter cylindrical structure seismic response analysis
