摘要
由于海洋工程中的钢管桩具有直径大、桩壁薄和超长的特点,桩的自由站立稳定性分析是桩基设计的重要组成部分。结合海洋工程的设计实例,借助三维非线性有限元分析方法,考虑桩身变形的几何非线性特性,研究了桩身倾斜度、支撑情况以及水平荷载等因素对桩身自由站立稳定性的影响规律,并将线性分析方法和非线性分析方法得到的结果进行了比较。
In ocean engineering, many large-diameter, thin-wall and deep-penetration piles have been adopted for constructing offshore platforms. Pile stick-up stability analysis plays an important role in pile foundation design. Numerical stimulation analysis for stability of pile stickup with geometrical nonlinear 3-D finite element method in pile foundations of ocean platforms is performed. The influences of nonlinear behavior, the inclination of piles, the length of pile stick-up, the support type and the horizontal force on the stability of pile stick-up are studied. A practical project has been analyzed using the proposed approach.
出处
《海洋工程》
CSCD
北大核心
2006年第3期6-13,共8页
The Ocean Engineering
基金
国家高科技发展计划(863)资助项目(2004AA616100)
国家自然科学基金资助项目(5000349009)
