摘要
陆上软土地区和海上的一些构筑物,诸如塔桅结构、海洋平台等设计时水平荷载将起控制作用,在水平荷载作用下考虑群桩效应的桩-土-结构共同工作的研究是一个比较复杂的问题.依据文克尔相互作用模型,提出了一个较方便实用的群桩效应计算方法,根据等效桩的概念建立了考虑群桩效应的桩-土-结构共同工作的计算模型,通过编制计算程序进行了算例分析,结果表明考虑群桩效应后各桩的弯矩有较大幅度的增加,在设计以水平荷载为主的构筑物时应给予充分重视.计算模型和计算方法对该类构筑物的概念设计或初步设计具有一定的意义.
The horizontal load will be the key factor to the design of some special structures such as tower structures and offshore platform. The research, which considers the group effect of pilesoil-structure interaction under horizontal loading, is a complex subject, a lot of factors must be accounted. In this paper, a convenient and practical method based on Winkler model to evaluate the group effect is provided. A pile-soil-structure model considering the group effect is established, and a program system is presented to compute this model. Analytical result indicated that the moment of each pile increased obviously. The proposed calculation model and method in this paper is useful to the tentative design of such structures.
出处
《浙江工业大学学报》
CAS
2005年第4期434-437,441,共5页
Journal of Zhejiang University of Technology
基金
浙江省自然科学基金资助项目(502117)
关键词
水平荷载
等效桩
群桩效应
共同工作
horizontal loading
equivalent pile
effect of pile group
interaction of pile-soilstructure
