摘要
悬浮隧道直接处于水流作用的自然环境中,结构的响应问题应是关注的焦点。文章将悬浮隧道和支撑结构简化为空间梁系有限元模型,采用梁单元的CR列式法,在考虑水流与结构相互作用的条件下,概述了在水流作用下悬浮隧道系统的响应计算方法,计算分析了表面流速、隧道断面形式和支撑形式对悬浮隧道响应的影响。
The submerged floating tunnel （SFT） is situated directly in the natural environment subjected to the effect of current and the focus of attention should be paid on the responses of the tunnel and its support structures to the action of water flow. In this paper an SFT with its support structures is simplified into a finite element model of a spatial beam system. By employing beam element CR formulation and considering the interaction of the current and the structure a calculating method for the response of an SFT to the current action is established. The influences of the surface flow velocity, the form of tunnel＇s cross-section and the support structures on the responses of an SFT are analyzed.
出处
《现代隧道技术》
EI
北大核心
2005年第4期25-31,共7页
Modern Tunnelling Technology
关键词
悬浮隧道
响应
水流
Submerged floating tunnel
Response
Flow
