一种考虑纵向连接间隙的带式浮桥变位计算方法  

A Method to Calculate the Displacement of Loading Ribbon Floating Bridge Considering Longitudinal Joint Gaps

作　　者：杜乃娟[1] 沈庆[1] 陈徐均[1] 孙勇[1] 

机构地区：[1]解放军理工大学工程兵工程学院

出　　处：《公路交通科技》2005年第11期119-122,共4页Journal of Highway and Transportation Research and Development

摘　　要：传统的带式浮桥变位的计算都是采用弹性地基梁的方法进行的,舟单元法中有类似算法。本文利用组成浮桥的多个舟体的平衡条件进行求解,并且在平衡方程中考虑了间隙闭合对浮桥变位的影响,编制了相应的求解程序,通过将文中算例与实测结果相比较,验证了该方法正确可行。Commonly, the vertical displacement of ribbon floating bridge is calculated based on the elastic base beam theory and there＇ s an analogous algorithm in boat element method. In this paper, the calculation is made using the equilibrium condition of pontoons building up the floating bridge and the influence of gaps between the pontoons is considered in static equilibrium equations. In the end of the paper, a program is worked out and its creditability and feasibility are verified by an example.

关 键 词：浮桥结构分析 连接间隙 带式浮桥 浮箱桥 

分 类 号：U448.19[建筑科学—桥梁与隧道工程]