再谈“无梁异形板桥”的设计和计算  

Restudy on the Design and Calculation of Irregular Shaped Slab Bridge

作　　者：沈中治[1] 

机构地区：[1]北京市市政工程设计研究总院,100082

出　　处：《特种结构》2013年第3期6-12,26,共8页Special Structures

摘　　要：本文就无梁异形板桥的某些设计问题作了介绍,主要是两方面的内容:一是针对异形板的计算问题,为方便使用修改了部分计算公式,并对配筋弯矩公式做了周密的推导;二是对设计实践中的一些经验作出总结,包括:指出了异形板设计中板顶应该探讨的问题,并针对异形板桥事故如何吸取教训,以及地铁通过异形板桥时的安全对策等等进行了讨论。文章是笔者近年在审图、审稿、咨询工作中的一些体会,也是对以往同类设计的一个补充。The resolutions for two often asked questions in irregular shaped slab design are introduced in this paper. Firstly, the flexural formula of the reinforced members is derived for more convenient application. Secondly, several points are proposed based on experiment in design, such as questions discussed on roof design, lessons learned in the structure failures and solutions of safe problems caused by subway. This paper can be a supplement based on former studies and also is derived from long time supervision work of the author.

关 键 词：无梁异形板 三弯矩公式 钢-混凝土结合板 临时支顶 永久脱换 

分 类 号：TU375.2[建筑科学—结构工程]