摘要
在钢结构中采用预加应力的方法，可以提高承载力、减轻自重、节约钢材、降低造价。文中介绍了预应力钢桁梁主桁设计的方法与步骤，编制了一套相应的设计计算程序来实现这一过程。
The application of prestressing in steel structures can improve the load bearing capacity, decrease the weight,save the steels, and reduce the cost. The design method and procedures of prestressed truss in railway bridges are discussed. A program to perform the corresponding calculation has been written, and used to analyse the main trusses with a single straight tendon and with double straight tendons respectively.
出处
《西南交通大学学报》
EI
CSCD
北大核心
1997年第4期357-362,共6页
Journal of Southwest Jiaotong University
关键词
铁路桥
钢桥
预应力钢桁梁
railway bridges
steel bridges
prestressed steel truss
