摘要
本文依据现行铁路桥梁设计规范,应用有限单元法及桥梁结构设计和结构优化设计原理,研究了铁路拱桥拱圈优化设计数学模型及其求解方法,通过电算得到与跨度、矢跨比及工程材料性质相关的实腹拱桥拱圈优化设计参数 m~*、n~*和h_d~*曲线,使设计者可直接从曲线中得到较理想的设计参数。
By using the finite element method and the principles of bridge de-sign,mathemtical models for optimum design of railway arch bridges inaccordance to the current Bridge Codes have been proposed and studied.A number of arch bridges with different kinds of common buildingmateriales,lengthes as well as ratios of rise to length were analyzed andtheir optimal design parameters have been obtained.According to theoptimum design parameter curves which were drawn with the obtainedparameters,designers will easily make a optimum arch project.
出处
《兰州铁道学院学报》
1992年第4期10-23,共14页
Journal of Lanzhou Railway University
关键词
曲线表
拱桥
最优设计
arch bridge
optimum design
optimum methods
design parameters
optimum design curves
