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系杆拱的近似基频公式
Approximate method for calculating the fundamental frequency of arch bridges with longitudinal tension girders
【摘要】 按能量法原理推导建立了系杆拱基频的近似计算公式.与有限元计算结果相比,本文导出的近似公式具有工程设计所需的足够精度.
【Abstract】 By using the energy method. an approximate method for calculating the frequencyof arch bridges with longitudinal tension girders was presented. Comparison with results given by the finite element method shows the proposed approximate method has enough accuracy for practical purposes.
【关键词】 系杆拱;
能量法;
近似基频公式;
【Key words】 arch bridges with longitudinal tension girdrers; approximate formula for fundamental frequency;
【Key words】 arch bridges with longitudinal tension girdrers; approximate formula for fundamental frequency;
- 【文献出处】 兰州铁道学院学报 ,JOURNAL OF LANZHOU RAILWAY INSTITUTE , 编辑部邮箱 ,1999年05期
- 【分类号】U441.5
- 【被引频次】11
- 【下载频次】95