铁路悬索桥的刚度问题探讨性研究

摘要

对铁路悬索桥较为合理实用的刚度指标体系做了调研分析，并按照建议的刚度指标，对悬索桥的边中跨比、垂跨比、高跨比、宽跨比等参数做了对比分析，总结提出了适合铁路悬索桥的一些设计参数，最后简单介绍了不同结构体系悬索桥对结构刚度的贡献及存在的问题，以供参考借鉴。%The thesis analyzes rational rigidity indicator system of the railway suspension bridge,comparatively analyzes its lateral-span ration, vertical-span ration,height-span ration and width-span ratio and other parameters according to suggested rigidity indicators,summarizes some design parameters fitting to railway suspension bridge,and finally introduces contributions of various suspension bridge system upon structural ri-gidity and existing problems,with a view to provide some guidance.