【作者】 张超； 房贞政；

【Author】 Zhang Chao Fang Zhenzheng (College of Civil Engineering,Fuzhou University,Fuzhou,Fujian 350002,China)

【机构】 福州大学土木工程学院；

【摘要】 以某独塔自锚式悬索桥为工程背景,介绍建立空间有限元模型基本思路。采用ANSYS进行模态分析,比较独塔自锚式悬索桥及相应的地锚式悬索桥动力特性的异同。最后讨论了恒载、主梁刚度、缆索刚度、桥塔刚度等主要结构参数对自锚式悬索桥动力特性的影响规律。更多还原

【Abstract】 Based on a self-anchored suspension bridge with single tower,the ideas for establishing finite element model was introduced.Modal analysis with ANSYS software was proceeded to coMPare the dynamic performance of the self-anchored suspension bridge to a similar earth-anchored suspension bridge.At last,the rule of main structure parameters influencing on dynamic performance was studied,such as dead Loads、cable stiffness、girder stiffness、tower stiffness.更多还原