摘要
基于经典弹性理论判别等截面柱在均布荷载及风载作用下的一阶失稳模态,然后根据有限元方法,应用大型通用软件ANSYS,对连续刚构桥施工过程的高墩弹性稳定进行了分析,算得其失稳模态、失稳特征值以及临界荷载,比较了2种方法的分析结果;并且对连续刚构桥高墩的失稳安全储备给予一定建议。
Based on the classical elastic theories, the first-order buckling modal of a constant cross-section column was distinguished, with the effect of uniformly distributed load and wind load. Through the finite element method, high-pier elastic stabilization in the course of the construction of a continuous frame bridge was analyzed,and the buckling modal, the eigenvalue and the critical load were obtained. Comparing the results of the two methods mentioned above, recommendations of the high-pier buckling safety factor of continuous frame bridge were presented.
出处
《中南公路工程》
2006年第6期46-50,78,共6页
Central South Highway Engineering
关键词
连续刚构桥
高墩
施工过程
弹性稳定
分析
continuous frame bridge
high pier
construction procedure
elastic stability
analysis
