摘要
在全跨荷载作用下,对弦撑式索拱结构进行线性稳定分析,得到前三阶失稳模态。在此基础上对其进行弹塑性稳定分析,对比弦撑式索拱结构与纯拱结构的弹塑性屈曲路径、变形过程、失稳模式、失稳时的应力与变形、初始缺陷敏感性。研究表明弦撑式索拱结构各项性能均明显优于纯拱结构。
Under the influence of uniformly distributed load, by doing the linear stability analysis, we found the first three buckling mode. On the basis of the former analysis, through the elastic - plastic stability analysis, we contrast the buckling path, deformation process, buckling mode, stress and deformation and the initial defect sensitivity between the chord -supporting cable -arch structure and pure arch structure, which indicates that chord- supporting cable- arch structure surpass the pure arch structure.
出处
《佳木斯大学学报（自然科学版）》
CAS
2017年第1期1-5,共5页
Journal of Jiamusi University：Natural Science Edition
关键词
弦撑式索拱
线性稳定分析
屈曲路径
失稳模式
初始缺陷
chord -supporting cable -arch structure
linear stability analysis
buckling path
buckling mode
initial defect
