【摘要】 针对国内第一个90米跨度大型索拱这一新型结构(吉林速滑馆悬索钢结构)进行稳定及抗震性能分析,分析结果表明:特征值屈曲分析结果不能作为评价本结构承载能力的依据;材料非线性对结构的承载能力影响很大,初始几何缺陷的影响不大,大变形对结构动力性能的影响不能忽略;反应谱法计算本结构地震作用会有较大的偏差,应采用时程分析法来分析地震作用;行波效应对本工程的影响不大。更多还原

【Abstract】 The stability and dynamic characteristic of cable-steel roof of Jilin speed skating gymnasium were analyzed. The results indicate that material nonlinearities exert a tremendous influence on the ultimate bearing capacity of the roof, and the influence of initial geometrical imperfections is small. The large-deflection effects on dynamic characteristic of the structure ought to be included. For the cable-steel roof structure, time-history analysis is suggested. And the wave passage effect on the roof may be negligible.更多还原