摘要
斜拉 -悬索协作体系桥作为一种新的超大跨径桥型 ,综合了悬索桥和斜拉桥的特点 ,国内外对这种桥型的研究尚少。本文根据空间有限元计算模型 ,对伶仃东航道斜拉 -悬索协作体系桥设计方案进行了模态分析 ,分析了斜拉 -悬吊协作体系桥的固有特性 ,讨论了不同主梁纵向约束方式和辅助墩的设置情况的影响 。
As a new super\|long\|span cable\|supported bridge type, the cable\|stayed\|suspension bridges synthesize the characteristics of cable\|stayed bridges and suspension bridges. On the base of spatial finite element modal, the modal analyses results of the Lindin East Sea\|route cable\|stayed suspension bridge design project is obtained. The inherent vibration characteristics of cable\|stayed\|suspension cooperation system and the influence of longitudinal restraint conditions in main girder and assistant pier setting. The results can provide theoretic reference for the dynamic analyses of the cable\|stayed\|suspension cooperation system.
出处
《计算力学学报》
CAS
CSCD
北大核心
2002年第4期472-476,493,共6页
Chinese Journal of Computational Mechanics
基金
国家自然科学基金重大资助项目 (5 9895 410 )
