| 大跨度斜拉桥的抗震概念设计 |
| |
| 引用本文： | 闫冬,袁万城.大跨度斜拉桥的抗震概念设计[J].同济大学学报(自然科学版),2004,32(10):1344-1348. |
| |
| 作者姓名： | 闫冬 袁万城 |
| |
| 作者单位： | 同济大学,桥梁工程系,上海,200092 |
| |
| 基金项目： | 国家自然科学基金资助项目 ( 5 0 2 780 68)，上海市科技发展基金资助项目 ( 0 3QF14 0 5 2) |
| |
| 摘 要： | 基于斜拉桥的基本动态性能的分析 ,结合地震位移反应谱和加速度反应谱 ,并利用飘浮体系简化分析模型 ,从结构体系的设计中 ,提出了斜拉桥的抗震概念设计方法 .考虑通过改善桥塔结构形式 ,有效地控制桥塔和桥墩承担的地震力和上部结构的地震位移 .并通过对某桥梁工程进行抗震分析 ,提出了立体桥塔的抗震设计方案 ,并验证了改进方案可以在很大程度上提高超大跨度斜拉桥的抗震性能
|
| 关 键 词： | 斜拉桥 抗震 概念设计 |
| 文章编号： | 0253-374X(2004)10-1344-05 |
Conceptual Seismic Design for Long-span Cable-stayed Bridges |
| |
| YAN Dong,YUAN Wan-cheng.Conceptual Seismic Design for Long-span Cable-stayed Bridges[J].Journal of Tongji University(Natural Science),2004,32(10):1344-1348. |
| |
| Authors: | YAN Dong YUAN Wan-cheng |
| |
| Abstract: | Based on the basic dynamic preformance of cable-stayed bridges and combined with the displacement and acceleration response spectrums,some methods of conceptual design for long-span cable-stayed bridges with the simplified model of floating system are presented.To effectively control the seismic forces and displacements which are endured by the structure,based on the analysis of earthquake resistance for a cable stayed bridge,a spacial-type tower is suggested from the viewpoint of seismic design.The results indicates that the spacial tower could make a great improvement for the earthquake-resistant performance of long-span cable-stayed bridges. |
| |
| Keywords: | cable-stayed bridge earthquake-resistance conceptual design |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
