|Table of Contents|

Dynamic Characteristic and Wind Resistance Behavior of High-pierLong-span Cable-stayed Bridge for Urban Rail Transit(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2010年04期
Page:
19-24
Research Field:
Publishing date:
2010-12-20

Info

Title:
Dynamic Characteristic and Wind Resistance Behavior of High-pierLong-span Cable-stayed Bridge for Urban Rail Transit
Author(s):
LI Yong-le;  DI Yue-long;  ZHAO Tong;  JIANG Xiao-wei
Department of Bridge Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China
Keywords:
long-span cable-stayed bridge;  dynamic characteristic;  multi-mode coupling vibration;  wind-induced response;  wind resistance behavior
PACS:
U448.27
DOI:
-
Abstract:
Taking the three schemes of high-pier long-span cable-stayed bridge for urban rail transit as the engineering background, the spatial finite element models were built respectively. The dynamic characteristics of the structures were calculated, and the natural frequencies and vibration mode characteristics were comparatively analyzed. Based on a self-developed bridge structure analysis software BANSYS, the stabilities of the structures under the static wind load were studied with the theory of two-dimensional flow field, meanwhile, the buffeting displacement and buffeting internal force induced by fluctuating wind of high-pier long-span cable-stayed bridge for urban rail transit were comparatively analyzed by using the multi-mode coupled vibration analysis method. Results show that the whole structure of the high-pier long-span cable-stayed bridge for urban rail transit is flexible; moreover, the differences of dynamic characteristics and wind-induced responses among the three schemes should not be neglected due to the discrepancy in structures.

References:

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Last Update: 2010-12-20