土木与环境工程学报（中英文）2025，Vol.47Issue(3)：201-209,9.DOI:10.11835/j.issn.2096-6717.2024.022
张力腿基础设计参数对大跨度浮式悬索桥行车动力响应的影响
Influence of the tension leg platform's design parameters on the dynamic response of a long-span floating suspension bridge under vehicle loading
摘要
Abstract
Construction schemes for long-span floating suspension bridges based on tension leg platforms have high application prospects in high water depth and soft soil environments.Due to their low foundation stiffness,vehicle loads may induce significant vibrations in bridges.This phenomenon can be mitigated by adjusting the parameters of the tension leg platform.So,there is limited research on this novel long-span floating bridge under vehicle loads.However,the feasibility and applicability of such schemes need validation.This paper utilized finite element software to compute the response of a floating suspension bridge model under the vehicle load.The effect of changes in the submerged depth and cable inclination angle on the response was investigated using methods such as modal analysis.The study revealed that adjusting the parameters of the submerged depth and cable inclination angle primarily alters the first two vibrational modes,significantly affecting the lateral responses.Increasing the submerged depth of the platform and adding inclined tension leg cables effectively reduced vibrations under the vehicle load.Additionally,the optimal modification of the cable inclination angle requires specific analysis.Therefore,during the design phase,the relevant tension leg platform design parameters are crucial for finding the most suitable configuration,which can enhance the overall feasibility and applicability of floating bridges under the vehicle load.关键词
浮式悬索桥/行车荷载/张力腿基础/设计参数/动力响应特性Key words
long-span floating suspension bridge/vehicle load/tension leg platform/design parameters/dynamic response characteristics分类
交通工程引用本文复制引用
白芷毓,魏凯,张枫,张择端..张力腿基础设计参数对大跨度浮式悬索桥行车动力响应的影响[J].土木与环境工程学报（中英文）,2025,47(3):201-209,9.基金项目
国家自然科学基金(52222804、52221002) National Natural Science Foundation of China(Nos.52222804,52221002) （52222804、52221002）
