反向芬克式桁架桥结构体系及设计参数分析  

Analysis of Structural System and Design Parameters of Inverted Fink Truss Bridge

作　　者：徐利超 邵福彪 陈乐 XU Lichao;SHAO Fubiao;CHEN Le(Department of Bridge Engineering,Tongji University,Shanghai 200092,China;Hangzhou Linkong Construction Investment Group Co.,Ltd.,Hangzhou 311227,China;Schlaich Bergermann Partner SBP SE,Shanghai 200031,China)

机构地区：[1]同济大学桥梁工程系,上海200092 [2]杭州市临空建投集团,杭州311227 [3]施莱希工程设计咨询(上海)有限公司,上海200031

出　　处：《结构工程师》2025年第1期17-24,共8页Structural Engineers

基　　金：国家自然科学基金(52078367)。

摘　　要：反向芬克式桁架桥是一种最先出现在英国的索辅梁桥,结构体系新颖,近十年来在城市景观人行桥梁建设中的应用逐渐增加。该结构体系与斜拉桥、悬索桥等典型索辅梁体系存在显著差异,主要设计参数对其结构性能的影响规律尚不明晰。本文首先介绍了反向芬克式桁架结构的发展情况。接着,以某新建不均匀塔高反向芬克式桁架桥为对象,采用有限元数值模拟的方法对索辅梁结构中关键的塔高及拉索等结构参数开展了分析,总结了这些参数对结构性能的影响规律,提出了此类结构体系进行刚度优化的可行方向。研究成果可为不均匀塔高反向芬克式桁架桥的结构设计提供依据。The inverted Fink truss bridge,a novel structural system first appearing in the United Kingdom,has seen a gradual increase in its application in urban landscape pedestrian bridge construction over the past decade.This system presents significant differences from typical cable-assisted beam systems such as cable-stayed and suspension bridges,with the main design parameters'influence on structural performance remaining unclear.This paper first introduces the development of the inverted Fink truss structure.Subsequently,it focuses on a newly constructed inverted Fink truss bridge with uneven tower heights,employing finite element numerical simulation to analyze critical structural parameters such as tower height and cable tension within the cable-assisted beam structure.It summarizes the influence patterns of these parameters on structural performance and proposes feasible directions for stiffness optimization of such structural systems.The findings of this study provide a basis for the structural design of inverted Fink truss bridges with uneven tower heights.

关 键 词：反向芬克式桁架桥 索辅梁体系 设计参数 结构性能 

分 类 号：TU997[建筑科学—市政工程]