结构工程师2025，Vol.41Issue(3)：24-32,9.DOI:10.15935/j.cnki.jggcs.202503.0004
索塔高度对超低边中跨比混合梁斜拉桥体系力学性能的影响
Study on Effect of Cable-Stayed Tower Height on Mechanical Performance of Cable-Stayed Bridges with Small Side-to-Middle-Span Ratios System
摘要
Abstract
The cable-stayed tower is the key to the design of cable-stayed bridges.However,for ultra-low-side mid-span ratio hybrid girder cable-stayed bridges,its force form has unique characteristics.In order to clarify the effect of height of the cable-stayed tower on the hybrid girder cable-stayed bridge system,parametric finite element analysis is carried out in this study.This study has investigated the rule of the influence of the height of the cable-stayed tower on the stress performance of the cable-stayed bridge with small side-to-middle-span ratios.The study shows that with the increase in the height of the cable tower,the stress performance of main span steel girders,towers,and cable-stayed cables have improved.However,the stress performance of the concrete main girders at the side spans are not affected with the increase in the height of the cable tower.In addition,the stability coefficient of cable-stayed bridges increases and then decreases with the increase in the height of the cable tower.关键词
斜拉桥/钢混混合梁/有限元/索塔高度/体系分析Key words
cable-stayed bridge/hybrid beam/finite element/height of tower/analysis of system forces分类
建筑与水利引用本文复制引用
林志平,张国萱,许晟,苏庆田..索塔高度对超低边中跨比混合梁斜拉桥体系力学性能的影响[J].结构工程师,2025,41(3):24-32,9.基金项目
福建省交通运输科技项目(202126) （202126）
