桂林理工大学学报2025，Vol.45Issue(2)：213-220,8.DOI:10.3969/j.issn.1674-9057.2025.02.009
一种提高刚架拱桥刚度的方法及其应用
A method for improving stiffness of rigid frame arch bridge and its application
摘要
Abstract
To improve the rigidity of rigid-frame arch bridges,this study proposes a reinforcement method-the plate-truss composite strengthening technique,which involves adding steel trusses to the rigid-frame arches on both sides,re-laying the bridge deck steel bars,and newly pouring concrete on the original deck to form a plate-truss composite structure capable of resisting loads.A bridge in Liucheng County of Liuzhou is applied to Midas Civil.The mechanical properties of the structure before and after reinforcement are compared.Thus,the bridge is reinforced by the method.Through the load test,the deflection of the reinforced bridge under the load test and the impact coefficient under the barrier-free sports car test are measured.The results show that the rein-forcement method can greatly improve the structural stiffness.关键词
刚架拱桥/刚度/钢桁架/板桁组合结构加固法/荷载试验Key words
rigid-frame arch bridges/stiffness/steel truss/plate-truss composite structure/reinforcement method/load test分类
交通工程引用本文复制引用
邓声丙,谢肖礼..一种提高刚架拱桥刚度的方法及其应用[J].桂林理工大学学报,2025,45(2):213-220,8.基金项目
广西重点研发计划项目(桂科 AB18126047) （桂科 AB18126047）
