【摘要】 如何将箱形拱桥进行有效的加固改造,提高其承载能力,改善交通环境,已成为交通行业亟待解决的一个问题.以湖北郧县响水大桥的加固改造为研究背景,对大桥现有状况进行检测和试验研究.在此基础上,通过有限元建模与计算,分析了大跨度箱形拱桥的横向联系需要加强的原因.更多还原

【Abstract】 With the increase of traffic flow and the rise of load levels, the insufficiency of lateral contact and other defects existing in many large span trunk arch bridges can no longer meet the need of modern communications development. It is an urgent and practical work to consolidate these bridges, to enlarge their supporting capacity and to improve the traffic environment. On the background of Xiangshui bridge consolidation project in Yuxian county in Hubei provice, the author carries out examinations and experiments on original state of the bridge. Based on data obtained therein and through FEM model and calculations, the author analyzes the reasons of consolidating the lateral contact of large span trunk arch bridges.更多还原