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以溪工沟大桥为背景,采用通用型有限元软件Midas/Civil分析建模,按实际拟定的施工顺序对钢混拱桥缆索吊装过程进行施工模拟分析,主要对各施工阶段扣索索力、拱圈的内力以及拱圈线形进行研究分析,说明了施工的合理性。本文通过对大跨度钢筋混凝土箱型拱桥吊装施工技术难题的研究和成功应用,为同类型大跨度多节段拱桥的施工积累经验,从而具备更高的推广应用价值。
Taking the Xigonggou Bridge as a background, a general finite element software named Midas / Civil was used to analyze and simulate the construction process of the cable-stayed bridge. According to the actual construction sequence, The internal force and the arch ring linear research and analysis, indicating the rationality of construction. In this paper, through the research and successful application of the technical problems of hoisting construction of long-span reinforced concrete box arch bridge, the experience for the construction of the same type of large span multi-section arch bridge has higher application value.