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对满足承载力要求的旧桥进行检测、评价、维修加固或拓宽改造现在已成为桥梁工程师迫切需要研究的技术问题。文章结合足尺实桥的加宽改造方案设计和结构计算,提出对普通钢筋混凝土桁架拱旧桥进行拓宽改造的技术方法。
Testing, evaluating, repairing, reinforcing or broadening the old bridge that meets the requirements of bearing capacity has now become a technical issue that bridge engineers urgently need to study. In this paper, combined with the design and structural calculation of widening and rebuilding of full-scale real bridge, a technical method of widening and rebuilding the old bridge of ordinary reinforced concrete truss arch is proposed.