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北岸线公路是皂市库区石门县移民复建的干线公路之一,三岔溪桥为整条北岸线公路上工程规模最大的桥梁,其施工图设计完成时间为2004年5月,而交通部在2004年10月颁布实施了新的桥涵设计规范,桥梁施工时正处于公路行业新旧桥梁规范实施的过渡期,因此三岔溪桥连续刚构采用新旧桥梁设计规范计算值进行了对比,通过对比分析,在不改变原设计的情况下,提出了基本符合新规范要求的工程措施,并对今后桥梁建成后的运营管理提出了建议。
North Shoreline Highway is one of the major trunk roads for the resettlement of Shihmen County in the soap city’s reservoir area. Sanchaxi Bridge is the largest bridge for construction on the entire North Coast Line. The construction plan was completed in May 2004, while the traffic Ministry promulgated a new code for design of bridges and culverts in October 2004. The bridge construction is in the transitional period of the implementation of the new and old bridges in the highway industry. Therefore, the comparison of the calculated values of the new and old bridges’ Comparative analysis, without changing the original design of the case, put forward basically meet the requirements of the new norms of engineering measures, and the future construction of the bridge after the operation and management made recommendations.