通过对中宁县石碱公路上跨包兰铁路立交转体桥的称重实验分析,在转体梁施工最重要的环节(转体梁施工称重平衡)开展工作。通过测试转动体部分的不平衡力矩、偏心距、摩阻力矩及摩擦系数等参数,实现桥梁转体的配重要求,为该桥转体施工的指挥和决策提供依据。也为类似转体桥梁的设计和施工积累经验和数据,达到进一步完善桥梁水平转体施工方法、提升企业施工技术能力的目的。 Through the weighing experimental analysis of the trans-Baotou-Lanzhou railway interchange on the Shi-Ning Highway in Zhongning County, the most important part of the construction of the swivel beam (weighing balance of swivel beam construction) is carried out. By testing parameters such as unbalanced torque, eccentricity, friction torque and friction coefficient of the rotating body part, the requirements of the weight of the bridge swivel body are provided, which provides the basis for the command and decision-making of the swivel body construction. But also accumulated experience and data for the design and construction of a similar swivel bridge so as to achieve the purpose of further improving the method of swivel construction at the bridge level and enhancing the technical capability of construction enterprises.