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随着我国高速铁路的迅速发展,交通枢纽快速建设,跨路预应力混凝土梁桥的不断增多,与其相关的大跨度连续箱梁悬臂施工理论与实践日益受到关注,特别受一些特殊环境、特殊地段外界等诸多因素的影响,设计新理论、新技术也层出不穷。根据工程实例对津秦客运专线中大跨连续梁中的阻尼器安装运用进行研讨,希望对以后阻尼器工程施工在混凝土收缩徐变、二期荷载等外力作用下准确定位安装能起到借鉴作用。
With the rapid development of China’s high-speed railway, the rapid construction of transportation hubs and the increasing number of prestressed concrete girder bridges, the theory and practice of cantilever construction of long-span continuous box girders related to it have drawn increasing attention. Particularly, some special circumstances, The outside world and many other factors, the design of new theories, new technologies are also emerging. According to the engineering example, the damper installation and application in the long-span continuous beam of the Jin-Qin Passenger Dedicated Line is discussed. It is hoped that the damper construction can be used as a reference for accurate positioning and installation under the external force of concrete shrinkage and creep and the second load.