桥梁支座更换施工是一项复杂的工程。它包括技术保障措施、安全保障措施以及人员和机械设备的合理安排。尤其在重要交通路线上不中断交通进行支座更换已成为我国桥梁养护维修工作的重点研究对象。以南坳田大桥为例,介绍施工控制技术和方法,以及对梁体同步顶升施工的控制。 Bridge bearing replacement construction is a complex project. It includes technical safeguards, safeguards and reasonable arrangements for personnel and machinery. In particular, it is the key research object of bridge maintenance and repair work in our country to carry out bearing replacement without interruption of traffic on important traffic routes. Take Nan Auita Bridge as an example, this paper introduces the construction control technology and method, and the control of the synchronous lifting construction of the beam body.