桥梁支座在整个桥梁结构中对桥梁墩台的受力状态和梁的水平位移、转角起着十分重要的作用,其性能的好坏直接影响到桥梁的使用效果与寿命。文章对由于施工原因所造成的支座脱空,以及在桥梁的运营过程中所产生的支座破坏原因进行了分析,并提出了针对性的预防措施,分析了全桥支座的受力状态,对桥梁支座更换进行了探讨。文章对新建桥梁的支座施工以及桥梁在运营过程中的支座维修和养护有一定的参考价值。 Bridge bearing in the whole bridge structure on the bridge abutments of the state of force and horizontal displacement of the beam, the angle plays a very important role in the performance of a direct impact on the use of bridges and life expectancy. The paper analyzes the causes of the bearing vacancy caused by the construction reasons and the causes of the bearing damage during the operation of the bridge, and puts forward the targeted preventive measures. The stress state of the bearing of the full bridge is analyzed , On the bridge bearing replacement was discussed. The article has certain reference value to the bearing construction of the new bridge and the support and maintenance of the bridge during the operation.