After the installation of bridge bearings is completed, attention should be paid to the inspection and maintenance of bridge bearings in the process of bridge construction. Because of the special location of bridge support, it is easy to be neglected in the later maintenance process. Therefore, it is necessary to develop the habit of regular inspection and regular maintenance, formulate the maintenance management system of bridge support, regularly replace the deformed, aged and damaged rubber support, regularly clean up debris, and ensure that rubber support can move freely. Through the implementation of regular inspection and maintenance, to ensure that the bridge bearings are in good working condition, thereby prolonging the overall service life of the bridge.
During the construction of bridge bearings, construction should be carried out strictly in accordance with the construction design drawings, and precise measurement should be carried out when the bearings are positioned to ensure the correct installation position of the bearings. The height of cushion top should be controlled, and the flatness of beam bottom should be controlled to avoid the void phenomenon at the bottom of beam and the top of support. Once this phenomenon occurs, it should not be leveled by cement mortar or steel plug. When the flatness deviation of the bottom of the beam is too large, the surface concrete of the bottom of the beam should be chiseled out and the same label concrete or epoxy mortar should be re-poured. It is not allowed to replace bearings at will, nor to replace ordinary rubber bearings with tetrafluoro sliding plate bearings, nor to replace tetrafluoro sliding plate bearings with ordinary rubber bearings.
When installing bridge supports, the top surface of the cushion stone should be marked with cross lines to accurately locate the position of the cushion seat, so as to prevent the bias of the support; the top surface mortar of the cushion stone should not be polished to prevent the slippage between the cushion stone and the support. When prefabricated beams and slabs are installed, drop beams slowly, smoothly and accurately to prevent eccentric bearing compression or initial shear stress. After the lifting of the bridge girder, the debris at the bottom of the bridge girder should be removed in time to ensure that the support installation does not appear offset phenomenon. When the bridge slab-girder hoisting is completed, it is necessary to check the joint of the beam and the support in time. The gap between the support and the bottom of the beam should be controlled within 0.3 mm, and the total area of the gap should not be higher than 1/5 of the support surface. If slurry boiling and mud leaking occur in the support during construction, sewage and rainwater should be removed in time to prevent long-term immersion of rainwater.