桥梁支座安装完成后是否就高忱无忧了？衡水振瑞橡胶制品有限公司技术总监，为您做以下权威解答：在桥梁支座安装完成后，桥梁施工过程中要重视对桥梁支座的检查和养护。由于桥梁支座位置较为特殊，在后期养护过程中容易被忽略，因此要养成定期检查、定期养护的习惯，制定桥梁支座养护管理制度，定期更换变形、老化、遭受破坏的橡胶支座，定期清扫杂物，确保橡胶支座可以自由活动。通过实施定期检查和养护，确保桥梁支座处于良好工作状态，从而延长桥梁整体使用寿命。
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.
在桥梁支座施工过程中，要严格按照施工设计图纸进行施工，在支座定位时要进行测量，确保支座安装位置正确。对垫石顶高程进行控制，同时要对梁底的平整度进行管控，避免梁底和支座顶部出现脱空现象。一旦出现这种现象，不可用水泥砂浆或塞钢板等方式进行找平，梁底平整度偏差过大时，应凿除梁底表面混凝土，重新浇筑同标号的混凝土或环氧砂浆。不得随意进行支座替换，不得将四氟滑板支座替换普通橡胶支座，亦不得用普通橡胶支座替换四氟滑板支座。
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.
桥梁支座安装时垫石顶面应划十字刻线，准确定位支座位置，防止支座出现偏压;垫石顶面砂浆不应进行抹光处理，防止垫石与支座之间产生滑移。预制梁板安装时，落梁要缓慢、平稳、准确，防止支座偏心受压或者产生初始的剪切应力。在桥梁梁体起吊之后，要及时对桥梁梁底杂物进行清除，确保桥梁橡胶支座安装不会出现偏位现象。待桥梁板梁吊装完成后，要及时检查梁体和支座的贴合情况，要将桥梁和梁底的缝隙控制在0.3mm以内，间隙的总面积不能高于支座面的1/5。如果施工过程中支座出现翻浆冒泥现象，要及时排除污水和雨水，防治雨水长期浸泡。
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.
