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施工注意事项：保持墩台垫石顶面清洁。如果支承垫石标高差距超过标准要求，必须用水泥砂浆进行标高调整。在支承垫石上按设计图标出中心，安装时橡胶支座的中心与支承垫石中心线要吻合，以确保支座就位准确。在浇注梁体前，在支座上放置一块比支座平面稍大的支承钢 板，钢板上焊接锚固钢筋与梁体连接，并把支承钢板视作浇梁模板的 一部分进行浇注，按以上方法进行，可以使支座与梁底钢板及垫石顶面全部密贴。预制梁橡胶支座的安装：安装好预制梁橡胶支座的关键在于保证梁底在垫石顶面的平行、平整，使其和支座上、下表面全部密贴，不得出现偏压、脱空和不均匀支承受力现象。施工程序如下：处理好支撑垫石，使支撑垫石标高一致。预制梁与支座接触的底面要保持水平和平整。当有蜂窝浆和倾斜度时，要预先用水泥砂浆捣实、整平。
Note: keep the construction of pier pad stone tops clean. If the gap between the supports and stones exceeds the standard requirements, the cement mortar shall be used to adjust the elevation. The center of the rubber bearing is fitted with the center line of the supporting stone, so as to ensure the correct positioning of the bearing. In the pouring of beam before placing a slightly larger than the bearing plane of the bearing plate on the support plate, welded anchor bar and beam body connection, and part of the supporting steel plate girder as a template for casting, according to the above method, can make the bearing beam and the bottom steel plate and pad stone tops all. Stick. Prefabricated bridge rubber bearing installation: key pre installed bridge rubber bearing pad stone is to ensure that the top surface of the beam bottom in parallel and smooth, and the support of the upper and lower surfaces all close, there shall be no bias, void and uneven supporting force. The construction procedure is as follows: handle the supporting stone properly, and make the supporting stone elevation consistent. The bottom surface of the precast beam and the bearings should be kept horizontal and smooth. When there is honeycomb slurry and slope, cement mortar should be rammed and leveled in advance.
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The correct location of the rubber bearing makes the bearing and the supporting stone accurately placed in accordance with the design requirements. When the girder is falling, the longitudinal axis of the T beam should coincide with the center line of the bearing; the longitudinal axis of the plate beam and the box girder is parallel to the center line of the support. For the first frame in the fall beam accurately, cross slab beam or box girder, cross the center position can be marked two supports at the end of the beam, the lead line and mark the position the center line of two bearings in the end elevation on the beam, beam falling when the phase coincides with the position of the center line on the pier. The subsequent span can be carried out on the basis of the first span beam. When the girder is falling, the beam should be stable and prevent the deflection or the initial shear deformation, so we can refer to the specifications of the plate type rubber bearing of the railway bridge. The installation of T type bridge, if the rubber bearing ratio of beam bar bottom width should be in between the bearing and the bottom beam reinforcement added support than reinforced concrete pad or thick plate transition layer, to support local compression, and the formation of stress concentration. Reinforced concrete block or thick steel plate should be bonded with epoxy resin mortar and beam reinforcement bottom. After falling beam, the top surface of rubber bearing is maintained horizontally with the beam surface. Prestressed simply supported beam, its bearing top surface can be tilted later; non prestressed beam, its bearing top surface can slightly forward, but the angle of inclination shall not exceed 5".
维护
Maintain
1 )、 板式橡胶支座应定期进行养护和维修检查，一旦发现问题，应及时进行修补或更换。
1) plate rubber bearings should be regularly maintenance and repair inspection, once found the problem, should be repaired or replaced in time.
2)、 板式橡胶支座及四氟滑板橡胶支座应检查如下内容：
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a： 支座是否出现滑移及脱空现象；
A: whether the bearing appears slippage or disengaging;
b： 支座的剪切位移是否过大（剪切角应不大于35°）；
B: is the shear displacement of the support too large (shear angle should be no more than 35 degrees)?;
c： 支座是否产生过大的压缩变形；（最大压缩变形量不得超过0.07te, te为支座的橡胶层总厚度）
C: whether the bearing produces too large compression deformation; (maximum compression deformation should not exceed 0.07te, Te is the total thickness of the rubber layer of the support)
d： 支座橡胶保护层是否出现开裂、变硬等老化现象，并记录裂缝位置、开裂宽度及长度；
D: whether the rubber protective layer of the bearing is cracked or hardened, and the crack location, crack width and length are recorded;
e： 支座各层加劲钢板之间的橡胶板外凸是否均匀和正常；
E: is the rubber plate convex and normal between the stiffeners of each layer?;
f： 对四氟滑板橡胶支座，应检查支座上面一层聚四氟乙烯滑板是否完好，有无剥离现象，支座是否滑出了支座顶面的不锈钢板，5201-2硅脂是否涂放并且注满四氟滑板橡胶支座的储油坑。
F: PTFE sliding plate rubber bearings, bearing should check whether above a layer of Teflon plate intact, there is no peeling phenomenon, whether the bearing sliding bearing the top surface of the stainless steel plate, 5201-2 silicone oil storage pit filled with PTFE and whether onto the slide of rubber bearings.
3）、 支座各部应保持完整、清洁。及时清除支座周围的垃圾杂物，冬季清除积雪和冰块，保证支座正常工作。同时应经常清扫污水，排除墩台、台帽积水，要防止橡胶支座接触油脂，对梁底及墩、台帽上的残存机油等应进行清洗。防止因橡胶老化、变质失去作用。
3) the support parts should be kept intact and clean. Remove the garbage around the support in time, remove the snow and ice in winter, ensure the normal work of the support. At the same time should always clean up the water, out of pier and abutment cap water, to prevent the rubber bearing contact with grease, on the bottom of beam and pier and abutment cap on residual oil should be cleaned. Prevent rubber aging, deterioration, lose function.
2.4.4 梁支点承压不均匀，支座出现脱空或过大压缩变形时应进行调整。
When the bearing of 2.4.4 beam is uneven, the bearing should be adjusted when there is a cavity or too large compression deformation.
2.4.5 板式橡胶支座发生过大剪切变形、老化、开裂等时应及时更换。、
The 2.4.5 plate rubber bearing should be replaced in case of excessive shear deformation, aging, cracking and so on. ,
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