Installation Precautions ordinary laminated rubber bearings: the short side of the rectangular rubber bearings should be positioned parallel to the direction along the bridge, to facilitate the end of the beam is rotated. If you need long side parallel along the bridge to be checking through the corner. ⑵, circular bearing isotropic, without regard to the installation direction, simply mount the center coincides with the center of the design position can be. In order to prevent lateral movement of the beam member under centrifugal force, you can set the lateral stop. Bevel bearing is installed on the bridge at the time of bias, should be parallel to the short side along the bridge with the long edge parallel to the centerline of the pier, the skew angle along the bridge to the pier and bearing centerline should acute angle match. Use ordinary laminated rubber bearings are generally provided with a fixed end and active end to the other; the height over bearing, the horizontal displacement of the superstructure completed using a beam ends and so by the same bearing shear deformation, each pay half, also Available smaller thickness of the rubber bearing as fixed bearing. ⑸, rubber bearings installed in the spring and autumn (average annual temperature) were the best. As the maximum or minimum temperature installation. In order to avoid bearing the occurrence of excessive shear deformation, proposed in the past two ways, one to the annual average temperature of the main beam from the top, the seat is adjusted to the center position. Second, the temperature was calculated to make bearings produced in accordance with the pre-displacement during installation. The former can still be used on the railway bridge, on the highway bridge difficult; the latter site construction technology difficult, difficult to master. It presents a simple method for selection. If you can not be installed in the expected annual average temperature is in the selection of rubber bearings may be appropriate to increase the height of the environment. Extreme high and low temperatures so that when installed, the maximum amount of displacement of the upper structure by rubber bearings, single shear deformation to complete.