According to the actual situation of the Qiantang River Bridge seismic force steel ball bearing, at constant load and live load together, contact stress between the stainless steel plate for 15MPa, the dead load stress is about 12MPa, to ensure the bearing friction coefficient of 0.2 to 0.28, Academy of Railway Sciences has worked flat yellow copper and stainless steel friction plate, followed by the coefficient of friction between 0.135 to 0.15. Seismic steel ball bearing mechanical properties of steel ball bearings in seismic bearing steel liner plate to the middle of the bridge along the ends of the roof when the relative sliding bearings and intermediate steel liner plate (seismic force is greater than 0.2P), the Seismic steel ball bearing ball bearing KLQZ acoustic bearing steel, thereby generating a lateral force, the lateral force by bolted on the top plate of the lateral bearing steel baffles bear. When you reach a certain lateral force, yielding steel bezel, steel ball bearing bearing capacity loss. When seismic steel ball bearings under pressure, will produce lateral lateral pressure steel bezel, rubber due to the Poisson ratio close to 0.5, so the stress state in the three lateral stress is consistent with the normal stresses of rubber. The lateral force on the cantilever steel plate has been firmly suppressed by the screw, the main bolt has enough strength TGQZ elastic steel ball bearings, steel plate under the stress state is equivalent to the lower lateral consolidation . Steel stress stress measurement and theoretical calculations are very close. Seismic steel ball bearings and a positive relationship between the level of stress characteristics with increasing normal stress, horizontal stiffness degradation, equivalent damping ratio increases, the yield load increased slightly. Limit state seismic steel ball bearing steel ball bearing shear properties of seismic shear properties are almost equal in the limit state and natural rubber laminated rubber bearing, when the second form factor> 5:00, shear deformation to 150-200 % change when straight, followed by a hardening SJQZ elastic steel ball bearings, damage occurs when more than 400% to shear deformation. Level features and repeated cycles of relationship equivalent stiffness after yielding stiffness, equivalent damping ratio, yield load, etc., in the first few cycles decreased slightly, and then stabilized. After sufficient time parked excitation, when excitation again, characteristics recovery. Momentum quality standards bearing longitudinal centerline wrong with pier crosshairs "15mm. 6.1, bearing centerline and horizontal crosshair wrong pier momentum "10mm. 6.2, bearing plate edge of each plate height "1mm. 6.3, the center bearing bolt position deviation "2mm. 6.4, the same end of the two seat relative displacement between the transverse centerline "5mm. 6.5, the bolt perpendicular to the beam base plate. .6,4 A top surface of the seat relative height 2mm. Distance 6.6, the same end of the longitudinal centerline between the two seats: errors and bridge design centerline symmetry + 30mm, -10mm. Errors and bridge design centerline asymmetrical + 15mm, -10mm. SJQZ elastic steel ball bearings, flexible steel ball bearings, ball bearings to provide two-way-way-Run by Hengshui Rubber Co. project. Hengshui Guangrun Engineering Rubber Co. (www.grgcxj.cn) (www.grgcxj.cn) strong, credible, Hebei Hengshui site construction materials industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Guangrun Rubber Company and you work into the brilliant, for a better future! You can also access (www.grgcxj.cn/supply_details_43268175.html), for more information about the company.