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 bearing steel ball bearing, whereby the 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 is applied on the surface tensile steel GQZ dual steel ball bearings, steel screws are firmly suppressed again by double curved tensile steel ball bearings, main bolts have sufficient strength steel lateral force the state is equivalent to the lower end of the consolidation of the cantilever. Steel stress stress measurement and theoretical calculations are very close. In the railway bridge in 2003 and issued special structures, design rules, and also raised seat height adjustment can be used parallel to the plane of the plate (plate) to achieve. Simple seismic steel ball bearing structure, the increase in low cost, can increase or decrease the seat height as needed, but it must be raised when jacking beams. Raw materials, Academy of Railway Sciences spiral raised this way increase the way for Aviation Rocket Sled height adjustable rails project on seismic steel ball bearings in 1987, this approach increases the larger trapezoidal seat thread, and after raising threaded on, the gap between the lower screw, and use the grouting filling, increase process also requires jacking beams. Ways to increase the pressure injection of rubber bearings after installation by pressure injection of rubber to increase seismic steel ball bearings with grouting pipes bearing on the floor, you can increase the pressure inside the bearing pressure injection through the rubber sheet rubber thickness, thereby adjusting the seat height. Steel ball bearings to increase the seismic design was novel, when raised without a separate jacking beam TGQZ hyperboloid tensile steel ball bearings, by setting the multi-channel pressure injection holes can increase several times. Such a large number of ways to increase the use of the Beijing-Tianjin intercity railway. Because raising process requires roof beams, construction measures more complex TLQZ hyperboloid tensile steel ball bearings, steel ball bearings and seismic methods have raised without a separate jack, you can use the advantages of the top beam bearing itself, and can be Promise increase realization, simple construction measures. TLQZ hyperboloid tensile steel ball bearings _ hyperboloid tensile steel ball bearings _ provided by the manufacturer Guangrun Hengshui Rubber Company. 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_41352050.html), for more information about the company.