Hao-card sliding bearings, sliding bearings finished corridor, Hainan corridor sliding support provided by Hao-engineering rubber. We are Hengshui HaoTong Engineering Rubber Co., Ltd. (www.htgcxj.com) located at: Hebei Hengshui specializes in: grid bearings, bridge expansion joints, water stop, bridge bearings, rubber bearings, ball bearing steel bearing Appearance quality timber corridor bidirectional slide bearing, PTFE resin sheet should Bensi, plate surface should be smooth, not allowed to have a crack longitudinally sliding bearing corridor, bubbles, delamination, mechanical allowed to affect the use of damage and other defects, does not allow any impurities and single appearance quality should comply with the relevant provisions corridor sliding bearings, grease lubricants, stubborn as a milky white or light gray translucent objects, does not allow any mechanical mixed with stainless steel stainless steel plate bearing use, without air bubbles into cracks, impurities, scarring and other defects affecting performance, welding parts are dragged gas shielded arc welding, the weld should be firm, smooth, vouchers, continuous, not even crack the finished product Gallery sliding bearings, spreads, for integration and to fill the crater. Weld height should meet the design requirements, the welding process Haiying avoid weld Empress, dislocation and base metal burns and other defects, surface defects machined steel castings shall comply with the provisions of, steel castings machined surface defects machined after the regulations, but does not affect the life and performance of steel castings, allowing a patch of honeycomb holes and cracks in the repair does not allow the use of steel castings, steel castings welding money, it must be cleaned to exhibit defects Good metal position, and from the bevel edge surface within the range of 30mm and a strong clean, simple and honest should be grinding to meet the casting surface quality requirements. And shall have not weld, cracks, slag, porosity and other defects. After welding parts should be annealed or tempered. Each function on the principle structural inspection should not appear at all interfere with each other, seismic dynamic consider earthquakes during the bridge use, shall be subject to "minor earthquake, the earthquake can repair, earthquake does not fall" principle to consider . So bearing structural systems for bridges, structures built after the completion of the settlement if the foundation compaction due to changes in ground subsidence, causing the lower pick Oh stocks, horizontal displacement and rotation and so on. Respect to the upper structure, acting on the load bearing construction, and function of a great difference in the construction of the completed bridge load bearing functions in the study, an external force must be considered in the construction of the impact will occur pivot effects of displacement and rotation should be based on the current seismic code provisions are important for seismic performance guaranteed seismic dynamic structure around the bearing structure constant load when the upper structure acting as the main load bearing as a modern functional requirements , with a variety of structures in Figure 1-2 if. The so-called structure is composed of bearing itself among the members of each force transfer and absorption relative deformation of the structure. There are vertical dead load, live load (including impact) and temperature changes, concrete shrinkage and creep effects, prestressed, etc. Once the interference, but also the entire bridge structure should be designed system.