GPZ basin related to the intensity of which varies with the thickness of the basin floor and bearing steel bearing plates on rubber bearings supporting the concrete. In consideration of the concrete conditions of the local pressure, concrete strength of not less than C40. And the supporting parts should be arranged in the proper mesh reinforcement. On the design and construction requirements of rubber bearing basin fixed rubber bearing basin, the corresponding provisions of the standards and design specifications in many countries around the world in both. In other countries, according to the general bearing limit state design considerations, were seized and destroyed limit state considered operational status. GPZ pot rubber bearing installation steps and key issues in the installation step is the most critical moment pot rubber bearing, we must be more careful. Designed and installed in the seat position to draw the center line, while the top seat, is also marked on the bottom centerline. The bolt passed the floor (roof) bolt hole and screwed into the pillarless pad diameter slightly larger than the diameter of the rubber gasket between pillarless floor and pillarless. After adjusting the seat to the highest level and with high-grade epoxy mortar or mortar perfusion bolt holes and bearing bottom cushion. Wait hardened mortar removal pad used to adjust the seat level and fill with epoxy mortar pad location. Epoxy mortar requires perfusion dense. When bearing welded connections, top, bottom position corresponding embedded steel, bearing in place after welding with a symmetrical way to continue. Welding attention to prevent overheating of the rubber sheet, PTFE sheet of polyethylene impact. To do rust treatment after welding the welding site. Such as T-beams of rubber bearing basin, to take temporary measures to support horizontal activities at both ends of the rubber bearing basin during construction and installation, to prevent roll T beam. Waiting between two T-beam welded into the overall transverse bulkhead, before removal of the temporary support. [GPZ pot rubber bearing] the amount of displacement and installation after years of experiments we found that the cause of bridge bearing damage is as follows: As the number of smaller projects rubber production enterprises, in order to make profits of more rubber bearing basin itself is not qualified products, low intensity, insufficient carrying capacity. Certain bridge design unit for selecting the form of bridge bearings do not understand, bearing arrangement is unreasonable, bearing edge width aside enough support cushion stone or concrete pad stone strengthening low grade less than tendons, fixing bolts Nuts strong enough and so on. [GPZ pot rubber bearing] but also that some no construction experience and technology team facilities, support when installing seat cushion stone, beams underside uneven or pad stone top surface is not level, mortar filling not dense mat within a stone embedded steel unidirectional instability pot rubber bearing activities, and bearing loose connection, metal bearing corrosion, rust treatment quality is not high. Fourth, maintenance and repair, the sliding surface, rolling surface is not Clean, foreign bodies are not cleared up, loose fasteners reinforcement is not timely, because the waterproof device or connecting surface defects so that the invasion of water bearing corrosion, accelerated aging processes. Fifth, because of the piers, Taiwan uneven subsidence, tilt and horizontal shift of the upper structure, upper structure vibration displacement directly affect the normal use of bridge bearings. In order to increase the traffic of smooth, large bridges in the joints now have a great pitch, which requires a large amount of displacement of the bearing. Each level has a large bearing activities, a small amount of two kinds of displacement. Therefore, in the design [GPZ pot rubber bearing], you need to calculate bearing activities to the maximum vertical displacement bridge. Vertical displacement of the bearing to the bridge should include temperature changes, concrete creep, displacement and displacement caused by braking force caused by the shrinkage of concrete. [] GPZ pot rubber bearing displacement transverse to the general can meet the requirements, without checking. Determine the amount of displacement of the bearing capacity of rubber bearings. [Unidirectional activity rubber bearing basin | Inner pot rubber bearings | manufacturer of professional-Run by Hengshui Rubber Company. Hengshui Guangrun Engineering Rubber Co. 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