Curved continuous girder bridge bearing arrangement affect the normal use of the bridge for a great, often due to improper bearing arrangement, or to limit support (fixed bearing and unidirectional sliding bearings) are exposed to horizontal forces underestimated, resulting in Some curved continuous girder bridge bearing spherical bearing tension and compression occurs at a temperature constraints limit the role of being cut, so that the occurrence of excessive bearing lateral displacement (even reach 20 ~ 30cm), a direct impact on traffic on the bridge safety. Germany EGG-ERT curve continuous beam bridge abutment arranged to do a detailed analysis for curved continuous beam due to the location and the way the fire fixed bearing slide bearing guides arranged spherical bearing different lkqz finished tension and compression will cause the bridge structure and lateral displacement of the different binding. In order to ensure maintenance of the amount of steel ball bearings seismic safety and reduce the structure, bearing arrangement i should make minimal bearing on the structure of the constraint, it must stand clear of permanent displacement and direction. Seismic steel ball bearing displacement by Emperor shrinkage and creep of concrete, and prestressed other causes, which concrete creep and shrinkage of the number and duration affected by many factors and can not be accurately predicted. In the displacement temperature shift in the life of the bridge will usually cause maximum displacement bearing, and the displacement of concrete creep and shrinkage is generally produced in a few years it is nearing completion. Considering the above factors curved continuous girder bridge abutment arrangement can be arranged by the polar radial and tangential arrangement of two ways. Seismic ball bearing steel sample test results should meet the following parameters: (1) force all type testing of viscous damping unit - two-way tension and compression displacement curve ball bearing prices, should render the force - carrying capacity of positive growth trends and can meet the requirements of the level of resilience. I.e., in the design of the displacement d of the restoring force, restoring force should be greater than 50% displacement design (0.5di) and on a restoring force is not less than W / 80, W is the total vertical load designed damping system. (2) ball bearing steel specimen temperature during the displacement test, the measured value should be less than the maximum force design value: displacement under test (3) steel ball during wind and seismic braking force bearing samples , the value of the measured maximum displacement should be less than the design value; Displacement Test (4) steel ball bearing in the sample during the seismic force at the last three cycles deviation was reduced stiffness values ??and average effective design value less than 10%; (5) Ball bearing steel under the test specimen during the displacement of the seismic force, a minimum value of the average effective stiffness reduced the last three measured cycles of not less than 80% of the maximum effective stiffness. (6) ball bearing steel test specimens during the displacement of the seismic force under the elastic stiffness in tension and compression of spherical bearings, the average effective stiffness of the prescribed minimum number of cycles, measured, not less than the maximum effective stiffness of 80 %. Designed for maximum acceptable by the engineer prudent judgment. (7) the displacement of steel ball bearings under the test specimen in force during the earthquake, in a specified number of cycles, the measured minimum hysteresis curves include map area, have less than the maximum hysteresis curves include chart (EDC) 70% of the area. Above on the test requirements seismic steel ball bearings can be used to assess a variety of ball bearing characteristics. Spherical Bearing tension and compression elastic stiffness in tension and compression _ _ spherical bearings price consulting Guangrun Guangrun provided by Hengshui Rubber Company. Hengshui Guangrun Engineering Rubber Co. (www.grgcxj.cn) is specialized in the "seismic steel ball bearings, spherical steel unidirectional bidirectional slide bearing, fixed-elastic damping ball bearing hinge" of the enterprise, the company is adhering to the "integrity management , hard service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Mr. Wang.