Seismic steel ball bearing type tests should be carried out at the vertical load and horizontal force displacement below: (1) temperature shift experiments - applying horizontal displacement of the largest temperature to 0.003inches / min speed, reciprocating cycle three times; (2 ) wind and braking tests - under maximum positive to negative 20 times the load carrier, the total time of less than 40s, after reciprocating test should be kept 60s at maximum load; (3) the seismic force test - the total design 1.0,0.25,0.50,0.75,1.0 and 1.25 times the displacement under the action of the reciprocating load 3 times; (4) the seismic force testing - under 1.0 times the design displacement, conduct (15Si) / B times, but not less than 10 times more than 25 times the reciprocating load test shall be conducted on the basis of literature and art that have occurred on the temperature, which is the site coefficient Si earthquake (1.0 ~ 2.7), B for damping damping unit (0.8 to 2.0); (5) Wind and braking tests - the maximum positive and negative under the load carrier to 20 times, with a total time of less than 40s, after reciprocating test, should be kept 60s finished elastic damping fixed spherical bearings at maximum load, the test After the earthquake load damping unit tests; determine (6) earthquake parameters - is determined by the total design displacement under load test three times back and forth; seismic steel ball bearing is provided at a certain force of the earthquake was cut elastic limit When the device, which limits the ability to test should be determined. Type testing and quality control testing should include all components of the damping system. There is no limit to the constraints of fixed elastic damping unit of finished steel ball bearing price, should be perpendicular to the loading direction and in the direction of acting experience; for Construction Committee has constrained elastic damping unit fixed spherical bearing, or that the role of the vertical sensitive damping unit shall be 45 ℃ angular orientation test. [Seismic] ball bearing steel safeguard fundamental principles: grouting technology requirements: (1) filling parts of dirt, debris, oil, etc. should be cleaned to ensure a reliable connection grout with the substrate surface. Properly moist parts of the grout according to the climatic and site conditions, should have clear water retention. (2) the top surface of the template and support cushion stone should take credible measures to prevent leakage of plasma at the time of filling. Template support provided should end up bearing plate at a distance. (3) grout from the bearing center to the surrounding flow, in order to prevent the lower seat pouring untrue or void. (4) the use of high-strength grout epoxy mortar. (5) After filling strength of 20MPa, to dismantle grout template. [Seismic] ball bearing steel bearing design and manufacture of anti-pullout KLQZ fixed fixed spherical bearing, should reduce the replacement process and time; in accordance with the relevant standards, recommendations on the implementation of regular checks bearing; Before checking, will stand around dirt, dust and the like removed. Seismic steel ball bearings] [regular checks: one bearing bolt whether the cut; 2 seat relative displacement is uniform, stand-by record amount of displacement; 3 Clear debris and dust with a cotton stand near 4 Carefully wipe the surface of stainless steel wire dust; 5 loosely angle nut, cleaning oiled to prevent rust and tighten the nut; 6 point check bearing checking and highly variable; seven were bearing steel paint rust treatment (stainless steel slide except the face).