[Seismic] ball bearing steel safeguard fundamental principles: Filling technical requirements: (1) filling parts of dust, debris, grease, etc. should be cleaned to ensure the grout and the substrate surface reliable connection. Properly wetted parts of grout according to climatic and site conditions, ball bearing steel grid should not be out of water retention. (2) the top surface of the template and the support cushion stone should take credible measures, grid ball bearings, to prevent leakage of slurry grouting. Template support provided should be above the bottom plate bearing a certain distance. (3) bearing grout material from the center to the surrounding flow, in order to prevent the lower seat pouring false or void. (4) The grout mortar with high strength epoxy. (5) After filling strength of 20MPa, to dismantle filling template. [Seismic] ball bearing steel bearing design and manufacturing should reduce the replacement process and time; in accordance with relevant standards, recommended bearing implement periodic inspection; before checking the bearings around dirt, dust cleared. [Seismic steel ball bearing] regularly check: Have a seat bolt cut; 2 seat relative displacement is uniform, one by one record holder displacement volume; 3 to clear debris and dust near the carriage 4 with cotton Carefully wipe the surface of stainless steel wire dust; 5 loosely angle nut, clean oil to prevent rust and tighten the nut; 6 fixed checking and checking seat height changes; 7 were bearing steel rust treatment paint (stainless steel slide except the face). Seismic steel ball bearings have the following characteristics: seismic steel ball bearing as a shock mount, you must have the carrying capacity, resilience functions; seismic steel ball bearings hysteresis characteristics (load - deformation curve) full of wind-induced vibration and large, medium and small earthquakes can play seismic effect; seismic steel ball bearing itself played a seismic function, do not need to configure other devices, so low maintenance and management costs; seismic steel ball bearings in the size of the earthquake, nor residual deformation and properties of small changes, without replacement; seismic steel ball bearing temperature dependence of the elastic properties of small, suitable for a wide range of areas; creep characteristics of seismic steel ball bearing good ball fixed grid bearing, using a newly developed steel castings. Seismic steel ball bearing good creep resistance, the use of a newly developed steel castings. Surface-coated steel ball bearings Seismic EPDM, to protect the internal rubber from ozone, effects of ultraviolet light and the like, with better anti-aging properties. Seismic steel ball bearing elastic stiffness (equivalent stiffness) depends on the size of the deformation, deformation hour rigidity, large deformation stiffness of the small, non-linear state. For wind loads, high rigidity achieved initial braking function. For earthquakes, because large deformation rigidity is small, you can get good shock effect. Moreover, for excessive deformation can cause hardening of rubber, rubber stiffness increases can be expected to have control of the upper structure over large displacement effect. Seismic steel ball bearing characteristics including performance test test test and seismic station alone bearing steel, seismic stations reduced scale test desirability of not less than one-quarter of the sample, after approval of the Engineer after.