Such as bearing steel grid is flexible, the amount of displacement is normal and so is the content of regular inspections, the need for observation and measurement of their working process, so regularly check stressed the need to be close to double-check each component seismic bearing device defect cases, That is subject to prior periodic inspection of the components necessary to create conditions close to, such as the use of bridge inspection vehicle and erection of temporary support measures light only stand as close as possible to carry out a detailed examination of the site. Regular inspection phase grid seismic bearings, bearing the main emphasis on the steel grid to check the following aspects; steel grid seat assembly is intact road seismic bearing, clean, with or without fracture, dislocation, void. Bearing steel grid is flexible, actual displacement is normal, fixed bearing anchor pin is intact. Steel truss support cushion stone style whether cracks. Easy mount is aging, cracking or failure. Bearing steel grid is aging, cracking, or without excessive shear deformation or compression rubber layer between each sandwich plate is uniform. No dirty when PTFE slide bearing, aging, tetrafluoroethylene plate is intact, rubber block is drawn steel. Basin, steel grid bearing bolts are loose, exposed parts of the basin cylinder for corrosion, dust cover type whether intact. Bearing steel grid corrosion of the components are the main reason, anti-corrosion and water leakage and produce bad flooding, causing severe rust. Cleaning is not timely seismic bearing specifications, inadequate, there dust deposition. Anchor bolts cut, pull out the main reasons are as follows, bearing steel grid is set incorrectly, the range of movement of steel truss bearing prolapse. Less than double the number of Romanian and buying length. Bear no negative bearing reaction force set up fixtures. Mortar filled not dense. Base fill empty mortar, cracks, filling mortar base empty, mainly cracks; no shrinkage mortar filling agent is not dense mix well, good waterproofing and drainage, water immersion internal cracking. Crushed concrete base, peel, crushed concrete and steel truss bearing the main reason for stripping edge distance and lack of seat base Jiaqing steel, steel grid inadequate support and seat cushion stone base size. Mortar filled not dense. Floor junction crack or break under the main reason for the long-term effects of heavy traffic loads, bearing steel grid floor junction fatigue cracking or breaking. Bolt deformation or fracture. Seismic grid bearing | Tianjin seismic bearings | Buy seismic bearings to be provided by the Hengshui Hengshui Hao-Hao Tong Rubber Co. project. Hengshui Hao-Engineering Rubber Co. (www.htgcxj.com) strong, credible, Hebei Hengshui site construction materials industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement through innovative ideas will lead Hao engineered rubber and you hand in hand into the brilliant, for a better future!