Sliding surface or rolling surface corrosion of the main reasons for the deck truss steel ball bearings, defense, poor drainage, causing water to enter the sliding surface or rolling surface corrosion. Hinges and rollers main reason for cracking, such as to limit the transverse member is provided in the central hinge or the rollers when the ball bearing, if one side is relying too close to cracking. Crack and fall off the roll axis, due to shrinkage of concrete, creep displacement of more than design, aging and cracking, aging and cracking of rubber bearing steel grid bearing the main beam chassis construction or bad In individual position over compression cracks. Bearing steel grid strict quality control process causes early aging of rubber, rubber layer cracking, spalling. Lifting means deformation, mainly because of the deformation floating means hands over the role of the complex bridge design to withstand the force and displacement of the deformation. Deformation limit device, the deformation of the main stopper, steel grid bearing selection and arrangement inappropriate, shrinkage of concrete bridges, creep generate additional shrinkage. Construction error generated during deformation, the same support line set up multiple steel grid bearing, due to the gap between the upper and lower transverse bearing inconsistent concentrated force acting on a bearing and deformation. Prestressed concrete bridge of the Bay Bridge or the occasion, because of the tension caused by the compression volume control is not good, displacement restrained steel grid bearing upturned deformation. Roads and bridges caused by the earthquake earthquake mainly in the following areas, falling beams, steel ball bearing piers, abutments large displacement or damage occurred, leading Luo Liang, the amount of drop impact and gave the substructure caused by the core damage or destruction of bearing steel grid, falling along the bridge girder type to occur most, accounting for about 80% of the total number of all bridge 梁罗亮, May 12, 2008 of 8.0 Wenchuan earthquake caused a highway bridge a lot of damage, resulting in a lot of instances Luo Liang and more typical, damage the lower part of the structure under seismic action, spalling concrete piers, crush, break bare steel, making the pier buckling, cracking or even collapse, abutments produce subsidence, tilt displacement, the destruction caused by the earthquake some cases the lower part of the bridge structure. Disaster bearing steel grid, steel truss bearing anchor bolt pinch-off, unplug the corrosion ball bearings, stopper damaged shaft deformation, fracture, steel truss bearing deformation, delamination, dislocation , part of the base concrete cracking and other circumstances, the earthquake on the highway bridge bearing the impact of. Grid ball bearings | Ball bearings | 13833855982 Tong Hao provided by Hengshui Rubber Company. 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!