Deformation or rupture of the main bolt, bolt strength or lack of good material. Not long enough or screws into the anchor well. Bear reaction force insufficient stiffness of anchor bolts fatigue. Long-term repeated action live load fatigue. Although sometimes difficult to find in the appearance of reduced performance reasons mount holder changes monopile sliding parts to wear or aging of materials bearing tension and compression, in this case the one-way ball bearing hinge tension and compression, Workers should also bearing steel grid over it to make appropriate judgments, the general criteria below. Degree bearing steel grid survey quite fast. As the administration or management of the bridge, you must stand by the extent of damage to the steel grid survey, and the results of the survey, consider the characteristics of the bridge connection structure, purpose and scale back its repair necessity plate rubber pull pressure bearing, repair or strengthening method is necessary to make the right judgments, steel truss bearing damage inspection program to determine the work process flow. Steel truss bearing damage assessment procedures, assessment of damage on bridge bearings procedures currently curing specifications for highway bridges and culverts bearing function has a relatively clear evaluation criteria. In China's railway sector has assessed standard railway bridge and tunnel building. Steel grid bearing types and causes of deterioration bidirectional ball bearing hinge tension and compression, steel truss bearing deterioration of classification, according to railway standards, bearing degradation level is divided into four abcd railway bridge bearing deterioration rating, according to railway standards, steel grid bearing deterioration rating, laminated rubber bearing deterioration rating shows, pot bearings deterioration rating. Evaluation Method steel grid bearing deterioration, according to the provisions of the standard steel truss railway bearing deterioration evaluation method made two provisions, to determine the type of steel truss bearing deterioration and degradation level, should be bright in optical fiber ah jumped with the naked eye and under the proper testing equipment checks. How to deterioration of the project, in the rating, one of the most serious deterioration should be assessed. Steel grid bearing deterioration and repair of judgment, for steel grid bearing deterioration or damage to the extent of inspection methods and emergency repair. States have different requirements for word, as a reference inferior, information on criteria bearing steel grid deformation and repair, steel truss bridge bearings are interchangeable parts, especially steel grid bearing, due to material aging of its life than concrete, steel side, at the discovery of the fault and repair damaged or even worse turn. Establish regular replacement finger again. Ball Bearing tension and compression tension and compression _ _ Professional manufacturer direct bearing provided by Hengshui HaoTong 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!