Once the changes in the new situation should be promptly cleaned or repair outside and check the degree of change and its causes from the surrounding circumstances, whether the repair and strengthening of early to make judgments bearing steel grid style is very important daily work. Bearing steel truss bridge caused damage is multifaceted, generally considered the force acting on the bearing often exceeds the design requirements and design requirements exceed the deformation is the main reason, but imperfect construction and quality management is also one of the reasons, Therefore, the design should take full account of steel truss bearing force, displacement and use of the environment, but also the need to ensure construction quality. Steel truss bearing types and causes damage to the main aspects can be summarized as follows: steel truss bearing itself deformed bearing itself mainly due to structural deformation force curved bridge or ramp bridge complex, steel mesh rack mount stress generated at the uneven concentration. Not dense or mortar base plate corrosion, processing quality control is lax, bearing in itself flawed. Bolt truss bearing rubber mat, not tightened truss steel bearings, corrosion, deformation and deformation of the nut off construction, consider the vibration inadequate. Sliding surface or rolling surface corrosion. Steel truss bearing corrosion The main reasons are the components, corrosion and water leaks and flooding generated bad, causing serious rust. Cleaning is not timely, adequate, there dust deposition. Anchor bolts cut, pull out the main reasons are, steel truss bearing set incorrectly, steel truss bearings and other moving range prolapse. Less than double the number of Romanian and buying length. Withstand negative reaction force bearing not set fixtures. Mortar filling is not dense. Mortar base filled voids, cracks truss supports, base filled with mortar holes, mainly due to cracks; no shrinkage mortar filling agent is not dense mix well, good waterproofing and drainage, water immersion internal cracking. Base concrete crushed, peeled, crushed concrete and steel truss bearing the main reason for the release bearing edge distance and lack of Jiaqing reinforced base, lack of stone and steel truss support cushion seat bottom surface dimensions. Mortar filling is not dense. Bottom junction crack or break under the main reason for the long-term effects of heavy traffic load, bearing steel grid floor junction fatigue cracking or breaking. Bolt deformation or fracture. Grid bearing grid bearing price _ _ Hao-Hao Rubber pass by Hengshui Rubber Company. Hengshui HaoTong Engineering Rubber Co., Ltd. (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 work into the brilliant, for a better future!