Once the changes in the new situation should be cleaned or repair outside and check the degree of change and its causes from the surrounding circumstances, whether made early repair and strengthening of the predicate is very important bearing steel grid daily work. Causes damage to the bridge bearing steel grid are many, generally considered the force acting on the bearing and deformation often exceeds the design requirements exceed the design requirements is the main reason, while imperfect construction and quality management is one of the reasons, Therefore, the design should take full account of steel grid bearing force, displacement and use of environmentally steel supports, must also ensure construction quality. Steel truss bearing types and causes damage to the main aspects can be summarized as follows: bearing steel grid itself bearing deformation due to the structure itself, the main reason for the deformation force curved bridge or ramp bridge complex, in steel mesh rack mount at uneven stress concentration. Mortar base plate is not dense or corrosion, processing quality management is lax, bearing in itself flawed. Bolts, nuts and shedding deformation not tightened construction, corrosion, deformation, vibration considered inadequate. Sliding surface or rolling surface corrosion. Sudden and strong earthquake to human production and life has brought great impact steel truss supports, loss of life and property is difficult to estimate the seismic finished steel bearing, 1976 Tangshan earthquake in Tangshan country becomes a pile of rubble. Its influence spread to Tianjin and Beijing, the death toll as high as 242,000 people, many villages in Wenchuan earth Wanted positive commitment after the ruins of collapsed buildings and heavy conditions, earthquakes gave the local people brought significant life property damage, earthquake prediction is the year the world's unsolved scientific problems, the more developed economies, the greater the loss relief, steel truss bearing earthquake people worry and fear are more intense, causing earthquakes and earthquake disasters in a moment happened, but bearing steel grid issued earthquake secondary disasters, such as landslides, lake, mudslides, fires grid Steel bearings, floods, pestilence and other really long steel bearing rubber pads, far-reaching, the normal operation of disaster relief and post-disaster response work of the national economy will have a major impact, steel truss-type bearings have many questions and even very tricky and difficult to solve. Earthquake finished steel bearings, bearing steel Ziyang, free installation guide provided by the manufacturer Hengshui HaoTong 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!