The main components shaped steel American Watson (wotson) bridge expansion joint device bridge expansion joints, that edge beam, the beam are made of high-quality corrosion-resistant carbon steel (ie conform to ASTM A-588 standard steel) and manufacturing. Steel Pass using CNC turning from e40 bridge expansion joints, pass standard for comparison. Bridge expansion joints rubber seal joints embedded solid, reliable, waterproof performance,, are units of modulus 80mm box-shaped and divided the country in two forms based on a bird-shaped rubber seal shape. The basic structure of the bridge expansion joints and design parameters are: 5-23 and list box as shown in Table 5-10; 5-24 listed and bird-shaped as shown in Table 5-11. Bridge expansion joints, under normal circumstances should follow Sunny standards, regulations highway bridges telescopic device, also refer to the highway bridge expansion practical manual and other relevant monographs determined by calculation. Seismic Design of Bridges when single overpass expansion joints, bridge expansion joints under the action of taking into account the level of a major earthquake, it is possible to partially bridge expansion joints without damage ah deadly disaster, so profiled steel expansion joints, bridge joints using design displacement grade damping device type as the basic design parameters of reasonable amount of stretching its design can be determined according to the following formula. Bridge expansion joints Furthermore, due to the level of vibration generated by earthquakes, often, the situation is more complex multi-direction, so in addition to the amount of stretching and accurate use of the design, the more important is the telescopic device itself should have the ability to adapt itself in this regard, bridge expansion joints monograph dedicated manual epilogue, on adaptation research and development of three-dimensional displacement telescopic device made an appeal, which is not only much-needed bridge expansion joints of the bridge project development, bridge seismic design issues also need to be considered. Profiled steel expansion joints, Linyi joints, expansion joints to buy Hengshui Hao-Hao Tong 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!