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. Single shock absorber when the bridge design, bridge expansion joints taking into account the role of rating earthquake, bridge expansion joints have been damaged may be partially ah without fatal disaster, therefore, bridge expansion joints using grade shock absorbers The design displacement as a bridge between basic design parameters of rational type 80 type expansion joints, stretching the amount of 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 exact amount of stretching outside f80 using design-type bridge expansion joints, more important is the telescopic device itself should have this aspect itself the ability to adapt, 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 bridge engineering development, but also a bridge seismic design considerations problem. Of course telescopic device is a more complex system architecture, bridge expansion joints should be a comprehensive evaluation of its quality more appropriate style, single issue is the various forms of magic telescopic device in addition to the different power transmission linkage structure, but it can be said other components are is similar, therefore, even in the form of its first mechanism to be adopted and analyze the personnel it is inevitable, but there is a variety of bridge expansion joints used in the linkage pick oh shares can be said to have their pros and cons, bridge expansion joints in the future are related to the treatment of research, design and production of various aspects such as innovation, improvement and continuous improvement, easy and convenient replacement of expansion joints bridge expansion joints, it is clear that bridge expansion-type environment in relatively poor cqfc40 type bridge expansion joints, is the most easily damaged bridge components, it is impossible style once and for all damage and replace when necessary, therefore, to facilitate the replacement of a telescopic device should take into account the problem of bridge expansion joints at both ends of the general volume for expansion of 160mm-240mm In a partial component damage is more difficult to deal with them are usually dug to replace the whole, with the amount of stretching alone in 320mm, more models, typically below it has enough room for maneuver, wish to be able to damage a partial member under the bridge, and so were easily worse idea. 80 type bridge expansion joints, expansion joints Yuxi, factory support Alipay transaction 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!