Bridge expansion joints displacement control system d40 steel expansion joints, elastic displacement control spring and its coordination in various movable beams and rubber sealing strip together to form a complete motion system (Figure 5-22). Control spring retractable path control of each unit within the gap, bridge expansion joints while elastic yield minus side of the decimal point its influence. Bridge expansion joint reaction force acting on the direction of displacement can be obtained by calculating the extreme. For the band-shaped sectional profile: compression 4KN / M, stretching 3KN / m; for the box-section type: compression 6KN / m, tensile 3KN / m. Nothing to do with the above limits the number of elements in the beam and stretching. Hubei Province, Wuhan damage after telescopic device Han River Bridge telescopic device is a lot of water seepage, bridge expansion joints causing corrosion steel area, plate rubber expansion device uses Tianjin Eastern Ring Road overpass just one year there appeared rubber cracking, exposed steel anchor pieces off, bridge expansion joints affect the normal use of the bridge, Dalian, Liaoning Province overpass flat steel telescopic device shortly after it was badly damaged integration, telescopic device off, anchors exposed, resulting in a strong jolt when the car passes side impact beam, resulting in Some damaged concrete girder ends, appeared holes, seriously affected the normal transportation d60 Maurer joints, Liaoning Province Xianglujiao overpasses, roads northeast section of the full-length 2023m, total plate rubber expansion device 24, bridge expansion joints on both sides of the prevalence of broken pavement, herbs penetrate the cap bolt deformation, angle open welding bounce, break loose rubber sheet, void abolished, severely damaged about 90%. Shaanxi Province and the Weihe River Bridge on the road, the traffic has not been less than four months to the higher temperature change temperatures, bridge expansion joints deformed plate rubber telescopic device anti-wall uplift the whole bridge expansion joints, bridge expansion joints uneven deformation, steel and rubber expansion joints peel, and some have been very serious, not only affect the driving comfort, but also affects traffic safety. Anti-wall joints, joints Suzhou, 13833855982 Tong Hao 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!