Transmission transmission bridge expansion joints bridge expansion joints J-75 multi-stitch type bridge expansion device is controlled by the arm, joystick and other ancillary pieces of composition. Joystick from the beam passes through the web, where it has a cylindrical bearing and fit, shown in Figure 5-4. Mechanical motion transmission mechanism bridge expansion joints will be as follows: the beam embedded in the body of the box led to the control arm, control arm lever to force rotation, push the lever to slide axially along the bridge beams, beams, while promoting the lateral stringers parallel movement. Bridge expansion joints rubber seals by Yan shaped rubber strip and stainless steel clip and clamp blocks. Side block bridge expansion joints upcoming rubber toothed pattern pressed into the inner recesses of the clip, clip strips lengthwise at regular intervals from the outer edge to the clamp block sets, stainless steel bolt through the clamp block, the rubber grip on stringers under the flange, shown in Figure 5-5 on design, focusing on the impact of possible structures to bring the bridge earthquake, so far, have been observed among gqf-e80-type bridge expansion joints, consider the world The strongest earthquake forces on the southern counties freezer earthquake, the single over the earthquake force, due to the unpredictability of bridge expansion joints and seismic structural damage to the surrounding area of ??the complex structure of the bridge vibration Shallow expansion joints, bridge expansion seam will not deny the possibility of exceeding the assumed seismic force and displacement on the bridge deformation. Bridge expansion joints unexpected events such as a reliable structure, suitable to take to prevent falling beam device shown is necessary gqf-f80-type bridge expansion joints, furthermore, to stand at the use of Class A set of deformation limit device and connection protection device, but did not prevent Luo Liang devices, expansion joints, but in order not to arrange for the placement of understanding described in the table. Prevent basic considerations of bridge method, based on the type of bridge and support conditions, bridge expansion joints will involve induction conditions, should not prevent the constraints of bridge bearing deformation, movement and the amount of rotation, expansion joints at the same time does not give the future maintenance management hindrance, especially in light of past experience, it is necessary for the following bridges research resources. gqf-e80-type bridge expansion joints, expansion joints Tongchuan, factory support Alipay payment 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!