Bridge expansion joints main design parameters: bridge expansion joints, according to the different forms of support beams are arranged divided into A, B and C three kinds. Their relevant design parameters such as type A is listed as shown in Figure 5-15 and Table 5-5. Germany Maurer (Maurer) telescopic device D60 highway bridge expansion joints joints, its force in the beam edge beam and hierarchical (above) after rolling profiled steel welded. Early use of steel box beams, structural steel beams and corrugated box side rubber composition (Figure 5-18) freeway expansion joints and provides 60mm and 80mm as a unit modulo two series (Table 5 - 7). More recent bridge expansion joints using Z-shaped side sill beams and king with a bird-shaped rubber band combined structure (Figure 5-19) to 80mm as a unit modulus series of specifications listed in Table 5-8. Bridge expansion joints displacement control system, in addition to have been made by the use of beam oblique angle changes to a scalable solution, while the use of elastic displacement control system as its main mechanism (Figure 5-20) highway expansion joints, expansion joints, Shanxi Road buy products free installation 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!