Germany Maurer (Maurer) telescopic device bridge expansion 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), 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 c40-type expansion joints, and the use of elastic displacement control system as its main mechanism (Figure 5-20) displacement of bridge expansion joints Control system d160 type expansion joints, elastic displacement control spring and coordinated thereto in each of the movable beam and a rubber sealing strip together to form a complete motion system (Fig. 5-22). Control spring control path d80 type telescopic joints 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. c40-type expansion joints | joints | Hao-Hao Rubber pass 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!