[Bridge expansion joints] temperature range and temperature coefficient of linear expansion bridge species range temperature coefficient of linear expansion of the scope of the general area of ??the cold regions of bridge types of linear expansion coefficient of reinforced concrete bridge -5 ℃ ~ + 35 ℃ -15 ℃ ~ + 35 ℃ 10 × 10-6 Steel -10 ℃ ~ + 40 ℃ -20 ℃ ~ + 40 ℃ 12 × 10-6 Composite Steel -10 ℃ ~ + 50 ℃ -20 ℃ ~ + 40 ℃ 12 × 10-6 [bridge expansion seam] concrete creep and shrinkage of concrete bridges and prestressed concrete bridge to consider its creep and shrinkage. Xu Liang variable as elastic deformation under prestress creep coefficient multiplied by φ = 2 is obtained. Shrinkage temperature dropped to 20 ℃ to conversion. When the bridge expansion joints should consider installing [] concrete creep and shrinkage of the finished part, for all of creep and shrinkage should be multiplied by the reduction factor β. The following values ??for β reference design (Table 2). [Bridge expansion joints] concrete curing concrete pouring is complete, timely geotextile covering health, during the health of not less than seven days. After the concrete strength more than 50% of the design strength, install rubber seal sgf120 bridge expansion joints quality assurance, must serve as a template in the joints before installing foam board, fiberboard, plasma leakage concrete lumps all dig clean after bridge expansion joints embedded rubber. Construction of bridge expansion joints] [Note 1) notify the site before construction joints technician gqf-e80-type bridge expansion joints prices, to be technical personnel for inspection before construction site supervision consent. 2) After grooving, slitting complete, clean up debris inside seam to ensure clean inside seam to be constructed. 3) Install] [bridge expansion joints embedded parts before checking whether the specification is complete, break, bend the embedded parts of the adjustment righting, before construction of the padded embedded parts missing. 4) the gap width and stretching between the ends of the upper structure of the disposal of equipment and installation of a predetermined width are installed with proper temperature, and follow the provisions of the drawings. Fixture expansion joints installed in the control joints manufacturer sales Zhejiang bridge expansion joints first, installed within a temperature range of 10 ± 5 ℃. When the temperature differs from the drawing installation joints provisions, according to the comprehensive calculation span deck continuous length, the installation temperature, etc., and the procedures to be adjusted after the confirmation of the installation parameters. 5)] [bridge expansion joints with high-quality welding electrodes by one. First when welding the top surface, and then weld the side, and finally welding underside to stratification and timely removal of welding slag, after the welding portable grinder polished top surface. Weld length not less than specification. Professional manufacturer of bridge expansion joints, bridge expansion joints, rubber-Run-Run Company is provided by Hengshui Rubber Co. project. Hengshui Guangrun Engineering Rubber Co. (www.grgcxj.cn) (www.grgcxj.cn) strong, credible, Hebei Hengshui site construction materials industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Guangrun Rubber Company and you work into the brilliant, for a better future!