The bridge is the connection between straight segments, curved corners and variable diameter straight through, Polymer cable bridge factory connection. The thickness of the steel sheet of the connector is generally greater than the thickness of the steel sheet of the bridge frame. The interface shall be flat and free from deformation, bulging and dents. The semi-circular head galvanized bolts for connection shall be located inside the bridge and the length of the bolts shall be appropriate. After tightening, the exposed length should be 2 ≤ 5 teeth. The connecting position of the straight section of the horizontally installed bridge should be as close as possible to about 1 ≤ 4 between the two supports and the hanger.
    1. Under normal circumstances, the bridge is not manufactured at the construction site. For special reasons, existing bridges can be used to modify non-standard bends and reduce straight lines. When rebuilding and cutting straight bridges, they must not be cut with gas or electric welding. Special cutting tools should be used. The modified bridge needs to be leveled and replenished in time. The color of the topcoat should be similar to the color of other bridges. 2. According to the provisions of GB50168, expansion joints shall be provided to ensure that the cables laid in the bridges and bridges can be freely stretched without jeopardizing the expansion of the building and jeopardizing the building itself. , not damaged. As in the new building, the erection of the bridge is generally carried out within a few months or even a year after the completion of the concrete structure project, and the shrinkage of the concrete is gradually reduced. In general, the expansion does not exceed the width of the expansion joint of the building.
    3. If it is found or learned from the civil construction unit that the large expansion joint of the building may exceed l, it shall be stretched according to the actual situation. To cross at least one side of the bridge with a long straight section, it should be more than 30 meters, or the linear frame on either side of the tensile joint is 30 meters without horizontal or vertical bending. In order to facilitate the expansion of the cable (or wire) in the cable tray, this balance should be greater than the expansion joint width.
    The polymer cable tray is neat and tidy, the lines are smooth, the color can be customized according to customer requirements, and the decoration is strong. The product adopts hollow structure and light weight, the raw material material has a specific gravity of about 1.5, while the traditional aluminum alloy material has a specific gravity of about 2. 7 compared with polymer cable bridges, which has significant advantages in application and installation engineering. There is no need for large hoisting machinery and open flame operation such as welding and cutting, which greatly improves the installation speed and reduces the waste of spare parts resources, greatly facilitating subsequent capacity expansion and transformation, and greatly saving engineering installation costs.