Configuration Of Support And Hanger
1, indoor support, hanging short span generally take 1.5-3m. The span of outdoor columns generally takes 6m.
2, non-linear segments of the support, hanger configuration follow the following principles. When the width of the bridge is <300mm, a support and hanger shall be arranged on the side of the straight line segment of 300-600m from the non-linear segment and the straight line. When the bridge width >300mm, in addition to the following conditions, in the middle of non-linear segments should also be added a support, hanger.
3. The Interlayer Center distance is 200,250,300,350mm when the overhead of the bridge is set.
4, the bridge Frame line section every 50m should be retained expansion joints 20-30mm (metal bridge).
Requirements for the Fireproof section of the bridge must be made of steel or non-flammable and flame retardant materials. My company produces BJ Ⅲ series of cable tray are fire-proof bridge.