INSTALLATION OF AN OVERHEAD CABLE ANCHORAGE SYSTEM

Table 13. Determination of Bearing Plate Dimensions x and y (in Inches) for Formed Bearing Plates.

TM-5-5420-278-10 M85 Tank Chassis Transporting: for Bridge Armored-Vehicle-Launched Scissoring Type Class 80 Manual
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TM 5-5420-278-10 0035 00 0035 00-28 BRIDGE ANCHORAGE (Contd) INSTALLATION OF AN OVERHEAD CABLE ANCHORAGE SYSTEM When constructing an overhead cable system to be used as the primary (upstream) anchorage system for a bridge, construct this system at the same time as the bridge. As bridge bays are brought and connected to the bridge, connect them to the overhead cable using bridle lines. Usually, one engineer platoon has sufficient personnel to construct a complete single cable overhead anchorage system. When practical, the work on the far shore should progress simultaneously with the work on the near shore. a. Organization. Table 14 provides a list of tasks to accomplish when constructing an overhead cable system. A suggested crew size for each task is also given. TASK CREW SIZE NCO EM Far shore: Install deadman . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 Erect tower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 8 Adjust cable to tower and deadman . . . . . . . . . . . . . 1 2 Install approach guys . . . . . . . . . . . . . . . . . . . . . . . 1 2 Near shore: Install deadman . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 Erect tower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 8 Adjust cable to tower and deadman . . . . . . . . . . . . . 1 2 Install approach guys . . . . . . . . . . . . . . . . . . . . . . . 1 2 Over the water: Transport cable to far shore . . . . . . . . . . . . . . . . . . 1 2 Attach bridle lines . . . . . . . . . . . . . . . . . . . . . . . . . . 1 4 Table 14. Organization for Construction of Overhead Cable System. b. Installation of Deadman. (1) Cut deadman to length and attach bearing plates as specified by the design procedure. (2) When installing a deadman, dig a hole or trench perpendicular to the cable to be attached to the deadman. Place the deadman in this hole. Dig a sloping trench, which has the same slope as the cable, in front of the hole in which the deadman is placed. This will allow the cable free access to the deadman. (Refer to figure 15.)

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