The load-bearing cable in the cross-space cable truss pipe bridge cable project adopts 1670MPa low relaxation galvanized steel stranded wire harness 7 Both the cable clamp and the hanger cable clamp are hot-dip galvanized on the surface after hot bending of the steel plate. Two semi-circular tubular splints are bolted, and the outer surface of the splint is smoothed and rubberized to prevent the plastic body from being damaged. Since the angle between the cable hanger and the cable is constantly changing, in order to avoid the unfavorable torsion force at the cable clamp, the hole for fixing the hanger on the cable clamp plate is designed to be crescent-shaped to adapt to the change of the angle of the cable body in a catenary shape. In order to prevent the cable clamp from sliding down, an anti-sliding pull rod is additionally arranged between the load-bearing cable clamps with large inclination, and the high end portion of the connecting pull rod is fixed on the cable saddle of the cable tower. The boom fixed to the load-bearing cable is made of <25mm round steel, and the boom fixed to the stabilizer cable is made of <20mm round steel. Each boom has a basket screw adjustment sleeve to adjust the installation length. The saddle on the tower is fixed and semi-circular. Considering the minimum bending diameter of the cable is 800mm, it is welded by steel plate. The load-bearing cable is placed in the arc-shaped groove of the cable saddle, and the PTFE plastic plate which can allow the cable body to slide is pressed by the curved cover plate after the cable is prestressed and tensioned. The stable cable saddle is rotary.
The load-bearing cable anchor adopts a fixed hole clip anchor with a loosening device. The end of the load-bearing cable is an extruded anchor at one end and a clip anchor with a single-hole anti-loose device at the other end. The stabilizing cable anchor adopts a processed single-hole clip anchor with a locking device.
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