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Cable railings, or wire rope railings, are safety rails that use horizontal or vertical cables in place of spindles, glass and mesh for infill. Cable railing on residential deck overlooking a lake Uses
A popular alternative to wood railing is composite lumber and PVC railing. [3] [4] [5] Cable railings typically use stainless steel cables strung horizontally. Stainless-steel cable and fasteners are strong and don’t obscure the view. Contemporary frame systems use plastic-coated steel cables. [6]
All cable barrier systems available today are approved at either TL-3 or TL-4. There is a great deal of anecdotal evidence, however, that many of these systems are performing at a higher level in the field capturing vehicles as large as semi truck-trailer combinations .
Modern systems, called ground-level power supply, use a segmented rail flush with the surface of the road instead of a conduit, and the rail segments are only powered when an appropriate vehicle is over them. Alstom APS was the first modern commercial ground-level power supply system, first installed commercially in Bordeaux.
These systems typically operate in conjunction with wire-guided or rail-guided reach-truck systems. A wire-guided system consists of a wire embedded in the concrete floor that provides tracking for the reach-truck. A rail-guided system consists of angle iron bolted to the floor down the length of each row.
The load path of the self-anchored suspension (SAS) bridge converts vertical loads into tension forces in the main cables which are countered by compressive forces in the towers and deck. The system balances forces internally without external anchorage requirements, making it suitable for sites where large horizontal forces are difficult to anchor.
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