This type of wire rope safety barrier is a kind of highway fence keeping vehicles within the limits of correct way. The wire cable barrier is made with three, four, five or six high tensile steel wire ropes, firmly mounted on the steel post at certain spacing to form a flexible guard barrier. The more number of the wire cables, the much strength the barrier offers.
Compared to the corrugated steel highway guardrail beams, the cable barrier costs less and the installation is much easier. It serves as an effective high barrier for absorbing most sudden impact energy during collision and also for redirection of errant vehicles.
Compared with beam guardrails, using wire cable barrier offering the following benefits:
Less metal material used, low cost;
Easy to install and repair;
Cable tension can be adjusted by changing of wire cable numbers and spacing;
Post space can be adjusted;
Work effectively;
Good looking for open scenic spots.
Wire Cable Guardrail Specifications:
Hot Dipped Galvanized Wire Cable Barrier |
|
Material |
High tensile steel |
Surface Treatment: |
Hot dipped galvanized |
Cable Diameter |
15-30mm |
Wire Construction |
Twisted Wire. 3×7 |
Zinc coating thickness
Cable Numbers |
100 g/m2 Min. or custom 2,000 to 9,000 lb. 3, 4, 5, 6 or custom |
Three Major Factors Determining the Efficiency of Cable Barriers:
First, cable numbers:
Three of four cables are commonly used. Five or six layer wire cables are used for reinforced guard railings. Generally, more cables, the higher ability to redirect the errant vehicles.
Second, spacing of wire cables and posts:
The barrier post often installed with spacing from 6.3 to 32.6 ft. The longer spacing normally means the higher deflection distance.
Thirdly, tensioning:
Cables are fixed on the post and tightened to specific tension in accordance with the local temperature and environment. After tensioning, the reflection will be reduces and the ability to preventing vehicles from skidding off the road can be enhanced. Normally the tensions values range approximately from 2,000 to 9,000 lb.