The Wire-Rope Slotted-Post Crash Barrier

摘要

An efficient form of crash barrier developed by the Road Research Laboratory involves the use of tensioned horizontal members carried on relatively weak vertical supports. The report describes a series of tests carried out on wire rope barriers of this type in order to select the most suitable detailed design. Twenty-eight dynamic tests were carried out on alternative designs of barrier in which the ropes rested in vertical slots cut into the tops of weak I-section mild steel posts. Most of the tests were carried out with cars weighing 3000 lb, but in some tests concerned with optimum rope heights small vehicles and tall vehicles were used. Impact speeds ranged from 17 to 67 mile/h at nominal angles to the line of the barrier of 10 deg. and 20 deg. (Author)