A revised design for the new Heathrow Terminal 2 multi storey car park called for a floor depth of just 150mm comprising a 60mm deep slab with 90mm structural topping. However, and there’s always a however, a traditional rigid safety barrier post needs fixing with 4 bolts each to a depth of 170mm.
Obviously these couldn’t be used so contractors Laing O’Rourke turned to barrier specialists Berry Systems to provide a solution and appropriate perimeter barriers for the 6 decks and the spiral entrance and exit ramps. Over many years Berry Systems have developed a range of flexible spring steel barriers that ‘give’ on impact. This not only reduces damage to both the barrier and an impacting vehicle but crucially reduces the pull out loading on the anchorage by 50% or more.
The specification was completed with Berry Beam safety rails to provide a more attractive appearance than the well known “Armco” style. Post extensions provided mountings for a pedestrian handrail at 1100mm high with integral anti-climb mesh where needed.