B&B ARMR’s Crash Beam Barriers Gates are engineered and designed to
protect at-risk access points and prevent forced vehicle entry or exit
for industrial, commercial and institutional facilities requiring medium
to high security. Available in manual, hydraulic or electromechanical
operating modes, the crash beam barrier gates are ideally suited and for
oil refineries, chemical plants, train yards, storage facilities,
technical centers, nuclear facilities, embassies, military installations
and government agencies.
B&B ARMR’s crash beam models have a minimum gate opening of 12 feet (3.7
m) and a maximum of 28 feet (8.5 m). The units are capable of
immobilizing a 10,000 lb. (4,535.9 kg) vehicle traveling 18 mph (29.0
km/h) to 20 mph (32.2 km/h) with a penetration depth ranging from 18 to
20 feet (5.5 to 6.1 m). Basic components of the crash beam barriers
include the standard vertical to horizontal arm with an energy
absorption cable assembly, hinge post, receiver/latch post,
cable-reinforced crash beam and automatic controls.
With a gate arm made of 4-inch 6061-T6 aluminum pipe lined with a
7/8-inch annealed, stainless steel wire rope, B&B ARMR’s crash barriers
have been successfully crash tested for energy absorption capacity per
U.S. Navy Specifications and Department of the Army rating level of
KN1-LN2. Models CR-25 and CR-25M are listed by the U.S. Army Corps of
Engineers in the document, Protection Against Malevolent Use of Vehicles
at Nuclear Power Plants (NUREG/CR-6190 Vol. 2, Rev. 1).
When the crash beam is hit by a vehicle, the aluminum beam gives way to
the cable inside, and the impact energy is absorbed as the cable
stretches. When the cable is at full tension, the impact energy is then
transferred to the foundation through the hinge post and the
receiver/latch post of the crash beam.
B&B ARMR’s Crash Beam Barriers are available with several enhancement
options to easily adapt to suit any user’s needs. For extremely cold
weather, the receiver/latch post may be equipped with a heater for
uninterruptible operation or an electromagnetic lock can be installed
for additional security during unattended times. Manual unit, Model 714,
may be raised and lowered by one person without the use of counter
weights, and Model 712-P is a portable vehicle barrier designed for fast
installation in areas where a permanent barrier in not available.
