CONCRETE CAST IN PLACE
STEEL MDS® BARRIERS
BRIDGE DECK EXAMPLES USING MDS® SYSTEMS
The ever-increasing need around the world for the development of safe, aesthetic, and efficient roadside and center median safety barrier has become a mandatory requirement for motorist safety and worker protection.
As new emerging technology and materials change and improve industry standards while taking into account the increasing size and number of vehicles on our nation's roadways, it is essential that our road infrastructure can provide safer alternatives to current concrete barriers by providing safe energy absorbing vehicle impact solutions. All safety barriers should be strong enough to handle the impacting force of a collision while equally have the ability to absorb enough energy from an impact decreasing the blunt forces to the driver and reducing vehicle damage.
What about the road surface after a collision?
Driving by and accident is a visual experience, but what we do not see is a damaged infrastructure or the weakening of a bridge deck that may require inspection, testing, engineering and costly repairs.
How do MDS® TL4 and TL5 Barriers differ from traditional barrier and bridge rail systems?
Most all barriers that require Minimal Deflection Systems are made of concrete or concrete bases with railings. The concrete barriers are cast into the road surface or bridge deck while surface mount concrete barriers are bolted every 12 inches or 24 inches through the bridge deck piercing the membrane and creating water infiltration if not properly sealed. This does not include the intensive work labor and time required to install barriers through the underside of the bridge deck. Since Concrete barriers are a solid impact with “No Energy Absorption” they create dead weight and internal bridge deck stress damage during the collision force of a heavy vehicle. As bridges age, they weaken and need to be reevaluated for safety and weight tolerances. MDS® BARRIERS reduce crash impact transmission forces of over 6x when compared to concrete.
Contact us today and discover lightweight, modular steel MDS® TL4 and TL5 BARRIERS that will save time and money while contributing to the evolution of energy absorbing safety barriers.
MDS® BARRIERS are all steel modular barrier system with safety-shape panels that have design dimensions that place it between the conventional dimensions of the New Jersey shape and the F shape barrier. The MDS® is profiled with two corrugated concave ribs on the traffic face and a circular steel tube top rail contributing to its structural rigidity and performance
MDS® TL4 & MDS® TL5 barrier systems have been developed to incorporate both a crash-tested barrier safety system and an optional noise wall that can be used in both permanent and temporary construction. The new MDS® barrier systems provide protection against the collision of vehicles, noise pollution and projectiles.
Reduced lateral impact force on bridge deck by mounted barriers is achieved through MDS® BARRIERS exclusive anchoring system that takes advantage of a unique design identified as Progressive SRS© (Stress Reduction System).This innovative technology reduces deck forces more than 4.2 kips/ft (61 kN/m) of lateral load and 15.3 ft-kips/ft (68 kN-m/m) of bending moment while the barrier is subjected to a tractor trailer impact test weighing 83,775 lbs.
MDS® “SRS” Technology is available in two models:
Unlike concrete mounted and anchored every 1 to 2 feet, MDS® BARRIERS with Stress Reduction System require an embedment depth of only *5 inches every 10 feet.
*Anchoring may vary on concrete PSI and surface conditions
Road & Bridge Barrier Systems
TL3 TL4 TL5
Portable and permanent barrier solutions available for purchase or rental
Tel: (860) 289-8033