This 2,100-foot KCS-Redland Bridge, operated by Kansas City Southern Railway, was the first major steel-deck railway bridge in the United States and weighs approximately 2,400 tons. After experiencing issues with critical bolted connections on the Arkansas River Bridge near Redland, Oklahoma, the Engineering Firm Wiss, Janney, Elstner & Associates examined and tested these connections using various testing equipment such as strain gauges. After analyzing the results of the tests, Wiss, Janney, Elstner & Associates suggested using LeJeune Bolt’s Torque and Angle Fastening System to help eliminate the structural problems and deliver a higher clamp load then what was currently in place.
Due to the large box girder design, it was essential to utilize a single sided installation fastener with enough tension to satisfy the design criteria. Each section of the box girder measured 20 ft by 15 ft and stretched anywhere from 42 to 117 ft. Having to replace bolts in 24 individual box units, in almost complete darkness, seemed like an impossible task. With workers requiring flashlights and safety harnesses, the confined space proved to be challenging. With a limited workspace and a multitude of items each ironworker needed to carry between connections, they were looking for any way possible to simplify this operation. By using the Torque and Angle Fastening System, the ironworkers were able to expedite replacing the older bolted connections and still offer a consistent and reliable connection every time. They were also able to get rid of the deafening impact wrenches and use a much quieter more accurate electric wrench to perform installation. Speed, consistency and safety are just a few of the Torque and Angle Fastening System benefits that appear on every job.