My first Magazine dsi-info-23-en | Page 138

Construction—North America—USA—Bridges Large Scale Use of DYNA Force ® Sensors and DYNA Grip ® Stay Cables: The Abraham Lincoln Bridge in Louisville The Abraham Lincoln Bridge is part of the large infrastructure project “Ohio River Bridges Downtown Crossing” in Louisville, Kentucky, USA. The bridge that was originally named Louisville Downtown Crossing accommodates northbound traffic of the Interstate I-65 and connects the center of Louisville in Kentucky with Jeffersonville in Indiana. In the meantime, the structure has been named after Abraham Lincoln, the 16 th president of the USA, who was born in Kentucky in the 19 th century and grew up in Indiana. The Abraham Lincoln Bridge runs parallel to the John F. Kennedy Memorial Bridge, which was opened to traffic in 1963, and will accommodate all northbound I-65 traffic once the project has been completed. The John F. Kennedy Memorial Bridge will then carry southbound traffic. The new bridge was built as a stay cable bridge with three pairs of pylons. The stay cables hold the six lane composite steel/ concrete deck in place. The bridge has a 138 total length of approximately 642m (2,106ft) and consists of two 228.6m (750ft) long main spans and two 92.35m (303ft) long side spans. For this project, DSI produced and supplied the DYNA Grip ® Stay Cable System as well as the DYNA Force ® Measuring System including equipment. Furthermore, DSI provided technical assistance and on-site supervision. Before installation started, DSI performed two successful full-size tests with Type DG-P37 and DG-P109 DYNA Grip ® Stay Cables. In total, 176 DYNA Grip ® Stay Cables including anchorages and 597t of strand were needed: ■ ■ 40 Type DG-P37 Stay Cables ■ ■ 56 Type DG-P48 Stay Cables ■ ■ 32 Type DG-P55 Stay Cables ■ ■ 8 Type DG-P73 Stay Cables ■ ■ 8 Type DG-P91 Stay Cables ■ ■ 32 Type DG-P109 Stay Cables DSI also supplied 88 internal hydraulic dampers. The DYNA Grip ® Stay Cables were successfully