STRUCTURAL STRENGTHENING, TYFO® SYSTEM
The structural engineer of record determined that the reinforced concrete beams supporting this museum’s floor needed to be strengthened to accommodate new loading – a 67-million-year-old fossil exhibit known as the “Dueling Dinosaurs!” Buried side by side during the Late Cretaceous period on a subtropical coastal plain in what is now Montana, the “Dueling Dinosaurs are among the most complete skeletons ever discovered of the two most iconic dinosaurs – Triceratops and Tyrannosaurus rex – including what is thought to be the only 100% complete skeleton of a T. rex known anywhere in the world.
Such a monumental discovery warranted a state-of-the-art exhibit which, in turn, required an increase in the shear capacity of the supporting floor beams. Fyfe’s Tyfo® SCH-41 Fibrwrap® system was used to supplement the shear capacity of the existing reinforced concrete floor beams. This was accomplished by orienting the unidirectional carbon fiber system in a “U-Wrap,” with the primary fibers running transversely to the axes of the beams.
Like all projects, this one was not without its challenges. The existing concrete beams were coated in a fire protection system, which needed to be removed prior to the installation of the Tyfo® SCH-41 Fibrwrap® system. Adhesion testing was performed to confirm an adequate bond between the substrate and the Tyfo® SCH-41 Fibrwrap® system. Witness panels were also created onsite and sent to an independent laboratory for ASTM D3039 testing to confirm the design properties of the Tyfo® SCH-41 Fibrwrap® system.
Project: North Carolina Museum of Natural Sciences Dueling Dinosaurs Exhibit
Location: North Carolina