Title:
Titanium Finds a Home in Civil Engineering
Author(s):
Jill Adkins and Warren George
Publication:
Concrete International
Volume:
39
Issue:
12
Appears on pages(s):
51-55
Keywords:
bridge, bars, strengthening, test
DOI:
10.14359/51701342
Date:
12/1/2017
Abstract:
The Oregon Department of Transportation has completed a bridge rehabilitation project using titanium bars. Girders on three of the four bridge spans of an overpass near Mosier, OR, were strengthened using a total of 70 titanium near surface mounted bars, a solution based on research conducted at Oregon State University. In addition to high tensile strength, ductility, and environmental durability, titanium offers high shear strength and resistance to mechanical damage, high maximum service temperature, and thermal expansion compatibility with concrete.
Related References:
1. Higgins, C., “Renewal of Aging and Deteriorated Reinforced Concrete Bridges with Titanium Alloy Bars (TiABs),” Western Engineers’ Bridge Seminar, Portland, OR, Sept. 6-8, 2017.
2. Higgins, C.; Knudtsen, J.; Amneus, D.; and Barker, L., “Shear and Flexural Strengthening of Reinforced Concrete Beams with Titanium Alloy Bar,” Proceedings of the 2nd World Congress on Civil, Structural, and Environmental Engineering (CSEE’17), Barcelona, Spain, Apr. 2017.
3. Higgins, C.; Amneus, D.; and Barker, L., “Methods for Strengthening Reinforced Concrete Bridge Girders Containing Poorly Detailed Flexural Steel Using Near-Surface Mounted Metallics,” Report No. FHWA-OR-RD-16-02, Oregon Department of Transportation, Salem, OR, 2015, 138 pp.
4. Higgins, C., “Titanium Reinforcing for Strengthening RC Bridges,” International Bridge Conference, Pittsburgh, PA, June 2015.
5. Strauser, P., “Good Bridges, Bad Details, and Ugly Cracks: A Study in Titanium Alternative to Fiber Reinforced Polymers,” Western Bridge Engineers’ Seminar, Reno, NV, Sept. 9-11, 2015.