Presentation on theme: "Christopher Higgins, PhD, PE Deanna Amneus, MS Student Laura Barker, MS Student December 6, 2012."— Presentation transcript:
Christopher Higgins, PhD, PE Deanna Amneus, MS Student Laura Barker, MS Student December 6, 2012
Many constructed in 1950s (Eisenhower Defense Highway System) Design standards have changed since built Loads more frequent and heavier Many are now cracked and deficient
Problem with poor details (reinforcing steel terminated in locations that show cracking) that can lead to member failure Many existing bridges with these reinforcing details cannot carry required truck loads by calculation Need new methods to strengthen these bridges Titanium looks promising: high strength, good stiffness match with adhesives, bendable and field adjustable, and durable. Material cost may not drive issue. Labor!