Semester

Spring

Date of Graduation

2023

Document Type

Thesis

Degree Type

MS

College

Statler College of Engineering and Mineral Resources

Department

Civil and Environmental Engineering

Committee Chair

P.V. Vijay

Committee Co-Chair

Hota V.S. GangaRao

Committee Member

Chao Zhang

Abstract

Advanced fiber-reinforced polymer (FRP) composites are being used as mainstream structural materials to build complex infrastructure systems. Such application of FRP composites can be attributed to their high strength-to-weight and stiffness-to-weight ratios, corrosion resistance, higher energy absorption, durability, and competitive life-cycle costs. FRP composites are increasingly being considered as suitable alternative structural materials to traditional construction materials such as timber, concrete, and steel.

In this work, detailed experimental investigation has been carried out on different types of glass FRP composite pedestrian bridges with FRP and/or timber deck. Four full-scale FRP pedestrian bridges, including 70`×8.5’ and 70’×10’ single-span bridges, a 16’×8’ double-span bridge and a 26’×8’ single-span bridge were evaluated. Testing was conducted at coupon, component, and system-levels. Coupons and individual component characterization was conducted to determine the stresses, strains, failures, and associated factors of safety. Strains and deflection were measured on various members of the bridges at different locations under the application of loads equivalent to H5 vehicle, 100 psf Uniform Dead Load (UDL), lateral wind load, and equestrian loads. Dynamic excitation tests were conducted on the 70’ long single span bridges to establish their natural frequencies in the lateral and longitudinal direction and compared with AASHTO Guide Specifications FRP Pedestrian Bridge standards. The structural response and modifications related to the design and performance of the pedestrian FRP bridge are discussed in this work.

Embargo Reason

Publication Pending

Download

Share

COinS