Title
LRFD flexural provisions for prestressed concrete bridge girders strengthened with carbon fiber-reinforced polymer laminates
Abbreviated Journal Title
ACI Struct. J.
Keywords
polymer; prestressed concrete; rehabilitation; COMPOSITE-MATERIALS; SYSTEM RELIABILITY; HIGHWAY BRIDGES; RC BEAMS; RESISTANCE; LOAD; Construction & Building Technology; Engineering, Civil; Materials; Science, Multidisciplinary
Abstract
The behavior and design of prestressed concrete (PSC) bridge girders flexurally strengthened with carbon fiber-reinforced polymer (CFRP) laminates are discussed. A fiber section model that accounts for inelastic material behavior as well as the construction sequence including transfer composite action between the cast-in-place deck and girder, and bonding of CFRP laminates, is developed. The model is verified and is then used to conduct thousands of Monte Carlo simulations of a number of bridges designed according to the 1998 AASHTO LRFD. The bridge designs address a broad range of design parameters including span length, ratio of dead load to live load, and amount of CFRP strengthening. The numerical simulations are used to develop cross-sectional resistance models from which the flexural reliability of the designed bridges is calculated using the first-order reliability method. An equation for the flexural strength reduction factor for PSC bridge girders strengthened with CFRP laminates is proposed.
Journal Title
Aci Structural Journal
Volume
99
Issue/Number
2
Publication Date
1-1-2002
Document Type
Article
Language
English
First Page
181
Last Page
190
WOS Identifier
ISSN
0889-3241
Recommended Citation
"LRFD flexural provisions for prestressed concrete bridge girders strengthened with carbon fiber-reinforced polymer laminates" (2002). Faculty Bibliography 2000s. 3181.
https://stars.library.ucf.edu/facultybib2000/3181