Evaluation of bond design specifications for concrete girders strengthened with CFRP laminates

Author

Feifei Lu

Keywords and Phrases

Bond-slip; Debonding failure

Abstract

"Externally bonded carbon fiber reinforced polymer (CFRP) laminates are a feasible and economical alternative to traditional methods for strengthening and stiffening deficient reinforced concrete and prestressed concrete girders. The bond between FRP and concrete is the key factor controlling the behavior of concrete structures that are strengthened with FRP composites. Several experiments show that debonding failure happens frequently before FRP rupture, and therefore the FRP strength cannot be fully utilized. For design accuracy, the FRP strength must be reduced due to the debonding failure. This paper analyzes the effect of the strengthening technique on the response and failure modes of RC beams. A non-linear RC beam element model with bond-slip between the concrete and the FRP laminates is used to study the reduction factor of FRP tensile strength of simply supported strengthened RC beams"--Abstract, page iii.

Advisor(s)

Ayoub, Ashraf Salah Eldin

Committee Member(s)

Silva, Pedro Franco
Chandrashekhara, K.

Department(s)

Civil, Architectural and Environmental Engineering

Degree Name

M.S. in Civil Engineering

Sponsor(s)

Center for Repair of Building & Bridges with Composites

Publisher

University of Missouri--Rolla

Publication Date

Spring 2006

Pagination

xi, 108 pages

Rights

© 2006 Feifei Lu, All rights reserved.

Document Type

Thesis - Citation

File Type

text

Language

English

Subject Headings

Fiber-reinforced plastics -- Mechanical propertiesReinforced concrete -- TestingReinforced concrete construction

Thesis Number

T 8944

Print OCLC #

83305386

Recommended Citation

Lu, Feifei, "Evaluation of bond design specifications for concrete girders strengthened with CFRP laminates" (2006). Masters Theses. 3865.
https://scholarsmine.mst.edu/masters_theses/3865