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Flexural Behavior of Brittle RC Members Rehabilitated with Concrete Jacketing

Thermou, G.E.; Pantazopoulou, S.J.; Elnashai, A.S.

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Dr GEORGIA THERMOU Georgia.Thermou@nottingham.ac.uk
Assistant Professor in Structural Engineering

S.J. Pantazopoulou

A.S. Elnashai



Abstract

The composite flexural action of prismatic reinforced concrete (RC) members repaired/strengthened by RC jacketing was modeled with a dual-section approach. The model considers the relative slip at the interface between the existing member and the jacket and establishes the mechanisms that are mobilized to resist this action, thereby supporting composite behavior. An iterative step-by-step incremental algorithm was developed for calculating the overall flexural response curve. Consideration of frictional interlock and dowel action associated with sliding at the interfaces as well as the spacing and penetration of flexure-shear cracks are key aspects of the algorithm. The proposed procedure was verified through comparison with published experimental data on RC jacketed members. The sensitivity of the upgraded member’s flexural response to jacket design variables was investigated parametrically. Monolithic response modification factors related to strength and deformation indices were evaluated and the sensitivity of the model was assessed.

Citation

Thermou, G., Pantazopoulou, S., & Elnashai, A. (2007). Flexural Behavior of Brittle RC Members Rehabilitated with Concrete Jacketing. Journal of Structural Engineering, 133(10), 1373-1384. doi:10.1061/(asce)0733-9445(2007)133:10(1373)

Journal Article Type Article
Acceptance Date Mar 9, 2007
Online Publication Date Oct 1, 2007
Publication Date 2007-10
Deposit Date Dec 10, 2018
Publicly Available Date Dec 20, 2018
Journal Journal of Structural Engineering
Print ISSN 0733-9445
Electronic ISSN 1943-541X
Publisher American Society of Civil Engineers
Peer Reviewed Peer Reviewed
Volume 133
Issue 10
Pages 1373-1384
DOI https://doi.org/10.1061/%28asce%290733-9445%282007%29133%3A10%281373%29
Public URL https://nottingham-repository.worktribe.com/output/1394997

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