Experimental and Numerical Studies on Effectiveness of Hybrid FRP Strengthening on Behavior of RC Columns under High Eccentric Compression

Chellapandian, M and S, Suriya Prakash and Mahadik, Vinay and Sharma, Akanshu (2019) Experimental and Numerical Studies on Effectiveness of Hybrid FRP Strengthening on Behavior of RC Columns under High Eccentric Compression. Journal of Bridge Engineering, 24 (6). pp. 1-15. ISSN 1084-0702

Full text not available from this repository. (Request a copy)

Abstract

This paper discusses the efficacy of different fiber-reinforced polymer (FRP) techniques on the behavior of RC columns under uniaxial high eccentric compression. Eight RC columns were strengthened using three FRP strengthening schemes: (1) near surface mounting (NSM), (2) external bonding (EB), and (3) hybrid strengthening, which uses a combination of NSM and EB. All the columns were tested under an eccentricity (e) to column depth (h) ratio of 0.63. The results obtained from the experiments were compared with the results of numerical analysis using the finite-element (FE) software developed at the University of Stuttgart. The hybrid FRP-strengthened specimens showed better performance compared with only NSM or EB in enhancing the peak strength and ductility by 51% and 277%, respectively, when compared with the control RC columns. Moreover, the brittle bond failure typically observed in NSM-strengthened columns was effectively prevented through FRP confinement in hybrid strengthening. The FE modeling approach developed in this work effectively captured the overall behavior of RC columns under eccentric compression. An extensive parametric analysis using the validated modeling approach was performed to quantify the effectiveness of the different strengthening techniques for a wider range of design parameters.

[error in script]
IITH Creators:
IITH CreatorsORCiD
S, Suriya Prakashhttp://orcid.org/0000-0003-0319-1773
Item Type: Article
Subjects: Civil Engineering
Divisions: Department of Civil Engineering
Depositing User: Team Library
Date Deposited: 15 Apr 2019 04:08
Last Modified: 15 Apr 2019 04:08
URI: http://raiith.iith.ac.in/id/eprint/4947
Publisher URL: http://doi.org/10.1061/%28ASCE%29BE.1943-5592.0001...
OA policy: http://sherpa.mimas.ac.uk/romeo/issn/1084-0702/
Related URLs:

Actions (login required)

View Item View Item
Statistics for RAIITH ePrint 4947 Statistics for this ePrint Item