Seismic evaluation of FRP strengthened RC buildings subjected to near-fault ground motions having fling step

Mortezaei, A., Ronagh, H. R. and Kheyroddin, A. (2010) Seismic evaluation of FRP strengthened RC buildings subjected to near-fault ground motions having fling step. Composite Structures, 92 5: 1200-1211. doi:10.1016/j.compstruct.2009.10.017

Author Mortezaei, A.
Ronagh, H. R.
Kheyroddin, A.
Title Seismic evaluation of FRP strengthened RC buildings subjected to near-fault ground motions having fling step
Journal name Composite Structures   Check publisher's open access policy
ISSN 0263-8223
Publication date 2010-04
Year available 2009
Sub-type Article (original research)
DOI 10.1016/j.compstruct.2009.10.017
Volume 92
Issue 5
Start page 1200
End page 1211
Total pages 12
Editor A. J. M. Ferreira
Place of publication Barking, Essex, U.K.
Publisher Elsevier
Collection year 2011
Language eng
Formatted abstract
Recordings from recent earthquakes have provided evidence that ground motions in the near field of a rupturing fault differ from ordinary ground motions, as they can contain a large energy, or “directivity” pulse. This pulse can cause considerable damage during an earthquake, especially to structures with natural periods close to those of the pulse. Failures of modern engineered structures observed within the near-fault region in recent earthquakes have revealed the vulnerability of existing RC buildings against pulse-type ground motions. This may be due to the fact that these modern structures had been designed primarily using the design spectra of available standards, which have been developed using stochastic processes with relatively long duration that characterizes more distant ground motions. Many recently designed and constructed buildings may therefore require strengthening in order to perform well when subjected to near-fault ground motions. Fiber Reinforced Polymers are considered to be a viable alternative, due to their relatively easy and quick installation, low life cycle costs and zero maintenance requirements. This paper presents the results of a study of the response of typical existing RC buildings to near-fault ground motions and the potential improvements achievable after FRP retrofitting of the buildings. Results demonstrate the successful implementation of FRP with an improvement in stiffness, strength and lateral displacement capacity of the rehabilitated structure. It is demonstrated that strengthening with FRP is very effective in reducing drift demands for structures for a wide range of natural periods.
© 2009 Elsevier Ltd. All rights reserved.
Keyword Rehabilitation
Near-fault earthquake
Dynamic analysis
RC building
Concrete short columns
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online 11 November 2009. Website lists as available online 16 October 2009.

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
Official 2011 Collection
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 9 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 12 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Sun, 14 Mar 2010, 00:06:12 EST