Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/17685
Title: Damage and Seismic Performance Assessment of FRP-Retrofitted Multi-Storey RC Buildings
Contributor(s): Mahini, Seyed Saeid  (author)
Publication Date: 2015
Handle Link: https://hdl.handle.net/1959.11/17685
Abstract: Structures should be designed for a long in-service life at the lowest cost. Performance based design (PBD) can be used for damage and performance assessment of older FRP-retrofitted multi-storey RC moment resisting frames (MRFs). PBD can be performed using nonlinear pushover analysis according to current codes. In this paper, performance of an existing/older RC frame that has been retrofitted with steel-braced by other researchers is assessed in order to evaluate the ability of the FRP-web bonded system to upgrade the performance level and ductility of RC MRFs. Initially, the flexural stiffness of FRP-retrofitted exterior and interior joints of each level of an existing RC ordinary moment resisting frame (OMRF) is determined using nonlinear finite element (FE) analysis. The stiffness obtained is then used in a mathematical model for pushover analysis of the FRP-retrofitted frame. The plain and the retrofitted frames (both steel-braced and FRP-retrofitted) are analysed using a nonlinear pushover analysis method. The seismic performances of the retrofitted frames are then compared with the plain frame. Finally, the global damage index of the frames at the performance point (and at the life safety (LS)) are determined from the capacity curves and discussed. This evaluation demonstrates that the damage degree of the frame is reduced after retrofitting particularly by FRP. In addition, the FRP-retrofitted frame has a lower damage index at the LS level.
Publication Type: Journal Article
Source of Publication: Electronic Journal of Structural Engineering, 14(1), p. 49-61
Publisher: EJSE International Ltd
Place of Publication: Australia
ISSN: 1443-9255
Fields of Research (FoR) 2008: 090505 Infrastructure Engineering and Asset Management
090506 Structural Engineering
090504 Earthquake Engineering
Fields of Research (FoR) 2020: 400508 Infrastructure engineering and asset management
400510 Structural engineering
400506 Earthquake engineering
Socio-Economic Objective (SEO) 2008: 960609 Sustainability Indicators
961208 Rehabilitation of Degraded Urban and Industrial Environments
961010 Natural Hazards in Urban and Industrial Environments
Socio-Economic Objective (SEO) 2020: 180206 Rehabilitation or conservation of coastal or estuarine environments
180307 Rehabilitation or conservation of fresh, ground and surface water environments
190209 Sustainability indicators
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Publisher/associated links: http://ejse.org/Archives/Fulltext/2015-1/2015-1-5.pdf
Appears in Collections:Journal Article

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