A novel technique for the retrofitting of reinforced concrete structures

Martinez-Rueda, J.E. and Elnashai, A.S. (1995) A novel technique for the retrofitting of reinforced concrete structures Engineering Structures, 17 (5). pp. 359-371. ISSN 0141-0296

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Abstract

A novel technique to enhance the seismic behaviour of existing RC framed structures is proposed. The technique is based on the introduction of friction devices in the vicinity of the expected plastic hinges in the original structure. The proposed technique is applied to an existing RC soft storey building. Static and dynamic time-history nonlinear analyses are conducted on a simplified model. The efficiency of the proposed upgrading technique is evaluated in terms of strength, stiffness and energy dissipation. A comparison between the behaviour of the original and the upgraded structures shows that the proposed technique is effective in reducing seismic vulnerability. Most of the hysteretic energy is dissipated by friction in the added devices, rather than by damage in the members of the structure. The proposed technique is less invasive than conventional upgrading methods such as steel bracing systems with supplemental damping devices.

Item Type: Journal article
Uncontrolled Keywords: friction device; energy dissipation; damped structure; seismic retrofitting; soft storey
Subjects: H000 Engineering > H200 Civil Engineering > H250 Geotechnical Engineering
H000 Engineering > H200 Civil Engineering > H210 Structural Engineering
H000 Engineering > H200 Civil Engineering
DOI (a stable link to the resource): 10.1016/0141-0296(95)00019-4
Faculties: Faculty of Science and Engineering > School of Environment and Technology > Ground water and structural engineering
Faculty of Science and Engineering > School of Environment and Technology
Depositing User: editor environment
Date Deposited: 05 May 2010
Last Modified: 09 May 2012 13:50
URI: http://eprints.brighton.ac.uk/id/eprint/7144

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