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Title: Seismic Vulnerability and Retrofitting of Gravity Load Designed RC Buildings
Keywords: Concrete high rise buildings, ductile shear failure, FRP retrofit, GLD Building, T-beam-wide-column joint, Seismic vulnerability
Issue Date: 27-Sep-2012
Source: AZIZ AHMED (2012-09-27). Seismic Vulnerability and Retrofitting of Gravity Load Designed RC Buildings. ScholarBank@NUS Repository.
Abstract: Buildings in Singapore were designed without any seismic provisions, some of which may suffer damage due to the worst possible earthquake occurring in Sumatra. This study aims to estimate the ultimate seismic capacity of these buildings based on displacement capacity. Shear hinges were used to model ductile shear behavior of typical columns and shear walls, and two different building types were considered. Tests on wide columns and T beam wide column joints were used to verify FEA models that were used for further parametric studies. A practical FRP retrofit technique was applied to determine its effectiveness on such joints. Using the test and FEA results, appropriate constitutive relationships were proposed for macro finite element analysis. A demand envelope for Singapore soils and a new damage index were proposed in this study to determine the performance of the buildings under seismic actions.
Appears in Collections:Ph.D Theses (Open)

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