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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Aspects of Seismic Evaluation and Retrofit of Canadian Bridges
Author(s): D. Mitchell
Publication: Special Publication
Appears on pages(s): 169-190
Keywords: bridges; codes; ductility; earthquake-resistant
structures; evaluation; reinforced concrete; retrofit
Abstract:The approach for seismic evaluation and guidelines for seismic retrofit in the Canadian Highway Bridge Design code are presented. A number of common seismic deficiencies found in bridge structures are discussed. The reversed cyclic loading behavior of columns with lap splices at their bases, outrigger beam-column connections and columns with hinges at their bases are discussed. Methods suitable for retrofit of a number these deficiencies are described. The responses of these elements after these retrofit strategies had been carried out are also presented.
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