Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Analytical Evaluation of Retrofit Strategies for Multi-Column Bridges
Many retrofit measures have been proposed and then implemented into existing highway bridges. The goal of seismic strenghtening is not intended to retrofit a bridge to be 'earthquake-proof', but to minimize the likelihood of structural collapse. An amount of acceptable damage may occur during a design level earthquake. The combination of retrofit measures and the acceptable damage greatly complicates the structural properties for a bridge. It is necessary to use analytical and experimental means to verify the effectiveness of various retrofit combinations. The objectives of this research are: (1) to investigate analytically the feasibility and advantages of applying the retrofit measures developed for single-column bent bridges to multi-column bent bridges; (2) to evaluate analytically the effects and benefits of current column retrofit strategies for multi-column bridges and propose the most effective measures for strengthening bridges; (3) to evaluate the performance of earthquake restrainers and find the change of seismic loads and displacements caused by their installation.
Analytical Evaluation of Retrofit Strategies for Multi-Column Bridges
Many retrofit measures have been proposed and then implemented into existing highway bridges. The goal of seismic strenghtening is not intended to retrofit a bridge to be 'earthquake-proof', but to minimize the likelihood of structural collapse. An amount of acceptable damage may occur during a design level earthquake. The combination of retrofit measures and the acceptable damage greatly complicates the structural properties for a bridge. It is necessary to use analytical and experimental means to verify the effectiveness of various retrofit combinations. The objectives of this research are: (1) to investigate analytically the feasibility and advantages of applying the retrofit measures developed for single-column bent bridges to multi-column bent bridges; (2) to evaluate analytically the effects and benefits of current column retrofit strategies for multi-column bridges and propose the most effective measures for strengthening bridges; (3) to evaluate the performance of earthquake restrainers and find the change of seismic loads and displacements caused by their installation.
Analytical Evaluation of Retrofit Strategies for Multi-Column Bridges
W. F. Cofer (Autor:in) / D. I. McLean (Autor:in) / Y. Zhang (Autor:in)
1997
252 pages
Report
Keine Angabe
Englisch
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