Reinforced concrete and masonry arch bridges in seismic areas: typical deficiencies and retrofitting strategies |
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Authors: | Claudio Modena Giovanni Tecchio Francesca da Porto Marco Donà Paolo Zampieri |
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Affiliation: | Department of Civil, Architecture and Environmental Engineering, University of Padova , Via Marzolo 9, 35131 Padova, Italy |
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Abstract: | In recent years, appraisal of the condition and rehabilitation of existing bridges has become an ongoing problem for bridge owners and administrators in all developed countries. Reliable methodologies are therefore needed in the assessment and retrofit design phases, to identify the vulnerability of each bridge class. The specific problems of common arch bridge types are discussed herein, for both reinforced concrete and masonry structures, proper interventions for their static and seismic retrofitting are illustrated and several examples of applications are provided. Retrofitting is usually coupled with functional refurbishment, according to a methodological approach that takes into account bridge characteristics, state of maintenance and functional requirements, and environmental aspects connected with repair and strengthening systems. |
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Keywords: | bridge maintenance arch bridges concrete bridges seismic design rehabilitation degradation |
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