COI code: RCEAUD03_269
Paper Language: English
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Authors Retrofitting of BridgesMehrdad Ataeenejad - Expert civil engineering and bridge building
Ali Amani - Expert civil engineering and bridge building
Abstract:The extensive damage to bridges world over in earthquakes has generated considerable interest amongst the engineers and researchers on the seismic design of new bridges and retrofitting of existing ones. Prior to the development of modern codes, the bridges were designed for nominal seismic forces without provisions of ductility. Seismic codes began to incorporate ductility provisions only in 1970. Thus the bridges designed earlier may be deficient to withstand effect of future earthquakes. These structures may require seismic evaluation and retrofitting. The protection of bridges from damage in earthquakes has direct relevance in prevention of aggravation of disaster, as disruption of transportation routes hampers relief and rescue operations immediately following the earthquake. Several retrofitting techniques have been developed for bridges in recent years. Many of the existing bridges can be retrofitted by these techniques. Some seismic countries have undertaken the programmes of seismic assessment and retrofitting of bridges on a bigger scale. Such actions are proving to be effective as evidenced by performance of retrofitted bridges in recent earthquakes. There is need in India to investigate the likely behavior of existing bridge stock in future earthquakes and initiate seismic retrofitting. This paper highlights the important issues: structural deficiencies; retrofit philosophy, retrofit techniques, recent developments and effectiveness of retrofit techniques
COI code: RCEAUD03_269
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Ataeenejad, Mehrdad & Ali Amani, 2016, Retrofitting of Bridges, 3rd International Conference on Advances in Civil Engineering Architecture urban management, تهران, موسسه آموزش عالي نيكان, https://www.civilica.com/Paper-RCEAUD03-RCEAUD03_269.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Ataeenejad, Mehrdad & Ali Amani, 2016)
Second and more: (Ataeenejad & Amani, 2016)
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