Modeling spatially unrestricted pedestrian traffic on footbridges / Stana Zivanovic in Journal of structural engineering, Vol. 136 N° 10 (Octobre 2010)  

Public ISBD [article]  inJournal of structural engineering > Vol. 136 N° 10 (Octobre 2010) . - pp. 1296-1308 Titre : Modeling spatially unrestricted pedestrian traffic on footbridges Type de document : texte imprimé Auteurs : Stana Zivanovic, Auteur ; Aleksandar Pavic, Auteur ; Einar Thor Ingolfsson, Auteur Année de publication : 2011 Article en page(s) : pp. 1296-1308 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Footbridge Vibration serviceability Spatially unrestricted pedestrian traffic Monte Carlo simulations Human-structure interaction Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : The research into modeling walking-induced dynamic loading and its effects on footbridge structures and people using them has been intensified in the past decade after some high profile vibration serviceability failures. In particular, the crowd induced loading, characterized by spatially restricted movement of pedestrians, has kept attracting attention of researchers. However, it is the normal spatially unrestricted pedestrian traffic, and its vertical dynamic loading component, that is the most relevant for vibration serviceability checks for most footbridges. Despite the existence of numerous design procedures concerned with this loading, the current confidence in its modeling is low due to lack of verification of the models on as-built structures. This is the motivation behind reviewing the existing design procedures for modeling normal pedestrian traffic in this paper and evaluating their performance against the experimental data acquired on two as-built footbridges. Additionally, the use of Monte Carlo simulations is also investigated. Possible factors that cause discrepancies between measured and calculated vibration responses, including possibility of existence of pedestrian-structure dynamic interaction, are discussed. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i10/p1296_s1?isAuthorized=no [article] Modeling spatially unrestricted pedestrian traffic on footbridges [texte imprimé] / Stana Zivanovic, Auteur ; Aleksandar Pavic, Auteur ; Einar Thor Ingolfsson, Auteur . - 2011 . - pp. 1296-1308. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 136 N° 10 (Octobre 2010) . - pp. 1296-1308 Mots-clés : Footbridge Vibration serviceability Spatially unrestricted pedestrian traffic Monte Carlo simulations Human-structure interaction Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : The research into modeling walking-induced dynamic loading and its effects on footbridge structures and people using them has been intensified in the past decade after some high profile vibration serviceability failures. In particular, the crowd induced loading, characterized by spatially restricted movement of pedestrians, has kept attracting attention of researchers. However, it is the normal spatially unrestricted pedestrian traffic, and its vertical dynamic loading component, that is the most relevant for vibration serviceability checks for most footbridges. Despite the existence of numerous design procedures concerned with this loading, the current confidence in its modeling is low due to lack of verification of the models on as-built structures. This is the motivation behind reviewing the existing design procedures for modeling normal pedestrian traffic in this paper and evaluating their performance against the experimental data acquired on two as-built footbridges. Additionally, the use of Monte Carlo simulations is also investigated. Possible factors that cause discrepancies between measured and calculated vibration responses, including possibility of existence of pedestrian-structure dynamic interaction, are discussed. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i10/p1296_s1?isAuthorized=no

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