Mostra el registre d'ítem simple
WIM-based live-load model for advanced analysis of simply supported short- and medium-span highway bridges
dc.contributor.author | Anitori, Giorgio |
dc.contributor.author | Casas Rius, Joan Ramon |
dc.contributor.author | Ghosn, Michel |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental |
dc.date.accessioned | 2017-09-05T12:02:46Z |
dc.date.available | 2017-09-05T12:02:46Z |
dc.date.issued | 2017-10 |
dc.identifier.citation | Anitori, G.; Casas, J.; Ghosn, M. WIM-based live-load model for advanced analysis of simply supported short- and medium-span highway bridges. "Journal of bridge engineering", Octubre 2017, vol. 22, núm. 10, p. 4017062-1-4017062-11. |
dc.identifier.issn | 1084-0702 |
dc.identifier.uri | http://hdl.handle.net/2117/107402 |
dc.description.abstract | The accuracy of bridge system safety evaluations and reliability assessments obtained through refined structural analysis procedures depends on the proper modeling of traffic load effects. While the live-load models specified in AASHTO procedures were calibrated for use in combination with approximate analysis methods and load-distribution factors commonly used in the United States, these existing models may not produce accurate results when used in association with advanced finite-element analyses of bridge structures. This paper proposes a procedure for calibrating appropriate live-load models that can be used for advanced analyses of multigirder bridges. The calibration procedure is demonstrated using actual truck data collected at a representative set of weigh-in-motion (WIM) stations in New York State. Extreme value theory was used to project traffic-load effects to different service periods. The results are presented as live-load models developed for a 5-year typical rating interval and for a 75-year design life. The outcome of the calibration indicates that maximum traffic-load effects can be calculated using finite-element models with the help of a single truck for short to medium one-lane multigirder bridges and two side-by-side truck configurations for multilane bridges. The proposed analysis trucks have axle configurations of the standard AASHTO 3-S2 and Type 3 legal rating trucks with appropriate factors to amplify their nominal weights. The amplification factors reflected the presence of overweight trucks in the traffic stream and the probability of multiple presence. The proposed live-load models are readily implementable for deterministic refined analyses of highway bridges and for evaluating the reliability of bridges at ultimate limit states considering the system’s behavior. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Tipologies estructurals |
dc.subject.lcsh | Highway bridges |
dc.subject.other | Weigh-in-motion (WIM) |
dc.subject.other | Load modeling |
dc.subject.other | Live load |
dc.subject.other | Reliability calibration |
dc.subject.other | Loads for finite-element analysis (FEA) |
dc.subject.other | Multigirder bridges |
dc.subject.other | Refined analysis |
dc.title | WIM-based live-load model for advanced analysis of simply supported short- and medium-span highway bridges |
dc.type | Article |
dc.subject.lemac | Carreteres -- Ponts |
dc.contributor.group | Universitat Politècnica de Catalunya. EC - Enginyeria de la Construcció |
dc.identifier.doi | 10.1061/(ASCE)BE.1943-5592.0001081 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29BE.1943-5592.0001081 |
dc.rights.access | Open Access |
local.identifier.drac | 21476602 |
dc.description.version | Postprint (author's final draft) |
local.citation.author | Anitori, G.; Casas, J.; Ghosn, M. |
local.citation.publicationName | Journal of bridge engineering |
local.citation.volume | 22 |
local.citation.number | 10 |
local.citation.startingPage | 04017062-1 |
local.citation.endingPage | 04017062-11 |
Fitxers d'aquest items
Aquest ítem apareix a les col·leccions següents
-
Articles de revista [3.017]
-
Articles de revista [342]