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FEM based research on the dynamic response of a concrete railway arch bridge
Southeast University, Nanjing.
Southeast University, Nanjing.
Southeast University, Nanjing.
Southeast University, Nanjing.
Vise andre og tillknytning
Rekke forfattare: 72016 (engelsk)Inngår i: IABSE CONGRESS, STOCKHOLM, 2016: Challenges in Design and Construction of an Innovative and Sustainable Built Environment / [ed] Elfgren, Lennart; Jonsson, Johan; Karlsson, Mats; Rydberg-Forssbeck, Lahja; Sigfid, Britt2016, CH - 8093 Zürich, Switzerland, 2016, s. 2472-2479Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

The dynamic response of a concrete railway arch bridge is studied through a case study of the bridge over Kalix River, situated at Långforsen on the railway line between Kalix and Morjärv in northern Sweden. A simplified beam-element model, a spatial grillage-beam model and a refined shell-element model were built to analyze the bridge structure. A methodology was applied where measured static and dynamic responses were used to update finite element models of Långforsen Bridge. A multi-response objective function was presented, and the finite element method was proved feasible by comparison of predicted and measured response. In the paper comparative analyses were made of the time history displacement of three finite element models under three measured load cases. A standard train model from EUROCODE, HSLM-A 1, was applied and the dynamic responses under different speeds were studied. The results showed that a refined shell element model could accurately analyze dynamic responses of the concrete railway arch bridge in a better way than beam element and spatial grillage models. The dynamic analysis based on this type of shell model can give an optimized suggestion for the railway operation as well as for the design of high-speed railway bridges.

sted, utgiver, år, opplag, sider
CH - 8093 Zürich, Switzerland, 2016. s. 2472-2479
Serie
IABSE Congress Reports
Emneord [en]
Refined shell element model, Dynamic response, Moving load, Concrete railway arch bridge
HSV kategori
Forskningsprogram
Konstruktionsteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-62172Scopus ID: 2-s2.0-85018948830ISBN: 978-3-85748-144-4 (digital)OAI: oai:DiVA.org:ltu-62172DiVA, id: diva2:1077127
Konferanse
19th IABSE Congress Stockholm, 21-23 September 2016
Forskningsfinansiär
Swedish Transport Administration
Merknad

Financial support from the National Natural Science Foundation of China (Project No 51378104) and

"A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions, PAPD”, Southeast University (SEU).

Tilgjengelig fra: 2017-02-25 Laget: 2017-02-25 Sist oppdatert: 2019-09-11bibliografisk kontrollert

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Wang, ChaoTu, Yong-MingGrip, NiklasOhlsson, UlfElfgren, Lennart

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