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Testing a soil-steel bridge under static and dynamic loads
KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Byggvetenskap, Bro- och stålbyggnad.
KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Byggvetenskap, Bro- och stålbyggnad.ORCID-id: 0000-0002-5447-2068
2010 (engelsk)Inngår i: Proceedings of the Institution of Civil Engineers: Engineering Sustainability, ISSN 1478-4637, E-ISSN 1751-7664, Vol. 163, nr 1, s. 19-29Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The static and dynamic response of a long-span arch soil–steel composite railway bridge is studied. The bridge has a span of 11 m and a rise of 4·3 m. Two field tests were carried out before and after the first winter. Strains and displacements were measured during passages of a locomotive at different speeds. Vertical ballast accelerations and the effects of braking forces were also measured. The measurements indicated that the speed of the vehicle had a large influence on the displacements, thrusts and moments. The structure was found to be safe when measured values of moments and thrusts were compared with live load calculations according to design codes. It is concluded that the dynamic amplification factors calculated from the tests were larger than the theoretical values according to bridge design codes. However, there are indicators of post-winter effects in the form of reduced dynamic amplification factors.

sted, utgiver, år, opplag, sider
2010. Vol. 163, nr 1, s. 19-29
Emneord [en]
composite structures, field testing & monitoring, steel structures
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-78186DOI: 10.1680/bren.2010.163.1.019Scopus ID: 2-s2.0-77953007029OAI: oai:DiVA.org:kth-78186DiVA, id: diva2:492332
Merknad
QC 20120216Tilgjengelig fra: 2012-02-07 Laget: 2012-02-07 Sist oppdatert: 2017-12-08bibliografisk kontrollert

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