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Response of Long-Span Box Type Soil-Steel Composite Structures during Ultimate Loading Tests
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Design and Bridges.
2009 (English)In: Journal of Bridge Engineering, ISSN 1084-0702, Vol. 14, no 6, 496-506 p.Article in journal (Refereed) Published
Abstract [en]

Soil-steel composite structures are getting more popular in recent years. With the introduction of more sophisticated structures such as box culverts with flexural stiffeners, the review of largely experience based design models became inevitable. The paper presents the ultimate loading part of full-scale testing conducted on corrugated steel box culverts. Structures with two different spans of 14 and 8 m and different crown stiffness were investigated using different cover depths. The tests indicate that the response of the structure to the depth of the cover is not linear. The structures become more vulnerable to applied loads as the soil cover decreases. The increase in the load-bearing capacity with increasing soil covers is linear, which agrees with the theoretical models. The crown stiffening, however, is more effective under shallow soil covers. The load resistance of the structures is doubled at the crown level with the crown stiffening. The Swedish design method overestimates live load moments but underestimates live load thrusts. An adjustment to the calculation of the thrusts is proposed. The Canadian design method estimates the moments relatively well but it does not cover larger spans than 8 m.

Place, publisher, year, edition, pages
2009. Vol. 14, no 6, 496-506 p.
Keyword [en]
Culverts, Buried structures, Field tests, Instrumentation, Composite structures, Structural response, Ultimate loads
National Category
Building Technologies
Identifiers
URN: urn:nbn:se:kth:diva-13736DOI: 10.1061/(ASCE)BE.1943-5592.0000031ISI: 000270914400009Scopus ID: 2-s2.0-70350051195OAI: oai:DiVA.org:kth-13736DiVA: diva2:326825
Note
QC 20100624Available from: 2010-06-24 Created: 2010-06-24 Last updated: 2010-06-24Bibliographically approved
In thesis
1. Static and dynamic behaviour of soil-steel composite bridges obtained by field testing
Open this publication in new window or tab >>Static and dynamic behaviour of soil-steel composite bridges obtained by field testing
2009 (English)Doctoral thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Stockholm: KTH, 2009. xviii, 55 p.
Series
Trita-BKN. Bulletin, ISSN 1103-4270 ; 98
Identifiers
urn:nbn:se:kth:diva-10530 (URN)
Public defence
2009-05-27, F3, Lindstedtsvägen 26, KTH, Stockholm, 10:00 (English)
Opponent
Supervisors
Note
QC 20100624Available from: 2009-05-25 Created: 2009-05-25 Last updated: 2010-07-19Bibliographically approved

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