Soil-Steel Interaction of Long-Span Box Culverts-Performance during Backfilling
2010 (English)In: Journal of Geotechnical and Geoenvironmental Engineering, ISSN 1090-0241, Vol. 136, no 6, 823-832 p.Article in journal (Refereed) Published
The paper presents the performance of four long-span deep-corrugated steel box culverts with spans of 8- and 14-m during backfilling, as well as comparisons with finite-element modeling and design codes. Two of the culverts were stiffened at the crown arch. The test results show that the stiffening applied on the culverts is quite effective. The crown rises of the respective stiffened culverts were found to be half those of the not-stiffened culverts. The influence of the structure geometry on the soil-passive earth pressure was confirmed, as well as the sensitivity of box culverts to soil loads with increasing spans. The results showed that the influence of the size and shape of the box culverts on the amount of thrusts must be better implemented in the design method. The finite-element analysis results were conservative when live loading was concerned but the crown displacements and thrust during backfilling were underestimated.
Place, publisher, year, edition, pages
2010. Vol. 136, no 6, 823-832 p.
Box culverts, Buried structures, Field tests, Instrumentation, Soil-steel structures, Structural response, Design methods, Soil-structure interaction, Finite-element modeling
IdentifiersURN: urn:nbn:se:kth:diva-13734DOI: 10.1061/(ASCE)GT.1943-5606.0000287ISI: 000277742100005ScopusID: 2-s2.0-77953338338OAI: oai:DiVA.org:kth-13734DiVA: diva2:326813
QC 201006242010-06-242010-06-242010-06-24Bibliographically approved