000010494 001__ 10494
000010494 005__ 20141205155733.0
000010494 04107 $$aeng
000010494 046__ $$k2008-10-12
000010494 100__ $$aKerciku, A. A.
000010494 24500 $$aFailure of Show a Bridge During the 1964 Niigata Earthquake: Lateral Spreading or Buckling Instability?

000010494 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010494 260__ $$b
000010494 506__ $$arestricted
000010494 520__ $$2eng$$aFollowing the 1964 Niigata earthquake many bridges, including the Showa Bridge, over the Shinano river collapsed. The newly-constructed Showa Bridge demonstrated one of the worst instances of damage, and there are still uncertainties and controversies regarding the causes of collapse. The collapse of the Showa Bridge has been, throughout the years, an iconic case study for demonstrating the devastating effects of the lateral spreading of liquefied soil. In this paper, this widely accepted collapse hypothesis has been challenged. The documented eyewitnesses’ observations and post-collapse damage reports have been reanalysed, and the all the major studies on the collapse of the bridge compared and contrasted. It has been shown that the current, widely accepted, failure mechanism based on bending due to lateral spreading, cannot explain the failure. This paper presents a new hypothesis based on buckling failure due to axial loads in conjunction with residual, earthquake-induced, lateral displacements. This alternative explanation has been evaluated quantitatively using the method suggested by Kerciku et al. (2008) for estimating the buckling capacity of piles in liquefied soil, and Eurocode 3 (1993) recommendations for steel members subjected to bending and axial compression.

000010494 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010494 653__ $$aPile Foundation, Liquefaction, Buckling, Showa bridge, Depth of fixity, Lateral Spreading

000010494 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010494 720__ $$aKerciku, A. A.$$iBhattacharya, S.$$iLubkowski, Z. A.$$iBurd, H.J.
000010494 8560_ $$ffischerc@itam.cas.cz
000010494 8564_ $$s1361198$$uhttps://invenio.itam.cas.cz/record/10494/files/06-0165.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 06-0165.
000010494 962__ $$r9324
000010494 980__ $$aPAPER