000012887 001__ 12887
000012887 005__ 20160920162653.0
000012887 04107 $$aeng
000012887 046__ $$k2016-09-05
000012887 100__ $$aBusatta, F.
000012887 24500 $$aLessons learned from the dynamic assessment of railway bridges for heavy haul transport in South Africa

000012887 24630 $$n6.$$pInsights and Innovations in Structural Engineering, Mechanics and Computation
000012887 260__ $$bTaylor and Francis Group, London, UK
000012887 506__ $$arestricted
000012887 520__ $$2eng$$aSince the mid 1970s, heavy haul railway infrastructure has been a crucial asset for South Africa with iron ore and coal being the leading commodities exported worldwide. Over the past four decades, on the one hand, a continuous higher demand of railway capacity has resulted in a significant increase in traffic volume. Thus, the operating condition of railway bridges on existing heavy haul lines has changed dramatically. On the other hand, a progressive depletion of the coal deposits extracted since the 1970s has led to the discovery of new mines in North-Eastern South Africa that need to be linked to the existing heavy haul railway network. A possible cost-effective way to do that consists of upgrading existing general freight railway lines to heavy haul transport. However, existing bridges serving those lines need then to be investigated against the new expected railway loads. The paper shows and discusses, through two different case studies, how dynamic testing and modal analysis in operating conditions can be reliable and cost-effective tools to assess the dynamic behaviour of existing bridges within performance evaluation programs.

000012887 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012887 653__ $$a

000012887 7112_ $$aSixth International Conference on Structural Engineering, Mechanics and Computation$$cCape Town, South Africa$$d2016-09-05 / 2016-09-07$$gSEMC2016
000012887 720__ $$aBusatta, F.$$iMoyo, P.
000012887 8560_ $$ffischerc@itam.cas.cz
000012887 8564_ $$s2226416$$uhttps://invenio.itam.cas.cz/record/12887/files/335.pdf$$yOriginal version of the author's contribution as presented on CD, 335.pdf.
000012887 962__ $$r12552
000012887 980__ $$aPAPER