Destructive load testing of bridge no. 1049: analyses, predictions and testing

Bridge No 1049 over Baandee Lakes on Great Eastern Highway typical of a number of similar structures in Western Australia, many of which, when analysed by conventional methods, appear to be under strength for current vehicle loads. This paper provides details of two destructive bending, and two destructive punching shear tests carried out on Bridge No 1049. It describes the analyses performed prior to testing, aimed at predicting the response of the structure at both serviceability and ultimate states, and discusses the results obtained. The results showed that in the bending tests, the load-displacement response of the structure was accurately predicted by LUSAS FE analyses, but a general shear failure mode that accompanied the ultimate bending failure was not predicted. COBRAS yield line analyses gave accurate predictions of ultimate bending capacity. The results from the punching shear tests indicated that load distribution and pile-soil interaction greatly affect pile-head load at failure and this must be modelled accurately if analysis is to provide a correct assessment of punching shear force. (a) For the covering entry of this conference, please see ITRD abstract no. E211602.

Language

  • English

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Filing Info

  • Accession Number: 01011314
  • Record Type: Publication
  • Source Agency: ARRB
  • ISBN: 0855886986
  • Files: ITRD, ATRI
  • Created Date: Dec 19 2005 3:01PM