Structural overview of behaviour of Riverside Expressway

During the asphalt resurfacing of the thirty-three year old Riverside Expressway, it was found that the curved concrete box ramps had undergone torsional distortion to the extent that an inside support bearing on the curved Ann Street ramp had lifted clear of its support. After design checks, extensive computer modelling, surveying and instrumentation of the Ann Street ramp, it was concluded that parasitic loss effects together with differential temperature were the cause of the rotation of the curved ramp. The ramp was found to be performing in a predictable fashion and is considered to be in a safe condition. Further analysis is required to determine what further corrective action is required. (a) For the covering entry of this conference, please see ITRD abstract no. E218160.


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  • Accession Number: 01143959
  • Record Type: Publication
  • Source Agency: TRL
  • Files: ITRD, ATRI
  • Created Date: Nov 16 2009 12:16PM