Project :
Client :
Project Value :
Project Overview :
John Holland Rail (JHR) appointed JJR to carry out a Level 3 Inspection and Load Rating of Tottenham Overbridge (OBW32597A), in accordance with AS 5100 Australian Bridge Design Code and applicable JHR CRN standards, including:
- Civil Technical Maintenance Plan;
- Over bridges;
- Civil Service Schedule;
- Structures Examination; and
- Bridges – Load Rating.
Tottenham Overbridge is a three-span steel girder bridge, built in the 1910s with a timber deck, which was replaced with a reinforced concrete deck, and steel trestles with concrete footings and abutments.
JJR Involvement :
JJR carried out stationary and moving load tests of the bridge with temporarily fitted displacement and strain gauges. Output from the gauges was analysed using a combination of known, inferred, and assumed parameters with computer/mathematical models of the bridge. The load testing results and structural engineering assessments were delivered in a report to JHR.
