Remaining Life Assessment of Millswood Goodwood Road Railway Bridge

10/09/18

Remaining Life Assessment of Millswood Goodwood Road Railway BridgeBureau Veritas was requested by the Department of Planning, Transport and Infrastructure SA to assist in the assessment of remaining life of the Millswood, Goodwood Road Railway Bridge. The original structure of the bridge was built in 1911 and modified (strengthened) in 1926. It is a riveted girder type bridge, consisting of North Outer, Central Main and South Outer primary girders. These girders are composite I-beam structures where the cross girders are hot rolled I-beams. 

The main purpose of the assessment was to determine the bridge service life, which is limited by a fatigue strength of its most laden joint. Generally, cracks in girders originate from rivet holes which is explained by the fact that the rivet hole acts as a stress raiser.

Fatigue endurance is one of the major factors influencing the service life for steel bridges. The technique of riveting bridges is obsolete and not practised for infrastructure today. Due to this, there is limited information available concerning riveted girders ability to withstand fatigue. Therefore, the adopted approach for the assessment of the bridge service life consisted of the following considerations:

  • Measurement of stresses in the bridge structure at several locations by utilising strain gauges
  • The data was continuously collected for a period of 4 weeks
  • Processing and analysis of the strain and stress experimental data obtained from the test.
  • Building a full 3D model of the bridge for conducting an analytical stress analysis of the bridge structure (Finite Element Analysis – FEA). A strain and stress experimental data obtained during the test has been used for calibration of the analytical model.
  • Estimation of the bridge steel mechanical properties
  • Determining and locating the areas of elevated stresses in the bridge structure by using different methods. Making rivet holes in old bridge structures were by drilling, punching, sub-drilling and reaming as well as punching and reaming. The surface condition of rivet holes is believed to be a factor influencing the fatigue life of riveted structures. Therefore, a detailed stress and fatigue analysis was performed for one of the most laden riveted joint. The fatigue analysis has been conducted based on AS 5100.

From a combination of innovative methods and expert engineers, the assessment of the bridge service life was done effectively.

Contact us today to find out how our top to bottom engineering services can help with your infrastructure needs so you move forward with confidence.

Written by:

Ian Coker
Market Leader
Engineering | Inspection | Material Science | NDT
Tel: 0405 775 677

Contact us

Bureau Veritas

+61 (0)405 775 677

Send an e-mail
Share on :
  • Algeria
  • Angola
  • Argentina
  • Armenia
  • Australia
  • Austria
  • Azerbaijan
  • Bahamas
  • Bahrain
  • Bangladesh
  • Barbados
  • Belarus
  • Belgium
  • Benin
  • Bermuda
  • Bolivia
  • Bosnia and Herzegovina
  • Botswana
  • Brazil
  • Brunei
  • Bulgaria
  • Burkina-Faso
  • Burundi
  • Cambodia
  • Cameroon
  • Canada
  • Cape Verde Islands
  • Central African Republic
  • Chad
  • Chile
  • China (Peoples' Republic of)
  • Colombia
  • Congo
  • Congo (Democratic Republic of the)
  • Costa Rica
  • Cote d'Ivoire
  • Croatia
  • Cuba
  • Curacao
  • Czech Republic
  • Denmark
  • Djibouti
  • Dominican Republic
  • Ecuador
  • Egypt
  • El Salvador
  • Equatorial Guinea
  • Eritrea
  • Estonia
  • Ethiopia
  • Fidji
  • Finland
  • France
  • French West Indies
  • Gabon
  • Georgia
  • Germany
  • Ghana
  • Gibraltar
  • Greece
  • Greenland
  • Guatemala
  • Guinea
  • Guinea Bissau
  • Honduras
  • Hungary
  • Iceland
  • India
  • Indonesia
  • Iraq
  • Israel
  • Italy
  • Japan
  • Jordan
  • Kazakhstan
  • Kenya
  • Korea (South)
  • Kuwait
  • Latvia
  • Lebanon
  • Liberia
  • Libya
  • Lithuania
  • Luxembourg
  • Madagascar
  • Malawi
  • Malaysia
  • Mali
  • Malta
  • Mauritania
  • Mexico
  • Montenegro
  • Morocco
  • Mozambique
  • Myanmar
  • Namibia
  • Netherlands
  • Netherlands Antilles
  • New Zealand
  • Nicaragua
  • Niger
  • Nigeria
  • Norway
  • Oman
  • Pakistan
  • Panama
  • Paraguay
  • Peru
  • Philippines
  • Poland
  • Portugal
  • Puerto Rico
  • Qatar
  • Romania
  • Russia
  • Rwanda
  • Saint- Pierre & Miquelon
  • Saudi Arabia
  • Senegal
  • Serbia
  • Seychelles
  • Sierra Leone
  • Singapore
  • Slovakia
  • Slovenia
  • Somalia
  • South Africa (Rep.)
  • Spain
  • Sri Lanka
  • Suriname
  • Sweden
  • Switzerland
  • Syria
  • Taiwan
  • Tanzania (United Republic of)
  • Thailand
  • Togo
  • Trinidad & Tobago
  • Tunisia
  • Turkey
  • Turkmenistan
  • Uganda
  • Ukraine
  • United Arab Emirates
  • United Kingdom
  • United States of America
  • Uruguay
  • Uzbekistan
  • Venezuela
  • Vietnam
  • Yemen
  • Zambia
  • Zimbabwe
  • Other Websites
  • Africa
  • GLOBAL WEBSITE
  • Middle East
  • South East Asia
Choose your industry, asset and / or service need
Your Industry

Your Asset

Our Services