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ACSA: No risk of structural collapse at OR Tambo


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Management of OR Tambo International Airport has confirmed that a certified structural engineer has examined cracks on a support pillar of the elevated departures roadway at the airport and has determined that there is no risk of a structural collapse.

The inspection of support pillar number 23 was carried out on 29 January 2019 by the structural engineer and the airport’s maintenance engineering team.

This pillar is located by the domestic terminal entrance/exit on the lower road ring and provides support to the upper road ring of the airport.

The defects were classified by the structural engineer as cracking of the mortar inside the bridge expansion gap.

Structural damage

The structural engineer determined that the cracks were caused by the expansion and contraction movement of the bridge deck on the pillar head.

Under normal circumstances, the expansion joint gap is free of plaster. However, during construction, this pillar expansion joint was plastered to neaten the appearance work area.

Adjacent pillars with open expansion gaps can be seen in the image below.

ACSA damage

The recommendations of the structural engineer were to:

• Remove all the loose concrete and mortar from the bridge deck pillar head;
• Finish the bridge ends with mortar; and
• Apply wet to dry epoxy to the exposed surface of the pillar head, then shutter the pier and pour
in flowable concrete.

The remedial work commenced as per the engineer’s recommendations. The current status of the remedial work can be seen in the image below. The maintenance team is awaiting setting of the mortar before painting

ACSA damage 2

Jeanette Briedenhann
Jeanette Briedenhann
Jeanette Phillips joined the team in 2016. She developed a passion and love for all things-travel related in her role as travel journalist, a position she held for over seven years. A brief exodus into the corporate marketing sphere proved that there is no better industry than the travel industry. Research and writing are two of Jeanette’s greatest passions, but she is always open to new challenges and different ways of doing things.

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