Kazerne Viaduct Collapse

by Konstant E. Bruinette, (A.M.ASCE), Part.; Bruinette, Kruger, Stoffberg and Hugo Consulting Engrs., Johannesburg, South Africa,
Alan J. Ockleston, Prof. of Struct. Engrg.; Univ. of Witwatersrand, Johannesburg, South Africa,
Pieter C. Pretorius, (A.M.ASCE), Part.; Bruinette, Kruger, Stoffberg and Hugo Consulting Engrs., Johannesburg, South Africa,


Serial Information: Journal of the Structural Division, 1974, Vol. 100, Issue 2, Pg. 335-350


Document Type: Journal Paper

Abstract: An investigation into the failure of an off-ramp structure is described. A straight post-tensioned portal frame with drop-in spans failed during an intermediate stage of construction due to a torsional load applied at one end by a curved drop-in span. The mode of failure, as well as the analytical approach that explained the failure, is described. The analyses consisted of solving three models through the center, centroid, and column line of the main girder. The results indicated that failure was due to the low torsional stiffness and strength of the open-box girder section.

Subject Headings: Failure analysis | Structural failures | Torsion | Girders | Tension | Frames | Construction management

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