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Judul Study on the cause of Kukar bridge collapse
Edisi
ISBN/ISSN
Pengarang Prof. Sohei Matsuno - Personal Name
Subyek/Subjek Bridge
Kukar
Content type Karya Ilmiah Dosen
Bahasa English
Penerbit Universitas IBA
Tahun Terbit 2012
Abstrak This is a sequel to the 1st paper of the same title. The writer has asked the client of the independent study team of four-university coalition to open its report for cross-checks. He opens this paper as a counterpart.
This paper elaborates the mechanism of hanger joints’ failure (a key issue of the Kukar Bridge collapse) with a joint restructured from applicable photos. The joints failed in two patterns, viz. fatigue due to alternating stress and break due to static stress. The former occurred at clamp-arm-connection shear bolts of joints installed in a middle third section of the main span. The latter happened at anchor parts of joints installed in outer third sections of the main span. The latter triggered the collapse. The collapse of Bridge’s side-span sections was the consequence of the main-span section’s collapse. This paper explains the sequence and mechanism of the Bridge collapse, and gives conclusions more concretely than the 1st paper. It shortens the explanations on lessons from the Kukar event and internet-origin data to avoid reiterations of 1st paper’s ones.
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