HAZ TOUGHNESS FORMULATION BY STEEL CHEMICAL COMPOSITIONS FOR ELECTROSLAG WELDS OF BUILDING BOX COLUMNS

Akihiko KOJIMA; Yuzuru YOSHIDA; Yuji HASHIBA; Toyoaki SHIWAKU; Taichiro FUKUDA; Tetsuo SAKIYAMA; Tadao NAKAGOMI; Koji MORITA

doi:10.11273/jssc.17.68_69

Akihiko KOJIMA, Yuzuru YOSHIDA, Yuji HASHIBA, Toyoaki SHIWAKU, Taichiro FUKUDA, Tetsuo SAKIYAMA, Tadao NAKAGOMI, Koji MORITA

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Keywords: building box column, electroslag welds, HAZ toughness, steel chemical composition

JOURNAL FREE ACCESS

2010 Volume 17 Issue 68 Pages 68_69-68_83

DOI https://doi.org/10.11273/jssc.17.68_69

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Abstract

In order to estimate heat-affected zone (HAZ) toughness of electroslag welds of building box columns, formulas consisting of steel chemical compositions have been proposed. The connection between inner-diaphragm steel and skin-plate steel have been studied by electroslag welding tests and simulated HAZ tests. The Charpy absorbed energy (_vE₀: average value at 0 degree C) for the skin-plate HAZ, 1mm from the weld fusion line, can be simply estimated by the formulas using the chemical compositions (mass %) of the skin-plate steel.

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