面内圧縮荷重を受ける単一鋼平板の熱弾塑性クリープ座屈挙動解析

概要

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An analytical method for thermal elasto-plastic-creep buckling behavior of single steel plates loaded in edge compression at elevated temperature is presented. This method is a combined-nonlinear finite element procedure based on the finite displacement theory of thin flat plates, and adopts the mechanical model of structural steel at high temperature, which was proposed by authors in the past. The calculation of load-deformation relationships of single steel plates at constant temperatures are performed in order to get the information for the maximum strength of steel plates at high temperature. Also, the calculation of deformation behavior of steel plates at increasing temperature under constant external edge loads are performed in order to investigate the effect of creep strain on the deformation and the collapse temperature of steel plates at elevated temperature. As a result of investigating examples, the effect of temperature and creep strain on the reduction of maximum strength of steel plates is shown.
社団法人日本建築学会の論文
1988-12-30