偏心軸圧縮荷重を受ける有孔正方形鋼管の局部座屈強度に関する実験的基礎研究 : 第1報,上下端の偏心距離が等しい場合

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This paper is concerned with a compression experiment in the case of equal eccentric at upper and lower ends of carbon steel square pipes, each with a circular hole in a short column range, supported by a spherical seat. An empirical formula for calculating eccentric compressive buckling stress σ_<che> of the carbon steel square pipes with a circular hole is presented as follows ; σ_<che>/σ_<cr>=(K_0/K)/{1+2(e/c)} where K and K_0 = coefficients of axial compressive buckling stress on carbon steel square pipes without and with a cicular hole, e = eccentricity, c = distance between walls. Consideration has been given to the diagram which is the combinatison of the analysis based on the energy method with the experimental results. The measurement results show that this diagram represents good design data and is in good agreement with the results obtained experimentally for a short column range.
一般社団法人日本機械学会の論文
1993-04-25