EXPERIMENTAL STUDY ON ELASTIC-PLASTIC STABILITY OF SLENDER REINFORCED CONCRETE COLUMNS SUBJECTED TO BIAXIAL BENDING (PART III)

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  • 2軸曲げを受ける鉄筋コンクリート長柱の弾塑性安定に関する実験的研究 (その3)
  • 2軸曲げを受ける鉄筋コンクリート長柱の弾塑性安定に関する実験的研究-3-
  • 2ジク マゲ オ ウケル テッキン コンクリート チョウチュウ ノ ダンソセイ

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Abstract

The elastic-plastic behavior of slender reinforced concrete columns subjected to biaxiallyeccentric loads was studied experimentally and analytically. Eight pin-ended column specimens, whose length to section depth ratio were approximately 25, with square cross section were loadedmonotonically at various magnitudes and angles of end eccentricities. The ultimate loads, longi-tudinal and transverse deformations and the behavior up to failure were examined in detail. Thetest results were compared with the numerical solution of the analytical model which consideredthe nonlinearities of the material properties and the changes in moments due to deflections andvariations in stiffness. The columns with small end eccentricities approached an unstable con-dition at failure. The only one column with large eccentricity was stable and the material failureoccurred. Comparisons of analytical ultimate load and deflection with test results show a goodcorrelation.

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