梁降伏形袖壁付きSRC造骨組の弾塑性性状と梁の最大せん断力

概要

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An experimental investigation and a limit analysis were conducted to study the seismic behavior of steel encased reinforced concrete frame with wing walls and the way to evaluate the maximum shear force of the wing wall-beam in the frame and the displacement at the time. Eight steel encased reinforced concrete column-beam-wall assemblage specimens and a reinforced concrete specimen, were constructed with a 1/3.5 dimensional scale factor. All specimens were tested under inelastic reversal loading. Tests show that the part of wing walls along the boundary with beam of SRC specimen was completely crushed without shear failure of the column and the beam, and after then the beams were collapsed as flexural failure with plastic hinge around the end of the beam, being different from those of RC specimen. The three main parameters were clarified up which would influence to the position of plastic hinge at the beam with wing walls. The maximum shear force and the displacement of beam at that time, calculated by the way proposed in this paper, agreed fairly good with the experimental results.
2004-02-28