鉄筋コンクリート造有開口耐震壁の弾塑性性状に関する実験的研究(開口の形状がひび割れ性状,変形性状およびせん断耐力に及ぼす影響)

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he shear walls are commonly used in reinforced Concrete structures. As compared with rigid frames, the horizontal rigidity and ultimate shear strength of the shear walls are large For this reason, the shear walls in reinforced concrete structures are important structural elements for the horizontal shear force such as earthguake. In order to be effectively in use the shear walls for strong earthquakes, elasto-plastic behaviors of the shear walls under alternating horizontal loads have to be known Up to now, a large number of studies on reinforced concrete shear walls have been presented. In recent papers, the mechanical characteristics about the shear walls with openings are gradually becoming clearer Actually, the ultimate strength of the shear walls with openings are designed by multiplying reduction factor due to opening effect by that of the shear walls without opening in "Reinforced Concrte Standard" of "Architectural Institute of Japan" It is considered that the strength of the shear walls with opening varies by the position and scale of opening. Accordingly, the authors carried out the experiment to clear the effect on the crack patterns, deformation characteristics and ultimate shear strength of the shear walls with various kinds of openings. The specimens used in this experiment are one shear wall without opening, four shear walls with various kinds of openings and one open frame In this paper, the following items are compared and discussed. 1) Loading = displacement hysteresis 2) Crack patterns and crack propagation. 3) Mechanism of the failure 4) Normalized characteristic loop. 5) Equivalent viscous damping factor. 6) Absorbed energy 7) Deformation characteristics. 8) Rigidity decrease ratio after cracking. 9) Ultimate shear strength.
近畿大学の論文
1985-12-01

鉄筋コンクリート造有開口耐震壁の弾塑性性状に関する実験的研究(開口の形状がひび割れ性状,変形性状およびせん断耐力に及ぼす影響)

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