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系统地研究了配筋混凝土砌块砌体剪力墙的截面延性系数分析、截面屈服弯矩和极限弯矩计算、截面屈服曲率估算以及截面弯矩-曲率关系曲线建立的数值分析法,讨论了剪力墙轴压比、翼缘宽度、材料强度、配筋率和配箍特征值等因素对剪力墙截面延性的影响,提出了截面屈服曲率的估算公式。最后结合配筋砌块砌体剪力墙低周反复荷载试验,验证了配筋混凝土砌块砌体剪力墙截面延性数值分析法的可靠性。
This paper systematically studied the analysis of section ductility coefficient of reinforced concrete block masonry shear wall, the calculation of section yield bending moment and ultimate bending moment, the estimation of section yield curvature and the establishment of moment-curvature curve of section, The axial compression ratio of shear wall, the width of flange, the strength of material, the ratio of reinforcement, the characteristic value of hoop and other factors on the ductility of shear wall section are proposed. Finally, in combination with the low-cycle repeated loading tests of reinforced masonry shear walls, the reliability of the numerical analysis method for the ductility of reinforced concrete block masonry shear walls is verified.