【摘要】 研究采用matlab软件,计算出构件在轴压比n=N/fcA和受压与受拉纵筋面积比As’/As不同时几种弯矩与曲率,分析了T形截面短肢剪力墙曲率延性的影响,并绘制M-ψ曲线.结果表明,随轴压比n增大,延性降低;随纵筋面积比As’/As增大,延性提高,所以合理控制轴压比n,及适当提高受压与受拉纵筋面积比是改善其抗震性能的有效措施.更多还原

【Abstract】 Different ratio of axial compressive force n=N / fcA and the rebar ratio As′ / Asof short shear walls with Tshaped cross section are analyzed in the paper with the results of bending moment-curvatures calculated in Matlab software,and M-ψ curves is produced after that.The results indicate that with the increase of ratio of axial compressive force n =N / fc A,the ductility decreases.And with the increase of rebar ratio As′ / As,the ductility improved.Therefore,the effective measures to improve the seismic performance of the shear walls could be a reasonable control of axial compression ratio n=N / fcA,and the decreasing of As or increasing of As′ / As.更多还原