摘要:文章基于对钢筋混凝土框架中柱内节点的受力分析、三个钢筋混凝土框架空间节点低周反复荷载作用下的试验研究以及OpenSEES程序的有限元数值模拟,研究了在斜向方向地震作用下框架结构柱因其斜向承载力不足而发生“强梁弱柱”的破坏机制及其抗震性能.结果表明:45°方向地震作用下柱梁强度比小于1.0且随轴压比的增大该系数减小;对比有限元分析与试验结果,两者吻合较好;此外,应加强在斜向地震作用下结构抗震设计方法的研究.
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