钢骨外框密肋复合墙体延性的非线性数值分析
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摘要
为了提高普通密肋复合墙体的水平承载力和改善其抗震性能,在隐形框架里配置型钢形成钢骨外框密肋复合墙体。本文应用ANSYS有限元软件对钢骨外框密肋复合墙体进行非线性数值分析,根据不同的高宽比、轴压比和配钢率的计算结果,对该结构体系的延性及其破坏形态进行综合分析。分析结果表明,高宽比主要控制钢骨密肋复合墙体的破坏形态,轴压比对其结构的延性的影响最为显著。
In order to improve horizontal load-bearing property and seismic behavior of common multi-ribbed slab wall,steel-reinforced multi-ribbed slab wall is constructed when steel is coasted in concealed frame.The nonlinear finite element analysis of steel-reinforced multi-ribbed slab wall is performed using ANSYS10.0.Based on the calculation results of models with variable height-width ratio,axial compression ratio and steel percentage,ductility and destruction forms are comprehensively analyzed.The results indicate that the height-width ratio controls the destroying form of the wall,the axial compression ratio affects its ductility obviously.
In order to improve horizontal load-bearing property and seismic behavior of common multi-ribbed slab wall,steel-reinforced multi-ribbed slab wall is constructed when steel is coasted in concealed frame.The nonlinear finite element analysis of steel-reinforced multi-ribbed slab wall is performed using ANSYS10.0.Based on the calculation results of models with variable height-width ratio,axial compression ratio and steel percentage,ductility and destruction forms are comprehensively analyzed.The results indicate that the height-width ratio controls the destroying form of the wall,the axial compression ratio affects its ductility obviously.
引文
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[2]朱伯芳.有限元单元法原理与应用[M].北京:中国水利水电出版社,1998.
[3]黄炜.密肋复合墙体抗震性能及设计理论研究[D].西安:西安建筑科技大学,2004.
[4]尚晓江,邱峰,等.ANSYS结构有限元高级分析方法与范例运用[M].北京:中国水利水电出版社,2005.
[5]DBJ/T 61-43-2006.密肋壁板结构技术规程[S].
[6]过镇海,时旭东.钢筋混凝土原理与分析[M].北京:清华大学出版社,2003.
[7]卞延彬,苏幼坡,李淑春.轻钢骨混凝土剪力墙延性的非线性有限元分析[J].地震工程与工程振动.2005(6):55-59.
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