基于MARC的一字形短肢剪力墙结构抗震性能有限元分析

采用有限元软件MSC.MARC,对一字形短肢剪力墙结构进行了低周往复水平荷载下的数值模拟试验.主要通过一字形短肢剪力墙的应变云图、滞回曲线和骨架曲线等分析,研究了不同轴压比对一字短肢剪力墙结构抗震性能的影响.对本研究的一字形短肢剪力墙结构不同轴压比下抗震能力的结果进行比较可知,虽然轴压比越小,延性越好,抗震能力越强,但从综合因素来看,设计轴压比为0.15的短肢剪力墙的抗震效果明显.分析结果可为一字形短肢剪力墙基于性能的抗震设计时提供参考,推动一字形短肢剪力墙在实际工程中的运用.

The finite element analysis on seismic performance of a glyph short limb shear wall structure based on the MARC

The finite element software MSC. MARC is used for a glyph short limb shear wall structure under low cycle reciprocating horizontal load of the numerical simulation ex- periment. The seismic performance of different axial compression ratio on a glyph short limb shear wall is researched, mainly through analysis of a glyph short limb shear wall strain cloud, structure hysteresis curvets and skeleton curves, etc. After seismic perform- ance result comparison of different axial compression ratio about a glyph short limb shear wall structure of this paper, it is shown that Axial compression ratio is smaller, the better the ductility and aseismic ability,but from the comprehensive factors comparison, design of axial compression ratio of 0.15 short limb shear wall seismic effect is obvious. The results of the analysis provide reference data about a glyph short limb shear wall in the performance of seismic design,and promote a glyph short limb shear wall in the practical engineering appli- cation.