文档介绍：型钢高性能混凝土剪力墙非线性有限元分析
型钢高性能混凝土剪力墙非线性有限元分析
摘要本文选用ANSYS有限元分析软件对一系列型钢高性能混凝土剪力墙模型进行非线性有限元模拟分析,研究其在不同的轴压比、剪跨比、型钢截面形式下的抗震性能。得出主要结论:在相同条件下,随着轴压比的不断加大或剪跨比的不断减小,型钢高性能混凝土的承载能力虽有所提高,但其延性性能、耗能能力等抗震性能越差;,其位移延性系数小于2;,其位移延性系数小于2。改变型钢高性能混凝土剪力墙边缘构件中型钢的截面形式可以改变构件的抗震性能。
关键词型钢高性能混凝土剪力墙;有限元;轴压比;剪跨比;
中图分号:文献标志码: 文章编号:
Nonlinear finite element analysis of steel high performance concrete walls
XU Yi’an
(School of Architecture and Civil Engineering, Xi’an University of Science and Technology, Xi’an, Shanxi 710054, China)
AbstractBased on the experiment of steel high performance concrete (SHPC) walls, nonlinear finite element analysis was performed to simulate plete process of the loading and concrete crack of SHPC walls by ANSYS. The nonlinear archaracteristic of material was taken into account in the models. The reliability of the finite element model was verified through parison of analysis results and experimental results. Based on the proposed model, parametric analysis was carried out to study the effect of axial load ratio, height-width ratio, stirrup characteristic value, and steel ratio on the seismic behavior of SHPC walls.
Keywordssteel high performance reinforced concrete walls; nonlinear finite element analysis; deformation capacity; axial loadratio;shear-span ratio
0 引言
高性能混凝土具有高强度、高耐久性、高流动性及高抗渗透性等优点[1―2],型钢混凝土(SRC)具有承载力高、变形能力好等特点,在高性能混