延性纤维增强混凝土剪力墙非线性分析及影响其性能参数研究  

NONLINEAR ANALYSIS AND STUDY ON EFFECT OF PERFORMANCE PARAMETERS FOR DUCTILE FIBER REINFORCED CONCRETE SHEAR WALLS

作　　者：寇佳亮[1] 梁兴文[1] 邓明科[1] 

机构地区：[1]西安建筑科技大学土木工程学院,西安710055

出　　处：《工程力学》2013年第4期219-227,共9页Engineering Mechanics

基　　金：国家自然科学基金项目(51078305;50908187;51278402);陕西省重点学科建设专项资金项目(E01001;E01003);陕西省自然科学青年基金项目(2009JQ7013);西安建筑科技大学基础研究基金项目(JC0902);西安理工大学博士启动基金项目(118-211206);长江学者和创新团队发展计划项目(PCSIRT)

摘　　要：以4个延性纤维增强混凝土(DFRC)剪力墙荷载作用下的抗震性能试验为基础,利用有限元软件ABAQUS、DFRC和高强混凝土均选用合适的拉、压损伤本构关系以及单元模型,建立了DFRC剪力墙非线性模型,模拟了加载全过程和受力性能,模拟曲线与试验恢复力曲线吻合较好。在此基础上,采用试验研究和非线性模拟相结合的方法,研究了影响DFRC剪力墙抗震性能的主要因素,包括DFRC区高度、DFRC强度、剪跨比和轴压比,并给出影响剪力墙性能参数的限值及其范围。Based on the seismic experiments of ductile fiber reinforced concrete（DFRC） shear walls under cyclic loading,the nonlinear analysis was performed to simulate the complete loading and mechanical behavior by using the finite element software ABAQUS.The nonlinear characteristic of ductile fiber reinforced concrete and high-strength concrete,including a set of element models and the damage constitutive relation of tensile and compress,was taken into account in the models.The reliability of the finite element model was verified by the comparison of analysis and experimental results.By combining the experimental research and the nonlinear simulation,in the consideration of the effect of height and strength of DFRC,the shear span ratio and axial compression ratio of design,the performance parameter of DFRC shear wall are investigated and discussed,and their ranges are suggested.

关 键 词：延性纤维增强混凝土剪力墙 非线性分析 性能参数 损伤本构关系 参数分析 

分 类 号：TU398.2[建筑科学—结构工程] TU311.4