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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 performance tests of four ductile fiber reinforced concrete (DFRC) shear walls, the finite element software ABAQUS, DFRC and high strength concrete are selected appropriate structural constitutive relations and elemental models of tension and compression damage to establish a DFRC shear wall nonlinear model to simulate the whole process of loading and mechanical properties, the simulation curve and the test of the resilience curve is in good agreement. Based on this, the main factors influencing the seismic performance of the shear wall of DFRC are studied, including the height of DFRC, strength of DFRC, shear-span ratio and axial compression ratio by means of a combination of experimental research and nonlinear simulation. Shear wall performance parameters of the limits and scope.