【摘要】 采用ANSYS对单柱式矩形截面桥墩的受力性能进行有限元数值分析,对型钢混凝土结构数值模拟中材料本构的定义、有限元建模和边界条件设置等关键技术进行研究,计算构件延性系数并分析位移延性系数的影响因素。结果表明:在其它条件不变的情况下,位移延性系数随含钢率、体积配箍率和剪跨比的增加而增大,随轴压比的增加而减小。更多还原

【Abstract】 Finite element numerical analysis of single column and rectangular section pier using ANSYS computer program were conducted and the mechanical behaviors of these piers were analysed.A series of pivotal numerical simulation technologies about steel reinforced concrete structure such as defining material model,establishing finite element model and setting up boundary conditions were studied.The displacement ductility factor had been calculated,which influencing factors had been analysed.It turned out that at the other conditions remain unchanged,displacement ductility factor increase with the increase of shaped steel ratio、volumetric percentage of stirrups and shear span ratio.But with the increasing of axial compression ratio,displacement ductility factor become smaller.更多还原