摘要
用有限元法对单调横向荷载作用下的钢筋混凝土矩形板作了非线性分析.建立了考虑板中弯曲-拉(压)耦合效应的4节点20自由度分层矩形单元模式.采用了等效单轴应力应变混凝土本构模式.编制了计算程序,并对两块钢筋混凝土板作了计算.计算结果与相应的试验结果符合较好.还讨论了开裂混凝土拉伸劲化效应对计算结果的影响.
The nonlinear analysis of reinforced concrete rectangular slabs under monotonic transverse loads is performed by finite element method,The layered rectangular element with 4 nodes and 20 degrees of freedom is deve- loped,in which bending/stretching coupling effect is taken into account.An orthotropic equivalent uniaxial stress-strain constitutive model of concrete is used.A program is worked out and used to calculate two reinforced concrete slabs.The results of calculation are in good conformity with the correspond- ing test results.In addition,the influence of tension stiffening effect of cracked concrete on the results of calculation is discussed.
出处
《东南大学学报（自然科学版）》
EI
CAS
CSCD
1990年第1期47-53,共7页
Journal of Southeast University：Natural Science Edition
基金
国家自然科学基金
关键词
钢筋混凝土
板
非线性
有限元分析
reinforced concrete
slab
finite element method
non-linear structural analysis
