摘要
考虑到混凝土具有弹塑性耦合的性质,本文运用弹塑性理论在应变空间建立了一个能描述混凝土应变和刚度变化的塑性面,通过改变屈服阈值来分析混凝土在疲劳加载下的本构特征。计算结果表明,该模型能较好的描述混凝土在单轴及多轴单调加载和疲劳加载下的性质。
Considering the elastoplastic performance of concrete,this paper established a plasticity surface which can describe the change of strain and stiffness using elastoplastic theory in strain space.The fatigue constitutive characteristic of concrete is analyzed by changing the yielding threshold value.It is proved by calculation that the model can well describe the performance of concrete under uniaxial and multiaxial monotonic and fatigue loading.
出处
《混凝土》
CAS
CSCD
2003年第1期7-9,15,共4页
Concrete
基金
混凝土疲劳破坏准则(50078010)
