摘要
在钢筋混凝土板结构分析中，模拟用以描述混凝土各向同性及各向异性性态的本构方程仍旧是结构工程中最困难的任务之一。本文对静荷载作用下的钢筋混凝土板就弹性、塑性及开裂条件等性态进行了数值模拟分析。退化厚壳单元用于对结构沿厚度分层散化。混凝土的性质沿厚度分层指定。钢筋模拟成线单元。为了模拟混凝土压缩性态，分别应用了理想塑性及应变硬化模式。
The problem of modeling the constitutive equation representing the isotropic and anisotropy behavior of concrete in the analysis of reinforced concrete plate structures remains one of the most difficult tasks in the field of structural engineering. At present the analysis is being carried out on reinforced concrete plate structure with elastic, plastic and cracking conditions under static loads. Degenerate thick shell elements employing a layered discretization through the thickness are adopted. The concrete properties are specified for each layer through the thickness. The reinforced steel is simulated as the line elements. In the analysis, both perfect and strainhardening plasticity approaches are employed to model the compression behavior of concrete.
出处
《海洋工程》
CSCD
1998年第2期57-64,共8页
The Ocean Engineering
基金
国家自然科学基金
关键词
钢筋混凝土板
数值模拟
线单元
退化壳单元
弹塑性
reinforced concrete plate numerical modeling line element degenerate shell element elastoplasticity
