摘要
依据块体单元法的理论和计算模型,提出了考虑钢筋作用效应的块体单元法计算模型。在此模型中,钢筋被简化为线弹性体,选取标距段内的钢筋为基本钢筋单元,通过分析钢筋在块体单元中的受力特性,建立起钢筋的应力模式,然后得到其内力势能表达,将此势能并入结构的整体势能中,从而实现钢筋单元和块体单元的结合。算例结果表明,该模型合理且可行。
Based on the theory of block element method and calculating model, this paper suggests a calculating model for block element method with effect of reinforcing steel bar considered. In this calculating model, steel bars are simplified as the linear elastic body. The steel bars within the scale section are selected as the basic steel bar unit. The steel bar stress pattern is established via the analysis of the behaviors of steel bars subject to force within the block element, and then, the internal potential energy expres- sion is obtained; this potential energy can be combined into the whole potential energy within the structure, whereby realizing the combination of steel bar unit with block element. The results from the calculation examples indicate that this model is rational and feasible.
出处
《西安理工大学学报》
CAS
2008年第2期171-176,共6页
Journal of Xi'an University of Technology
关键词
块体单元法
钢筋作用效应
标距
应力模式
BEM
effect of reinforcing steel bar
scale section
stress-pattern
