摘要
提出采用三维实体退化虚拟层合梁单元计算钢曲梁极限承载力的方法。考虑结构的几何非线性和材料非线性,利用该单元编制了极限承载力计算程序,并将其应用于钢曲梁极限承载力的分析。计算实例表明,该单元收敛快,稳定性好,在单元数较少的情况下,具有较高的精度。由于能克服壳体单元或梁段单元法的缺陷,该计算方法具有更强的通用性。
The method for analyzing ultimate load capacity of steel curved beam with degenerated three-dimensional solid virtual laminated beam element is presented. With the influence of geometrical and material nonlinearity considered, the computing of ultimate load capacity for steel curved beam is programmed with the element. The program is used to analyze ultimate load capacity for steel curved beam. Numerical results show the advantages of the element such as fast convergence, good stability and high precision. Because the limitation of shell elements or beam segment elements are overcome, the method has better universality.
出处
《工程力学》
EI
CSCD
北大核心
2006年第A01期134-139,共6页
Engineering Mechanics
关键词
三维实体退化梁单元
虚拟层合
钢曲梁
极限承载力
非线性
degenerated three-dimensional solid beam element
virtual laminate
steel curved beam
ultimate load capacity
nonlinearity
