摘要
对高强钢变截面格构柱进行了初始几何缺陷测量,得到构件的几何缺陷分布模式及最大缺陷值,并对高强钢格构柱进行极限承载力试验,研究了格构柱在两端铰接约束且轴心受压情况下的稳定极限承载力、破坏机理以及变形过程,结合试验研究结果,验证了采用非线性有限元数值分析方法进行高强钢格构柱极限承载分析的准确性和有效性。
The initial measurement for geometrical defects is performed for high-strength steel variable cross-section lattice column, in order to figure out the distribution mode of geometrical defects and maximum defect value for the compo- nent, with the limit bearing capacity test for high-strength steel lattice column. The stable limit bearing capacity, failure mechanism, and deformation process are researched under the condition that both ends of the lattice column is in articulated constraint and axial compression. Given the test research result, it＇ s showed the accuracy and effectiveness of limit bearing analysis for high-strength steel lattice column with non-linear finite element value analysis method is verified.
出处
《起重运输机械》
2013年第1期52-56,共5页
Hoisting and Conveying Machinery
基金
湖南省自然科学基金资助项目(10JJ4028)
关键词
高强钢
格构柱
极限承载力试验
初始几何缺陷
非线性有限元
high-strength steel
lattice column
finite element bearing capacity test
initial geometrical defect
non-linear finite element
