摘要
为计算椭圆钢管混凝土短柱的偏压承载力,利用有限元软件ABAQUS建立数值分析模型,并用已有试验结果和纤维单元法计算结果验证该有限元模型的准确性.在此基础上,对椭圆钢管混凝土短柱进行有限元分析,探明截面比、混凝土抗压强度、钢管屈服强度和偏心距等主要参数对其偏压性能的影响规律.研究表明,已有椭圆钢管混凝土短柱的偏压承载力计算公式与有限元分析结果吻合较好,已有的短柱偏压承载力计算公式和文章有限元模型可用于指导工程实践,促进椭圆钢管混凝土柱的应用.
In order to calculate the bearing capacity of eccentrically loaded concrete filled short oval steel tube column,numerical analysis model is established using the finite element software ABAQUS,and the accuracy of the finite element model is verified by the existing test results and the calculation results of the fiber element method.On this basis,the finite element analysis of eccentrically loaded concrete filled short oval steel tube column is carried out,and the influences of main parameters such as cross-section ratio,concrete compressive strength,steel tube yield strength and eccentricity on the eccentrically loaded performance are explored.It shows that the results from the calculation formulas of the bearing capacity of eccentrically loaded concrete filled short oval steel tube column are in good agreement with those of finite element analysis.The existing calculation formulas and finite element models can be used to guide the engineering practice and promote the application of concrete filled steel tubular columns.
出处
《浙江树人大学学报（自然科学版）》
2018年第3期33-39,共7页
Journal of Zhejiang Shuren University(Acta Scientiarum Naturalium)
基金
2017年度国家级大学生创新创业训练计划项目(201711842019)
关键词
椭圆钢管混凝土短柱
偏压
不均匀约束
有限元
承载力
concrete filled short oval steel tube column
eccentrically loaded
uneven constraint
finite element
bearing capacity
