摘要
基于Kulak计算模型,验证并比较了中国和欧洲铝合金结构规范的相关设计公式.完成了9组共25个国产铝合金构件T形连接的试验,对试验结果和按规范公式的计算结果进行了比较.进行了大规模的T形连接数值计算,考察连接几何参数对其破坏模式和极限承载力的影响,并分析了T形连接几何参数对其翼缘有效长度的影响.根据试验和数值模拟结果,进一步完善了T形连接的计算模型和基本假定,并基于欧洲铝合金结构规范公式提出了修正公式.
On the basis of Kulak prying model, the formulas for calculating ultimate load-bearing capacity of T-stub joints in Chinese code and European code are verified and compared. Tests of 25 T-stub joints consisting of 9 groups are conducted. Furthermore, large-scale of numerical parametric analysis is performed to investigate the influence of several geometrical parameters on the behavior of aluminum alloy T-stub joints including failure modes, ultimate load-bearing capacity and effective length of flanges. Based on the test results and numerical results, the model and assumptions of T-stub joints are modified. Finally, the correction formulas based on EC9 are obtained.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2012年第10期1445-1451,共7页
Journal of Tongji University:Natural Science
基金
国家自然科学基金(50908168)
关键词
铝合金构件T形连接
极限承载力
试验研究
数值模拟
修正公式
aluminum alloy T-stub joints
ultimate load- bearing capacity
experimental research
numerical simulation
correction formulas
