摘要
借助大型有限元分析软件ANSYS,结合实测结果,对复式钢管高强混凝土轴压短柱进行了数值模拟,得出的荷载—位移曲线与实验结果吻合良好。通过试件各部分纵向应力云图的分析,探讨了试件的受力及破坏机理。由于复合钢管的双重约束,复式钢管柱的承载能力及变形能力得到显著提高,具有很好的耐火性及良好的安全性。
By means of the finite element analysis software ANSYS,and comparing with the result of practical experiment,six groups duplex steel tubular high strength concrete short columns were numerical simulated.The load-displacement curves of axial loaded specimens were obtained,which agreed well with the test results.By analyzing longitudinal stress contours of every part of the specimen the loading mechanism and failure mode of specimens were analyzed.The test results show that the utilization of double steel pipe can significantly increase the load bearing capacity and deformation capacity,and present good fire-resistance and safety.
出处
《西南科技大学学报》
CAS
2010年第4期18-22,33,共6页
Journal of Southwest University of Science and Technology
基金
国家自然科学基金资助项目(59338120)
关键词
钢管混凝土
轴压
数值模拟
非线性分析
Steel tube
High strength concrete
Axial compression loading
Numerical simulation
Finite element analysis
