摘要
设计了一个原型足尺推出试件,进行单调推出试验,研究了Φ19 mm群钉抗剪性能。应用ABAQUS有限元分析软件,进行模拟分析,模拟结果与试验结果吻合较好。基于该模型基础上进行参数分析,研究混凝土强度等级及栓钉纵向间距对试件抗剪能力的影响,有限元结果表明,群钉抗剪承载力随混凝土强度等级、群钉纵向间距增大而提高。
A prototype full-scale push-out specimen is designed,and a monotonous push-out test is carried out to study the shearing performance of Φ19 mm group nails. A finite element analysis software ABAQUS is used to carry out the simulation analysis,and the simulation results are in good agreement with the test results. Based on the model,the parameter analysis is carried out to study the effect of concrete strength grade and longitudinal distance of group nails on the shearing performance of the specimen. The results of finite element analysis show that the shearing bearing capacity of group nails is increased with the increasing concrete strength grade and longitudinal distance of group nails.
作者
陈迎春
廖宏
杜光明
廖丽莎
刘雨晴
Chen Yingchun;Liao Hong;Du Guangming;Liao Lisha;Liu Yuqing(Hunan Hongshang Testing Technology Co.,Ltd.,Changsha 410208,Hunan;College of Civil Engineering and Mechanics,Xiangtan University,Xiangtan 411105,Hunan)
出处
《工程建设》
2020年第6期6-12,54,共8页
Engineering Construction
关键词
群钉
抗剪承载力
推出试验
有限元分析
group nails
shearing bearing capacity
push-out test
finite element analysis
