摘要
为了考察全装配式栓钉剪力键(PCSS)的抗剪性能,完成了PCSS与带T肋混凝土板的常规栓钉剪力键对比推出试验,并且与已有的常规平板剪力键推出试验结果进行了对比研究。研究结果表明:PCSS的抗剪刚度与常规T肋剪力键的抗剪刚度相比提高了8%,与同直径常规平板剪力键的抗剪刚度相比提高了27%;PCSS的抗剪承载力与常规T肋剪力键的抗剪承载力相比提高了27%,比同直径常规平板剪力键的抗剪承载力相比提高了9%。此外,通过建立2种不同摩擦界面的PCSS有限元分析模型,对比分析了不同摩擦的竖钢板-混凝土界面对剪力键抗剪性能的影响,揭示了两侧竖钢板对PCSS抗剪性能的影响规律。
In order to study the shear performance of a novel prefabricated composite shear stud(PCSS) connector,a comparison test is carried out between the PCSS and the conventional shear stud connector in T-ribbed concrete slab,and the existing conventional flat shear connector push-out tests are also compared. The test results show that the shear stiffness of PCSS is 8% higher than that of conventional T-ribbed shear stud,and 27% higher than that of conventional flat shear stud with the same diameter. The shear capacity of PCSS is 27% higher than that of conventional T-ribbed shear stud,and 9% higher than that of conventional flat shear stud with the same diameter.Through the two different friction interface in the finite element analysis models of PCSS,the influence of the vertical steel plate-concrete interface with different friction on the shear performance of the PCSS is analyzed and compared.The influence law of the vertical steel plates at both sides on the shear performance of PCSS is evaluated.
作者
王学飞
高燕梅
王昱
范亮
WANG Xuefei;GAO Yanmei;WANG Yu;FAN Liang(School of Civil Engineering,Chongqing Jiaotong University,Chongqing 400074,China;State Key Laboratory of Mountain Bridge and Tunnel Engineering,Chongqing Jiaotong University,Chongqing 400074,China)
出处
《建筑钢结构进展》
CSCD
北大核心
2022年第7期20-28,37,共10页
Progress in Steel Building Structures
基金
国家自然科学基金(52008066)
重庆市自然科学基金(cstc2020jcyj-msxmX0062)。
关键词
组合结构
栓钉剪力键
推出试验
抗剪性能
机理分析
composite structure
shear stud connector
push-out test
shear performance
mechanism analysis
