摘要
为满足装配式组合板-柱结构节点的承载要求,提出了两种预制钢板夹心混凝土组合板与结构柱节点的连接构造.利用ABAQUS有限元软件建立了组合板-柱连接节点的数值计算模型,分析了预制节点在冲切荷载作用下的承载性能及主要设计参数对其受力和变形性能的影响.结果表明,预制连接节点与同参数条件下的现浇节点相比,能够在保证良好延性的同时显著提升抗冲切承载力,说明连接组件能够对节点抗冲切性能产生积极贡献.此外,在外环板-贯穿螺栓连接中,建议选择方形或十字形外环板且强度等级与组合板一致,均取为Q345,并采用16个贯穿螺栓放射排布.对于外伸组合板-环向法兰连接,建议法兰厚度控制在20 mm左右,以获得最优的性价比.
In order to meet the bearing requirements of prefabricated composite slab‑column joints,two types of connection joints between steel‑concrete‑steel sandwich slab and structural column are proposed.Using ABAQUS finite element software,the numerical calculation model of composite slab column joint is established,and the bearing capacity of precast joint under punching load and the influence of main design parameters on its mechanical and deformation properties are analyzed.The results show that,compared with the cast‑in‑place joints under the same condition,the prefabricated connection joints can significantly increase the punching shear capacity while ensuring good ductility.These indicate that the connection components can make a positive contribution to the punching shear resistance of the joints.In addition,it is recommended to use a 16 through bolts radial arrangement and choose a square or cross shaped external diaphragm in the external diaphragm‑thru bolt connection.The diaphragm’s strength grade is consistent with the composite slab,which is taken as Q345.For the cantilever composite slab‑circumferential flange connection,it is suggested that the flange thickness should be controlled at about 20 mm,so as to make the joint own a higher cost performance.
作者
陈百玲
殷悦
高海洋
王连广
CHEN Bai-ling;YIN Yue;GAO Hai-yang;WANG Lian-guang(School of Resources&Civil Engineering,Northeastern University,Shenyang 110819,China)
出处
《东北大学学报(自然科学版)》
EI
CAS
CSCD
北大核心
2024年第10期1476-1484,共9页
Journal of Northeastern University(Natural Science)
关键词
装配式
板柱节点
组合板
数值模拟
受力分析
prefabricated
slab‑column joint
composite slab
numerical simulation
force analysis