摘要
为了分析钢结构T形连接高强度螺栓受力性能,对10个不同构造参数的T形连接件进行试验及有限元研究,比较T形件构造参数变化对高强度螺栓力学性能的影响,并对高强度螺栓受力进行数值模拟。结果表明:螺栓直径、翼缘板厚度及螺栓间距等构造参数变化对T形件连接高强度螺栓受力产生不同程度的影响,设计中可根据具体情况选择最优的构造形式;高强度螺栓除受到撬力的影响外,还受到弯矩的影响;根据试验数据拟合的高强度螺栓拉力及弯矩的半经验计算公式计算值与试验结果吻合良好,可供工程应用参考。
In order to study the mechanical behavior of high strength bolts in T-stub connections of steel structure, experiment and finite element analysis of 10 specimens with difference configuration parameters were carried out, influences of configuration parameters of T-stub connections on mechanical behavior of high strength bolts were compared, and numerical simulation of force of high strength bolt was presented. The results show that the configuration parameters such as diameter of bolt, thickness of flange plate and pitch of bolts have different influences on the mechanical behavior of high strength bolts, constructional types of T-stub connections should be selected according to specific situations. Prying force and bending moment affect mechanical behavior of high strength bolts. Semi-empirical fitting formulas of tensile force and bending moment of high strength bolts achieved by experimental data agree well with the test results. The research conclusions can be used as reference for the engineering application.
出处
《建筑科学与工程学报》
CAS
北大核心
2016年第2期63-70,共8页
Journal of Architecture and Civil Engineering
基金
国家自然科学基金项目(51508290)
青岛市博士后研究人员应用研究项目
关键词
钢结构
T形连接
高强度螺栓
受力分析
数值模拟
弯矩
steel structure
T-stub connection
high strength bolt
force analysis
numerical sim-ulation
bending moment
