摘要
在螺栓受拉连接设计中,撬力作用对螺栓和连接件的影响不可忽视。分析了钢结构高强螺栓受拉连接采用外伸端板的破坏机理,以及撬力的计算理论,对已有的撬力计算公式进行修正,提出外伸式端板连接受拉螺栓弯矩的近似计算公式,并通过清华大学的相关试验数据进行验证。研究结果表明:按照文中的方法计算螺栓撬力及弯矩是可行的。
in the design of bolts tensile connections, the effects of the prying action on connected parts and bolts cannot be neglected. The failure mechanism of the high strength bolt tensile connection with extended end plate was analyzed. The current formula of prying action was modified. The approximate calculation formula of bending moment of tensile bolts with end plate was analyzed, which was verified by the experimental data of Tsinghua University. The results show that the calculation method of prying action and bending moment of bolts is feasible.
出处
《建筑结构》
CSCD
北大核心
2013年第9期88-91,共4页
Building Structure
基金
"13115"科技创新工程重大科技专项项目(2009ZDKG-66)
关键词
高强螺栓
撬力
节点连接
T形接头
弯矩
high strength bolt
prying action
connection
T-shaped joint
bending moment
