高强度螺栓受剪连接性能分析

在实验的基础上,提出单个高强度螺栓连接轴心受剪的荷载—变形曲线计算公式,公式以分段函数形式反映连接的摩擦、滑移和承压三个阶段,同时适用于无滑移连接的荷载—变形曲线计算。对于高强度螺栓连接偏心受剪性能采用极限状态法计算,其中每个螺栓都服从于上述非线性关系。本文编制了解决这个非线性问题的计算机程序。分析结果与实验比较普遍吻合较好。

ANALYSIS OF THE BEHAVIOUR OF HIGH STRENGTH BOLTED SHEAR CONNECTIONS

On the basis of experimental tests,a formula is proposedfor the computation of the load-deformation curves of the single highstrength bolted connections in axial shear forces,which is a piecewisefunction describing three stages of friction,slipping and bearing of theconnections,and is also suitable for the non-slip connections.The limitstate method is used to compute the behaviour of high strength boltedconnections subject to eccentric shear,in which each bolt obeys thenon-linear relationship aforementioned.In this paper,the computer pro-gram is worked out to solve the non-linear problems.Analytical resultsare shown to be in general good agreement with experimental data.