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.