Plastic torsion on frictional joints and three-dimensional limit analysis of masonry structures

摘要

The plastic torsion of arbitrarily shaped, frictional joints is established together with its interactionswith bending moments and shear forces. In order to solve limit analysis problems,a piecewise linear approximation of the yield function for rectangular joints is proposed.The proposal is incorporated into a model for limit analysis of masonry structuresregarded as rigid block assemblages interacting through no tension, frictional joints. An examplevalidates the proposal.