In this paper, the authors are proposing a unified approach for the analysis of tridimensional structures with partial stiffness joints. The proposed approach allows for the quick modification of a software in order to take into account partial stiffness joints. After a review of the theory, we present two matrices to correct the fixed-end shear of flanges with partial stiffness joints. One of the matrix is concerned with bending, and the other deals with torsion. We also present two general cases of loading (bending and torsion) for the design of fixed-end shear and demonstrate how a tridimensional finite element can easily be modified to account for partial stiffness joints. We finally present a numerical technique that can generate equivalent nodal shear for situations where loads are partially distributed on one finite element of beam.Key words: analysis, joints, finite elements, software, matrix, stiffness, structure. [Journal translation]