The lateral torsional buckling behaviour of two-part laminated girders can be influenced very advantageously by means of intermediate links. The reason for it represents mainly the shearing connecting of the two elements in their longitudinal direction. Furthermore the intermediate links cause an elastic torsional coupling which is the reason why the lateral torsional buckling of the single parts of the girder also is determined by vertical displacements besides the usual torsions and horizontal displacements which require further deformation energy. In this paper the bifurcation loads are determined for a girder with different types of the intermediate links by means of a finite element analysis. In addition nonlinear elasticity calculations according to theory of second order are carried out to get the forces and moments of the links. The results of the investigations demonstrate that connections between the two parts of the girder are the reason that the buckling loads rise significantly. The arithmetical consideration of the connections at the supports alone shows already very positive consequences on the buckling behaviour of the girder. © Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG.