Abstract: The invention relates to a mast arrangement having at least two single masts and at least one beam connecting the single masts, wherein at least one shear connector provided with anchor pins engaging the anchor pins in the an exterior side of the beam and/or the single mast to connect the beam to one of the single masts. Said mast arrangement is easily statically calculated, so that it can be designed appropriately for the load at a low cost.

Abstract: A wooden beam for a supporting framework has at least two supporting members at least partially made of wood and defining together a continuous hollow cavity, and at least one shear connector located in the hollow cavity and characterized by a plurality of connection options, with the shear connector having its outside end set back with respect to an adjacent and face of the beam by a length corresponding to a forward wood length defined by a load applied to the beam.

Abstract: This invention relates to a joining system (1) for fixedly joining at least two elements (2, 3), in particular girders, comprising at least one first element (2) which is adjacent at one of its ends to the other element (3) on a contact surface (14) and is attached to this element with a joining means (11) and at least one connecting part (7), in particular a shear connector made of a high-strength material, preferably metal, which is connected to one of the elements (2), in particular by being integrated into it. To permit an improved possibility for fastening the two elements, it is provided according to this invention that the connecting part (7), in particular the shear connector, is provided with a continuous recess (9), in particular with a borehole, and the joining means (11) extends through the recess (9), whereby the element (2) receiving the connecting part (7) is designed as a wooden component.