Modeling of Historical Timber Roof Truss of Želiv Monastery

Historical timber roof trusses are illustration of carpentry skills of an old era. Complexity of created structures is problem even in nowadays full usage of computer aided design. Especially in area of modeling joints and interaction of structural elements are ambiguities and inaccurate interpretations. The above issue is illustrated on 300 years old timber roof truss in Želiv monastery. The structure is Queen post shape with main trusses and secondary trusses. Especially static modeling of main trusses is problematic and difficult with utilization of beam or truss elements. Complex static model shows stiffness properties of joints as well as resistance of the whole truss structure against to climate loads and loads from rehabilitation intervention like replacement of roofing.