This graduation thesis presents load-bearing systems of modern timber structures, suitable for large spans. For easier understanding of wooden wide span capabilities thesis presents already finished structures built around the world. A precondition to achieve large span lies in modern wooden products which are described in second chapter. Choice of suitable load-bearing system is also important. Thesis also covers timber load-bearing systems of large objects and wide span timber bridges.
In general I divided supporting systems in planar and spatial. Systems suitable for wide spans are described in detail. Their features and most commonly used fasteners are also described. I introduced the dominant load-bearing systems of timber bridges and their usage in practice.
This thesis also presents forecasts for the development of timber structures in the future, which depend on the research and development of materials, fasteners and software.