Load-bearing capacity reserve of the structure is the difference between the actual load-carrying capacity of a structure or its components and the loads occurring under normal conditions of use. It determines the safety margin that remains in the structure after the design loads are taken into account. It is particularly important in projects such as modular homes, where control of loads and component operation is key.
The load-bearing capacity reserve of a structure results from the design assumptions, safety factors and material properties. The static scheme of the structure is also important for the reserve. The parameter may change during the life of the building due to material degradation and changes in use. For the structure's load-bearing capacity reserve additional loads or interference with the structural system also have an impact.
The reserve analysis is important in assessing the technical condition of existing structures, planning superstructures, conversions and changes in the function of the building. It makes it possible to determine whether new loads can be safely introduced or whether the structure needs to be reinforced. It is also particularly important when changes are planned that affect elements such as roof trusses (e.g. additional loads on the roof, installations, attic adaptations).
