Lisakoormus

Lisakoormus is an Estonian term meaning "additional load" or "extra load." It is widely used in engineering, architecture, transport, and information technology to denote loads that exceed a base or nominal operating condition.

In structural engineering, lisakoormus refers to supplementary forces or weights applied to a structure for design and safety assessment, such as snow accumulation, wind pressure variations, temporary construction loads, or stored materials. Designers incorporate lisakoormus into load combinations to verify that structures meet safety and serviceability requirements under diverse scenarios. In building codes and standards common in Estonia and Europe, lisakoormus is considered alongside other load categories, with appropriate safety factors to ensure stability even when unexpected conditions occur.

In mechanical and civil engineering, lisakoormus helps evaluate the effect of extra mass, equipment, or temporary installations on performance and reliability. In computing and information technology, the term can describe the added workload placed on a system, service, or network, used during capacity planning or stress testing to ensure reliability under peak demand. In logistics, it may denote additional payload carried by vehicles, containers, or pallets beyond standard capacity.

Etymologically, lisakoormus is formed from lis- meaning "additional" and koormus meaning "load" in Estonian. The term is common in technical discourse in Estonia and appears in localized documentation for international standards.