ÖNORM B 1998-5

This Austrian Standard specifies national parameters to ÖNORM EN 1998-5 and shall be applied jointly with ÖNORM EN 1998-5 in Austria. This Part of Eurocode 8 establishes the requirements, criteria, and rules for the siting and foundation soil of structures for earthquake resistance. It covers the design of different foundation systems, the design of earth retaining structures and soil-structure interaction under seismic actions. As such it complements Eurocode 7 which does not cover the special requirements of seismic design. The provisions of Part 5 apply to buildings (EN 1998-1), bridges (EN 1998-2), towers, masts and chimneys (EN 1998-6), silos, tanks and pipelines (EN 1998-4). Specialised design requirements for the foundations of certain types of structures, when necessary, shall be found in the relevant Parts of Eurocode 8. Annex B of this Eurocode provides empirical charts for simplified evaluation of liquefaction potential, while Annex E gives a simplified procedure for seismic analysis of retaining structures. NOTE 1 Informative Annex A provides information on topographic amplification factors. NOTE 2 Informative Annex C provides information on the static stiffness of piles. NOTE 3 Informative Annex D provides information on dynamic soil-structure interaction. NOTE 4 Informative Annex F provides information on the seismic bearing capacity of shallow foundations.