Einführung des Eurocodes 8 in der Schweiz.

Introduction of Eurocode 8 in Switzerland In Switzerland, Eurocode 8 was introduced in three phases. The first phase includes since 2003 a new version of the SIA structural standards compatible with the Eurocodes. For this purpose, the earthquake‐resistant design provisions were integrated into the other structural standards. In the second phase, starting in 2005, all six parts of Eurocode 8 were published as Swiss standards together with a National Foreword, but without a National Annex with the Nationally Determined Parameters. They have to be defined on a project‐specific basis, compatible with the SIA structural standards. In the third phase, in 2019, National Annexes were published for Part 1 (general rules and buildings) and Part 2 (bridges) of Eurocode 8. National Annexes have definitely not been prepared for the remaining four parts of Eurocode 8, which concern special as well as existing structures. The paper explains the background of the three‐phase approach and its acceptance in practice. A special focus is placed on the seismic zoning map and its harmonization along the borders with neighboring countries. It concludes with an outlook on the introduction of the second generation of Eurocodes (EC2G) beginning in 2025. [ABSTRACT FROM AUTHOR]