Steel Buildings in Europe

Part 7: Model Construction Specification 7 - 15 Contract documents shall specify the seismic zone of the individual project (according to the zonation map, decided by the National Authority, and found in the National Annex to EN 1998-1). Contract documents shall specify according to which concept earthquake resistant steel buildings shall be designed to (DCL, DCM or DCH). According to 6.2(8) of EN 1998-1, the required toughness of steel and welds and the lowest service temperature adopted in combination with the seismic action shall be defined in the contract documents.