The work provides an analytical evaluation of the Eurocode 3 classific
ation on the three types of beam-to-column connections in steel constr
uction. Extensive studies of the behavior of such connections in frame
s have been made, using the database complied by Kishi and Chen. These
studies showed that most connections have semi-rigid behavior for dri
ft check at service load, but become flexible for strength check at fa
ctored load. The EC3 code provides a suitable classification for ultim
ate strength check but is not adequate for drift check. (C) 1997 Elsev
ier Science Ltd.