Extended end-plate connections have been widely used in moment-resisti
ng steel frames with W-shape columns, due to their sufficient stiffnes
s and moment capacity. In addition, such connections are easy to insta
ll and permit good quality control. Extended end-plate connections can
also be employed in moment-resisting frames with hollow structural se
ction columns by using high strength blind bolts. These bolts have bee
n developed for installation from one side only where the rear side of
the connection is inaccessible. In this study, a quantitative procedu
re for detailing and designing beam extended end-plate connections for
rectangular hollow structural section columns using high strength bli
nd bolts is proposed. The design procedure is consistent with the desi
gn philosophy given in limit-state codes. The proposed design is based
on the results obtained from an experimental program and an analytica
l study.