Ma. Bhatti et Jd. Hingtgen, EFFECTS OF CONNECTION STIFFNESS AND PLASTICITY ON THE SERVICE LOAD BEHAVIOR OF UNBRACED STEEL FRAMES, Engineering journal, 32(1), 1995, pp. 21-33
Citations number
12
Categorie Soggetti
Construcion & Building Technology","Engineering, Civil
Accurate determination of the relative restraint of beam-to-column con
nections is important for both the strength and serviceability of stru
ctural frames. Overestimating the connection restraint can result in u
nderestimating lateral sway and underestimating the connection restrai
nt can lead to underestimating forces developed in the beams and colum
ns. Both conditions can influence structural instability. This paper e
xamines the effects that certain connection parameters have on the ser
viceability limit state of unbraced steel frames. The connections are
modeled as elastic-perfectly plastic and are described by their elasti
c stiffness and the ultimate moment capacity. The second order P-delta
effects are included. The effect of connection geometry on lateral sw
ay for an unbraced, 3-bay and 5-story office building is studied. Thre
e types of bolted connections: single and double web-angle, top- and s
eat-angle, and top- and seat-angle with double web-angles are examined
and their effect on lateral sway is compared with and without second
order P-delta effects.