Hysteresis behavior of semi-rigid double web angle steel connections

This study presents the cyclic behavior of two types of semi-rigid double web angle connections: bolted-bolted (angles bolted to the beam web and column flange) and welded-bolted (angles welded to beam web and bolted to column flange), with their bolts pretensioned to the proof load. Twenty test spe...

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Bibliographic Details
Published in:Journal of constructional steel research 2003-08, Vol.59 (8), p.1057-1082
Main Authors: Abolmaali, A., Kukreti, A.R., Razavi, H.
Format: Article
Language:English
Subjects:
Cyclic
Damping mechanism
Dynamic
Energy dissipation
Hysteresis
Moment–rotation
Pinching
Semi-rigid connections
Steel connections
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Summary:This study presents the cyclic behavior of two types of semi-rigid double web angle connections: bolted-bolted (angles bolted to the beam web and column flange) and welded-bolted (angles welded to beam web and bolted to column flange), with their bolts pretensioned to the proof load. Twenty test specimens were prepared and cyclic load was applied to each test specimen using load control at the beginning cycles, which was converted to displacement control in subsequent cycles upon yielding of angles or bolts materials. The moment–rotation hysteresis loops and the failure modes for all the test cases are presented. The failure modes for bolted-bolted test specimens, depending on angle thickness, were either excessive rotation or beam web bearing, and for the welded-bolted specimens were excessive rotation or bolt fracture. The stiffness, strength, and ductility of the tested connections are compared to those of flush end-plate moment connections reported in literature.
ISSN:0143-974X
1873-5983
DOI:10.1016/S0143-974X(03)00005-1