Impact of introducing semi-rigid moment frames on seismic response of braced frames

View/ Open
Access
info:eu-repo/semantics/openAccesshttp://creativecommons.org/publicdomain/zero/1.0/Date
2019Metadata
Show full item recordCitation
Faytarouni, M., Seker, O., Akbas, B., & Shen, J. (May 20, 2019). Impact of introducing semi-rigid moment frames on seismic response of braced frames. Interdependence between Structural Engineering and Construction Management.Abstract
Maximum seismic inelastic drift demand in a steel building with braced frames as primary seismic-force-resisting (SFR) system tends to concentrate in few stories without considering inherent participation of designed gravity-force-resisting (GFR) system in actual structural stiffness and strength. The influence of GFR system on stiffness and strength can be taken into account by considering the composite action in beam-to-column shear connections that exist in modern steel building construction to form actual semi-rigid moment-resisting frames. Therefore, modeling semi-rigid moment frames as an equivalent to the GFR system in braced frame buildings could be utilized as a representative to the strength provided by gravity frames. This paper presents a seismic evaluation of a six-story chevron braced frame, with and without semi-rigid moment frame. Four different cases are investigated under a set of ground motions and results are discussed in terms of story drift distribution along the height. The results pointed out that the current findings lay a foundation to conduct further investigation on the seismic performance of braced frames as designed SFR system together with GFR system.
Source
Interdependence between Structural Engineering and Construction ManagementCollections
The following license files are associated with this item: