Jazany, R.A., Hajirasouliha, I., Moghadam, A.S. et al. (2 more authors) (2016) Analytical study on the seismic performance of steel braced frames with masonry infill. Journal of Structural Engineering, 142 (10). 04016083. ISSN 0733-9445
Abstract
Special Concentrically Braced Frames (CBFs) are widely used as efficient lateral-load resisting systems in seismic regions. In this study, experimentally validated FE models are used to investigate the effects of masonry infill and gusset-plate configuration on the seismic performance of CBFs. It is shown that the presence of masonry infill can increase the initial stiffness and ultimate strength of CBFs by up to 35% and 52%, respectively. However, the frame-infill interaction imposes high plastic strain demands at the horizontal re-entrant corner of gusset plate connections, which may lead to premature failure of fillet welds under strong earthquakes. While using tapered gusset plates can significantly increase the fracture potential at fillet welds, gusset plates with elliptical clearance of eight times the plate thickness can lead to up to 54% lower equivalent plastic strain demands at both gusset plate connections and brace elements. While the effects of masonry infill are usually ignored in the seismic design process, the results highlight the importance of considering those effects in the seismic design of CBF elements and gusset plate connections.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016 ASCE. This is an author produced version of a paper subsequently published in Journal of Structural Engineering. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Concentrically Braced Frames; Masonry Infill; Gusset Plate; Fracture; Equivalent Plastic Strain |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 09 Mar 2016 12:03 |
Last Modified: | 28 Jun 2017 12:43 |
Published Version: | http://dx.doi.org/10.1061/(ASCE)ST.1943-541X.00015... |
Status: | Published |
Publisher: | American Society of Civil Engineers |
Refereed: | Yes |
Identification Number: | 10.1061/(ASCE)ST.1943-541X.0001548 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:96200 |