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A platform for research: civil engineering, architecture and urbanism
Seismic Response of Two-Bay Steel Multi-Tiered Concentrically Braced Frames
This paper investigates the possibility of using multi-tiered concentrically braced frames in two adjacent column bays to resist seismic loads. Three prototype frames part of a single-storey building were chosen and designed using current knowledge of multi-tiered behaviour. The columns were selected to resist in-plane bending and axial loads arising from tensile yielding and compression buckling of braces in critical tiers. The lateral response of the frame was then examined using the nonlinear response history analyses under ground motion accelerations. The analyses confirmed that all frames exhibited nonuniform brace tensile yielding between tiers, which resulted in the concentration of inelastic drifts in the uppermost tiers. Peak storey drift values remained under 2.5%, although higher than the design predictions, which influenced the prediction of column in-plane bending.
Seismic Response of Two-Bay Steel Multi-Tiered Concentrically Braced Frames
This paper investigates the possibility of using multi-tiered concentrically braced frames in two adjacent column bays to resist seismic loads. Three prototype frames part of a single-storey building were chosen and designed using current knowledge of multi-tiered behaviour. The columns were selected to resist in-plane bending and axial loads arising from tensile yielding and compression buckling of braces in critical tiers. The lateral response of the frame was then examined using the nonlinear response history analyses under ground motion accelerations. The analyses confirmed that all frames exhibited nonuniform brace tensile yielding between tiers, which resulted in the concentration of inelastic drifts in the uppermost tiers. Peak storey drift values remained under 2.5%, although higher than the design predictions, which influenced the prediction of column in-plane bending.
Seismic Response of Two-Bay Steel Multi-Tiered Concentrically Braced Frames
Lecture Notes in Civil Engineering
Mazzolani, Federico M. (editor) / Dubina, Dan (editor) / Stratan, Aurel (editor) / Comeau, Christophe (author) / Cano, Pablo (author) / Tremblay, Robert (author) / Imanpour, Ali (author)
International Conference on the Behaviour of Steel Structures in Seismic Areas ; 2022 ; Timisoara, Romania
2022-05-08
8 pages
Article/Chapter (Book)
Electronic Resource
English
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