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High-Performance Steel-Timber Hybrid Rocking Shear Wall System for Mid-Rise to High-Rise Buildings: Preliminary Seismic Study
The use of sustainable design has seen traction due to worldwide climate targets. These methods have advanced technological development, resulting in resilient solutions that reduce the carbon footprint of structures through materials used, construction sequences, and end-of-life processes. Steel-plate shear walls have been used for decades. Their ductile properties result in structures suitable in seismic regions such as Cascadia, and their lightweight properties facilitate assembly on-site; however, their low stiffness and onerous manufacturing processes result in a lack of popularity over other materials. In this study, a high-performance hybrid steel-timber rocking shear wall system is introduced for resilient, sustainable structures. The system combines the favorable properties of steel and cross-laminated timber (CLT), resulting in a composite CLT-steel wall section. Each wall is pinned at the base and incorporates resilient slip friction joint dampers, dissipating energy while rocking. The cross-section of the walls consists of readily available materials, ensuring commercial viability. A modular system that delivers resilient structural performance, streamlines prefabrication, and enables rapid construction has been developed. The system is applied to a benchmark structure in Vancouver, Canada, and the cross-section is modeled using ANSYS, where parameters such as material thicknesses and strength are varied to determine the optimal configuration. The behavior of the system is then implemented and calibrated in OpenSees, where nonlinear seismic analyses are executed using selected ground motions according to NBCC2020 guidelines. Results confirm that system performance yields an adjusted collapse margin ratios that result in a weighted average ACMR exceeding FEMA P-695 guidelines.
High-Performance Steel-Timber Hybrid Rocking Shear Wall System for Mid-Rise to High-Rise Buildings: Preliminary Seismic Study
The use of sustainable design has seen traction due to worldwide climate targets. These methods have advanced technological development, resulting in resilient solutions that reduce the carbon footprint of structures through materials used, construction sequences, and end-of-life processes. Steel-plate shear walls have been used for decades. Their ductile properties result in structures suitable in seismic regions such as Cascadia, and their lightweight properties facilitate assembly on-site; however, their low stiffness and onerous manufacturing processes result in a lack of popularity over other materials. In this study, a high-performance hybrid steel-timber rocking shear wall system is introduced for resilient, sustainable structures. The system combines the favorable properties of steel and cross-laminated timber (CLT), resulting in a composite CLT-steel wall section. Each wall is pinned at the base and incorporates resilient slip friction joint dampers, dissipating energy while rocking. The cross-section of the walls consists of readily available materials, ensuring commercial viability. A modular system that delivers resilient structural performance, streamlines prefabrication, and enables rapid construction has been developed. The system is applied to a benchmark structure in Vancouver, Canada, and the cross-section is modeled using ANSYS, where parameters such as material thicknesses and strength are varied to determine the optimal configuration. The behavior of the system is then implemented and calibrated in OpenSees, where nonlinear seismic analyses are executed using selected ground motions according to NBCC2020 guidelines. Results confirm that system performance yields an adjusted collapse margin ratios that result in a weighted average ACMR exceeding FEMA P-695 guidelines.
High-Performance Steel-Timber Hybrid Rocking Shear Wall System for Mid-Rise to High-Rise Buildings: Preliminary Seismic Study
Lecture Notes in Civil Engineering
Mazzolani, Federico M. (editor) / Piluso, Vincenzo (editor) / Nastri, Elide (editor) / Formisano, Antonio (editor) / Alsamouly, Aly (author) / Loss, Cristiano (author)
International Conference on the Behaviour of Steel Structures in Seismic Areas ; 2024 ; Salerno, Italy
2024-06-24
12 pages
Article/Chapter (Book)
Electronic Resource
English
Seismic Performance of High-Rise Hybrid Buildings
British Library Conference Proceedings | 1996
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