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Numerical Investigation of the Effect of the Seismic Design Provisions on the Response of Flexural-Dominated Partially Grouted Reinforced Masonry Shear Walls
https://orcid.org/http://orcid.org/0000-0001-8006-0115
https://orcid.org/http://orcid.org/0000-0001-8130-1785
https://orcid.org/http://orcid.org/0000-0001-9562-0461
Partially grouted reinforced masonry shear walls (PG-RMSWs) have emerged as an efficient and economic seismic force-resisting system (SFRS) in North America. Unlike fully grouted reinforced masonry shear walls (FG-RMSWs), where all masonry cells are grouted, in the PG-RMSWs system, grout is only placed in cells with vertical reinforcement and horizontally reinforced bond beams. Despite the economic benefits of PG-RMSWs systems in low-rise buildings, the use of such a system in mid- and high-rise structures is still questionable since minimal research has been conducted to study the behavior of flexural-dominated PG-RMSWs. The literature lacks comprehensive studies investigating different limitations adopted for flexural-dominated PG-RMSWs in the North American masonry design standards (i.e., TMS 402/602-16 and CSA S304-14). These limitations have a major influence on the ductility of the walls, the energy dissipation capacity, and the damping characteristics. Most of the conducted studies targeted FG-RMSWs and were then adopted for PG-RMSWs with some modifications and conservatism that do not always reflect the actual case. Accordingly, this study investigates the effect of various design parameters on the quasi-static lateral cyclic response of flexural-dominated PG-RMSWs. Eight walls with different aspect ratios were designed to represent the CSA S304-14 and TMS 402/602-16 different seismic provisions for moderately ductile reinforced masonry shear walls (RMSWs) and intermediate RMSWs, respectively. A 2D numerical simplified micro model was developed using the Extreme Loading for Structures (ELS) software to model the studied PG-RMSWs. The results showed that PG-RMSWs that satisfy seismic provisions of the TMS 402/602-16 intermediate RMSWs don’t possess enough ductility as required. On the other hand, the CSA S304-14 code provisions for moderately ductile reinforced masonry shear walls can be extended to cover partially grouted flexural-dominated RMSWs.
Numerical Investigation of the Effect of the Seismic Design Provisions on the Response of Flexural-Dominated Partially Grouted Reinforced Masonry Shear Walls
https://orcid.org/http://orcid.org/0000-0001-8006-0115
https://orcid.org/http://orcid.org/0000-0001-8130-1785
https://orcid.org/http://orcid.org/0000-0001-9562-0461
Partially grouted reinforced masonry shear walls (PG-RMSWs) have emerged as an efficient and economic seismic force-resisting system (SFRS) in North America. Unlike fully grouted reinforced masonry shear walls (FG-RMSWs), where all masonry cells are grouted, in the PG-RMSWs system, grout is only placed in cells with vertical reinforcement and horizontally reinforced bond beams. Despite the economic benefits of PG-RMSWs systems in low-rise buildings, the use of such a system in mid- and high-rise structures is still questionable since minimal research has been conducted to study the behavior of flexural-dominated PG-RMSWs. The literature lacks comprehensive studies investigating different limitations adopted for flexural-dominated PG-RMSWs in the North American masonry design standards (i.e., TMS 402/602-16 and CSA S304-14). These limitations have a major influence on the ductility of the walls, the energy dissipation capacity, and the damping characteristics. Most of the conducted studies targeted FG-RMSWs and were then adopted for PG-RMSWs with some modifications and conservatism that do not always reflect the actual case. Accordingly, this study investigates the effect of various design parameters on the quasi-static lateral cyclic response of flexural-dominated PG-RMSWs. Eight walls with different aspect ratios were designed to represent the CSA S304-14 and TMS 402/602-16 different seismic provisions for moderately ductile reinforced masonry shear walls (RMSWs) and intermediate RMSWs, respectively. A 2D numerical simplified micro model was developed using the Extreme Loading for Structures (ELS) software to model the studied PG-RMSWs. The results showed that PG-RMSWs that satisfy seismic provisions of the TMS 402/602-16 intermediate RMSWs don’t possess enough ductility as required. On the other hand, the CSA S304-14 code provisions for moderately ductile reinforced masonry shear walls can be extended to cover partially grouted flexural-dominated RMSWs.
Numerical Investigation of the Effect of the Seismic Design Provisions on the Response of Flexural-Dominated Partially Grouted Reinforced Masonry Shear Walls
https://orcid.org/http://orcid.org/0000-0001-8006-0115
https://orcid.org/http://orcid.org/0000-0001-8130-1785
https://orcid.org/http://orcid.org/0000-0001-9562-0461
Partially grouted reinforced masonry shear walls (PG-RMSWs) have emerged as an efficient and economic seismic force-resisting system (SFRS) in North America. Unlike fully grouted reinforced masonry shear walls (FG-RMSWs), where all masonry cells are grouted, in the PG-RMSWs system, grout is only placed in cells with vertical reinforcement and horizontally reinforced bond beams. Despite the economic benefits of PG-RMSWs systems in low-rise buildings, the use of such a system in mid- and high-rise structures is still questionable since minimal research has been conducted to study the behavior of flexural-dominated PG-RMSWs. The literature lacks comprehensive studies investigating different limitations adopted for flexural-dominated PG-RMSWs in the North American masonry design standards (i.e., TMS 402/602-16 and CSA S304-14). These limitations have a major influence on the ductility of the walls, the energy dissipation capacity, and the damping characteristics. Most of the conducted studies targeted FG-RMSWs and were then adopted for PG-RMSWs with some modifications and conservatism that do not always reflect the actual case. Accordingly, this study investigates the effect of various design parameters on the quasi-static lateral cyclic response of flexural-dominated PG-RMSWs. Eight walls with different aspect ratios were designed to represent the CSA S304-14 and TMS 402/602-16 different seismic provisions for moderately ductile reinforced masonry shear walls (RMSWs) and intermediate RMSWs, respectively. A 2D numerical simplified micro model was developed using the Extreme Loading for Structures (ELS) software to model the studied PG-RMSWs. The results showed that PG-RMSWs that satisfy seismic provisions of the TMS 402/602-16 intermediate RMSWs don’t possess enough ductility as required. On the other hand, the CSA S304-14 code provisions for moderately ductile reinforced masonry shear walls can be extended to cover partially grouted flexural-dominated RMSWs.
Numerical Investigation of the Effect of the Seismic Design Provisions on the Response of Flexural-Dominated Partially Grouted Reinforced Masonry Shear Walls
Lecture Notes in Civil Engineering
Desjardins, Serge (editor) / Poitras, Gérard J. (editor) / El Damatty, Ashraf (editor) / Elshaer, Ahmed (editor) / Elmeligy, Omar (author) / Abdelrahman, Belal (author) / Galal, Khaled (author)
Canadian Society of Civil Engineering Annual Conference ; 2023 ; Moncton, NB, Canada
Proceedings of the Canadian Society for Civil Engineering Annual Conference 2023, Volume 12 ; Chapter: 31 ; 383-395
2024-12-13
13 pages
Article/Chapter (Book)
Electronic Resource
English
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