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Lateral Seismic Force Distribution Between Gravity-Force-Resisting Steel Modules and Reinforced Concrete Shear Walls
Volumetric modular building structures are becoming increasingly popular due to their significant advantages over traditional on-site construction in terms of speed, quality of workmanship, and environmental impacts. A common type of modular building structure consists of gravity-force-resisting steel modules laterally supported by precast or cast-in-situ reinforced concrete shear walls. This type of modular structural system is common in mid- and high-rise modular buildings. In this system, the shear walls are designed to resist 100% of the lateral loads, followed by designing the gravity-force-resisting modules to stay elastic or have the sufficient nonlinear capacity to support the gravity loads while undergoing earthquake-induced deformations. However, the steel modules inherently exhibit a certain amount of lateral rigidity intended to resist the handling and transportation loads, forming a hybrid system that inevitably attracts a fraction of the total lateral loads. This study examines the effects of three parameters on inter-story shear distribution between gravity-force-resisting modules and the reinforced concrete shear walls: (1) the partial rigidity of intra-module connections, (2) the rotational rigidity of the vertical component of the inter-module connection, and (3) the in-plane stiffness of discrete floor diaphragms. It was found that the proportion of inter-story shear in gravity-force-resisting modules can be minimized by adequately designing the three aforementioned components above.
Lateral Seismic Force Distribution Between Gravity-Force-Resisting Steel Modules and Reinforced Concrete Shear Walls
Volumetric modular building structures are becoming increasingly popular due to their significant advantages over traditional on-site construction in terms of speed, quality of workmanship, and environmental impacts. A common type of modular building structure consists of gravity-force-resisting steel modules laterally supported by precast or cast-in-situ reinforced concrete shear walls. This type of modular structural system is common in mid- and high-rise modular buildings. In this system, the shear walls are designed to resist 100% of the lateral loads, followed by designing the gravity-force-resisting modules to stay elastic or have the sufficient nonlinear capacity to support the gravity loads while undergoing earthquake-induced deformations. However, the steel modules inherently exhibit a certain amount of lateral rigidity intended to resist the handling and transportation loads, forming a hybrid system that inevitably attracts a fraction of the total lateral loads. This study examines the effects of three parameters on inter-story shear distribution between gravity-force-resisting modules and the reinforced concrete shear walls: (1) the partial rigidity of intra-module connections, (2) the rotational rigidity of the vertical component of the inter-module connection, and (3) the in-plane stiffness of discrete floor diaphragms. It was found that the proportion of inter-story shear in gravity-force-resisting modules can be minimized by adequately designing the three aforementioned components above.
Lateral Seismic Force Distribution Between Gravity-Force-Resisting Steel Modules and Reinforced Concrete Shear Walls
Lecture Notes in Civil Engineering
Desjardins, Serge (editor) / Poitras, Gérard J. (editor) / El Damatty, Ashraf (editor) / Elshaer, Ahmed (editor) / Bazarchi, Ehsan (author) / Cyr, Alexandre (author) / Davaran, Ali (author) / Lamarche, Charles-Philippe (author)
Canadian Society of Civil Engineering Annual Conference ; 2023 ; Moncton, NB, Canada
Proceedings of the Canadian Society for Civil Engineering Annual Conference 2023, Volume 11 ; Chapter: 25 ; 313-329
2024-09-26
17 pages
Article/Chapter (Book)
Electronic Resource
English
Modular building structures , Gravity force resisting modules , Reinforced concrete shear walls , Intra-module connection , Inter-module connection Engineering , Building Construction and Design , Geoengineering, Foundations, Hydraulics , Transportation Technology and Traffic Engineering , Environment, general
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