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Seismic resilience of building inventory towards resilient cities
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作者 Juan Gustavo Salado Castillo Michel Bruneau negar elhami-khorasani 《Resilient Cities and Structures》 2022年第1期1-12,共12页
Resilience of a community after an extreme event depends on the resilience of different infrastructure including buildings.There is no well-established approach to characterize and integrate building resilience for co... Resilience of a community after an extreme event depends on the resilience of different infrastructure including buildings.There is no well-established approach to characterize and integrate building resilience for community-level applications.This paper investigates how different potential functionality measures can be used to quantify building resilience indexes,and how the results could be aggregated for a set of buildings to provide an indi-cator for the resilience of an entire community.The quantification of building resilience is based on different functionality measures including repair cost,occupancy level,and asset value.An archetype city block with four different buildings is defined.The individual results for each building are combined using a weight-based ap-proach to quantify the resilience index for the city block.The study then considers small-scale communities with different number of buildings to investigate the influence of contractor availability and collapse probability on the resilience indexes for the set of buildings.Both parameters are shown to be important when quantifying the resilience index.It is also demonstrated that the overall resilience of a community is directly influenced by the resilience of individual buildings.The findings presented here are useful both from the perspective of quantifying the resilience of a community on the basis of its building inventory,as well as for possible inclusion into a holistic framework that aims to quantify community resilience. 展开更多
关键词 Seismic resilience Building resilience index Community Repair cost Occupancy level Asset value
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Behavior and modeling of tessellated shear walls in a structural frame system
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作者 Mohammad Syed Pinar Okumus +2 位作者 negar elhami-khorasani Brandon E.Ross Michael Carlos Barrios Kleiss 《Resilient Cities and Structures》 2023年第1期152-161,共10页
This paper studies the behavior of a reinforced concrete(RC)structural frame employing a tessellated structuralarchitectural(TeSA)shear wall as the lateral-load resisting element.TeSA walls are made of interlocking mo... This paper studies the behavior of a reinforced concrete(RC)structural frame employing a tessellated structuralarchitectural(TeSA)shear wall as the lateral-load resisting element.TeSA walls are made of interlocking modules(tiles)that provide easier repairability and replaceability.A nonlinearfinite element model of a TeSA wall with tiles interlocking in one direction(1-D interlocking)is validated using test data.An RC frame from a building is modeled with a 1-D interlocking TeSA shear wall.The effects of varying rigidity of the wall-frame connections(rigid,hinged,slotted)on the lateral strength of the system and the axial load demands of the gravity-load resisting systems are evaluated.Finally,the effect of connection details on the damage of the TeSA wall is also studied.The study shows that the lateral strength of the system is the highest with a rigid connection between the wall and the system,followed by the system with hinged connections.Slotted connections,which provided no vertical coupling between the wall and the frame result in the lowest lateral strength.TeSA wall experienced“slight damage”up to a drift ratio of 2%.The system with rigid connections between the wall and the frame experienced the most damage,followed by system with hinged and slotted connections. 展开更多
关键词 Modular shear wall Frame-wall connections Finite-element modeling Resiliency
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