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Seismic Response of Multistory Buildings
As discussed in Chapters 2 and 3, the seismic performance of a structure depends on its normalized strength, deformability, and damping. Normalized strength is the lateral strength of a structure divided by its weight. Due to its much higher weight, a multistory building generally has smaller normalized strength than a one-story building. Due to cumulative nature of story deformations, a multistory building is much more deformable than a one-story building. Therefore, the height of a building does not make it more vulnerable to seismic shaking. Through flexural yielding in beams at various levels, a multistory building can significantly enhance its deformability and damping. Flexural yielding should not be confined to a single story and it should occur before brittle failures. This chapter discusses the seismic response of multistory building frames.
Seismic Response of Multistory Buildings
As discussed in Chapters 2 and 3, the seismic performance of a structure depends on its normalized strength, deformability, and damping. Normalized strength is the lateral strength of a structure divided by its weight. Due to its much higher weight, a multistory building generally has smaller normalized strength than a one-story building. Due to cumulative nature of story deformations, a multistory building is much more deformable than a one-story building. Therefore, the height of a building does not make it more vulnerable to seismic shaking. Through flexural yielding in beams at various levels, a multistory building can significantly enhance its deformability and damping. Flexural yielding should not be confined to a single story and it should occur before brittle failures. This chapter discusses the seismic response of multistory building frames.
Seismic Response of Multistory Buildings
Malhotra, Praveen K. (author)
Seismic Analysis of Structures and Equipment ; Chapter: 4 ; 97-130
2020-11-25
34 pages
Article/Chapter (Book)
Electronic Resource
English
Moment frame , Multistory , Seismic , Earthquake , Normalized strength , Deformability , Damping , Ductility , Flexural yielding , P–Δ effect , Plastic yielding , Soft-story , Seismic toughness , Pushover curve , Capacity curve , Demand curve , Linear-static , Linear-dynamic , Nonlinear-static , Nonlinear-dynamic , Pushover Engineering , Geoengineering, Foundations, Hydraulics , Building Construction and Design , Geotechnical Engineering & Applied Earth Sciences , Quality Control, Reliability, Safety and Risk , Natural Hazards
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