The critical parameters that influence the nonlinear seismic response of asymmetric-plan buildings are identified by evaluating the effects of different asymmetries that may characterize the structure of a building as well as exploring the influence of the ground motion features. First, the main findings reported in the literature on both the linear and nonlinear dynamic response of asymmetric-plan buildings are presented. The common findings and the conflicting conclusions reached in different investigations are pointed out. Then, the results of comprehensive nonlinear dynamic analyses performed for evaluating the seismic response of systems characterized by different strength and stiffness configurations, representative of a large class of asymmetric-plan buildings, are reported. Findings from the study indicate that the building response changes when moving from the linear to the nonlinear range, so that the seismic behavior of asymmetric-plan buildings, apart from the source of asymmetry, can be always classified as irregular. Additionally, it was observed that as the seismic demands cause amplification of system nonlinearity with increasing earthquake intensity, the maximum displacement demand in the different resisting elements tends to be reached with the same deformed configuration of the system. The resultant of the seismic forces producing such a maximum demand is located at the center of resistance and corresponds to the collapse mechanism of the system that provides the maximum lateral strength in the exciting direction of the seismic action. Copyright © 2008 John Wiley & Sons, Ltd.

Seismic behavior of single-story asymmetric-plan buildings under uniaxial excitation / Lucchini, Andrea; Monti, Giorgio; Sashi, Kunnath. - In: EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS. - ISSN 0098-8847. - STAMPA. - 38:9(2009), pp. 1053-1070. [10.1002/eqe.881]

Seismic behavior of single-story asymmetric-plan buildings under uniaxial excitation

LUCCHINI, Andrea;MONTI, Giorgio;
2009

Abstract

The critical parameters that influence the nonlinear seismic response of asymmetric-plan buildings are identified by evaluating the effects of different asymmetries that may characterize the structure of a building as well as exploring the influence of the ground motion features. First, the main findings reported in the literature on both the linear and nonlinear dynamic response of asymmetric-plan buildings are presented. The common findings and the conflicting conclusions reached in different investigations are pointed out. Then, the results of comprehensive nonlinear dynamic analyses performed for evaluating the seismic response of systems characterized by different strength and stiffness configurations, representative of a large class of asymmetric-plan buildings, are reported. Findings from the study indicate that the building response changes when moving from the linear to the nonlinear range, so that the seismic behavior of asymmetric-plan buildings, apart from the source of asymmetry, can be always classified as irregular. Additionally, it was observed that as the seismic demands cause amplification of system nonlinearity with increasing earthquake intensity, the maximum displacement demand in the different resisting elements tends to be reached with the same deformed configuration of the system. The resultant of the seismic forces producing such a maximum demand is located at the center of resistance and corresponds to the collapse mechanism of the system that provides the maximum lateral strength in the exciting direction of the seismic action. Copyright © 2008 John Wiley & Sons, Ltd.
2009
asymmetric-plan building; nonlinear seismic response; single-story frame; torsion; uniaxial excitation
01 Pubblicazione su rivista::01a Articolo in rivista
Seismic behavior of single-story asymmetric-plan buildings under uniaxial excitation / Lucchini, Andrea; Monti, Giorgio; Sashi, Kunnath. - In: EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS. - ISSN 0098-8847. - STAMPA. - 38:9(2009), pp. 1053-1070. [10.1002/eqe.881]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/44872
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