Response spectrum method for building structures with general nonviscous damping models. (June 2022)

• Record Type: Journal Article
• Authors: Xiao, Shiying; Wang, Mengfu
• Is Part Of: Structures. Volume 40(2022)
• Page Start: 571
• Page End: 580
• Publication Date: 2022-06
• Subjects: Seismic response -- Non-viscously damped building structures -- General solution in real form -- Response spectrum analysis method -- Modal combination rule; Structural engineering -- Periodicals; 624.1
• DOI: 10.1016/j.istruc.2022.04.035
• Languages: English
• ISSNs: 2352-0124

Abstract

Abstract: Based on the free vibration solution of non-viscously damped linear systems obtained by Laplace transform, and using Duhamel's principle for dynamic analysis, a delicate and general solution of non-viscously damped linear multi-degree-of-freedom (MDOF) systems under seismic load, completely in real form, is presented. Response spectrum method and the corresponding modal combination rules are therewith extended to deal with general non-viscously damped structures. Finally, the accuracy and efficiency of proposed methods are discussed and compared with other developed methods by two numerical examples.