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原文传递 Evaluation of Simplified and State-of-the-Art Analysis Procedures for Steel Frame Buildings Equipped with Supplemental Damping Devices Based on E-Defense Full-Scale Shake Table Tests
题名: Evaluation of Simplified and State-of-the-Art Analysis Procedures for Steel Frame Buildings Equipped with Supplemental Damping Devices Based on E-Defense Full-Scale Shake Table Tests
正文语种: 英文
作者: Sarven Akcelyan; Dimitrios G. Lignos, A.M.ASCE; Tsuyoshi Hikino;Masayoshi Nakashima, M.ASCE
作者单位: McGill Univ;Nippon Steel and Sumikin Engineering Co. Ltd;Kyoto Univ
关键词: Nonlinear viscous dampers; Buckling-restrained braces; Simplified assessment methods; Supplemental damping; Performance-spectra; Full-scale shake table tests; Nonlinear response history analysis; Seismic effects.
摘要: This paper summarizes a number of key findings that affect the use of linear and nonlinear analysis procedures for the seismic evaluation of steel frame buildings with supplemental damping devices and in particular, buckling-restrained braces (BRBs) and non linear viscous dampers (NVDs). The assessment is based on a comparison of various en gineering dema nd parameters (EDPs) with experime ntal data obtained from a series of full-scale shaking table tests of a five-story steel building equipped with BRBs and NVDs. It is shown that: (1) there is no clear advantage between three-dimensional (3D) and two-dimensional (2D) analyses in the prediction of the dynamic behavior of regular plan view steel frame buildings regardless of the damper type; (2) in corporating the brace and nonlinear viscous damper axial flexibility in the analytical model of the test structure with NVDs significantly improves the overall numerical predictions; and (3) the current effective damping ratio recommended by ASCE 41-13 as part of linear static procedures for the evaluation of frame buildings with BRBs or NVDs may not be conservative enough. A new performance-based design tool called performance-spectra (P-Spectra) is able to reliably predict the EDPs of interest. The P-Spectra tool is also able to validate the efficiency of various damper solutions on the dynamic performance of the test structure. It is demonstrated that P-Spectra can be employed to predict estimates of potential residual deformations that traditional linear and nonlinear static procedures cannot. DOI: 10.1061/(ASCE)ST. 1943-541X.0001474. © 2016 American Society of Civil Engineers.
出版日期: 2016.06
出版年: 2016
期刊名称: Journal of Structural Engineering
卷: Vol.142
期: NO.06
页码: 04016024
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