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Author:

Li, Yan-Wen (Li, Yan-Wen.) | Wang, Yuan-Zuo (Wang, Yuan-Zuo.) | Wang, Yan-Bo (Wang, Yan-Bo.)

Indexed by:

EI Scopus SCIE

Abstract:

The Energy Dissipative Rocking Column is a novel seismic mitigation device that could effectively mitigate maximum inter-storey drift and drift concentration of low-rise buildings under earthquakes. This study proposed a beam-through configuration for the connections between steel frames and Energy Dissipative Rocking Columns (EDRCs) to reduce the necessary workload in the application of EDRCs. The study commenced with a cyclic loading test on a substructure composed of the beam-through EDRC and frame beam-to-EDRC connections. Following the cyclic loading test, a simplified numerical model of the beam-through EDRC was built and validated against the test results. Finally, parametric studies were conducted to determine the seismic demand on the beam-to-EDRC connections. The results showed that the beam-through EDRCs have acceptable lateral resisting and energy dissipation capacity. The simplified numerical model could reasonably well predict the hysteretic behaviour of the specimens with and without the steel damper. The parametric study results, based on hundreds of nonlinear time history analyses, indicated that increasing connection stiffness in the range of 0 to 1.5 is most effective in mitigating both maximum drift and drift concentration. Moreover, the beam-through EDRC has very close effectiveness with the conventional column-through EDRC when the connection stiffness ratio is close to or larger than 4.

Keyword:

Steel frame Energy-dissipative rocking columns Seismic demand Experimental test Nonlinear time history analysis Beam-through

Author Community:

  • [ 1 ] [Li, Yan-Wen]Tongji Univ, Coll Civil Engn, Shanghai 200092, Peoples R China
  • [ 2 ] [Wang, Yan-Bo]Tongji Univ, Coll Civil Engn, Shanghai 200092, Peoples R China
  • [ 3 ] [Wang, Yuan-Zuo]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 4 ] [Li, Yan-Wen]Kyoto Univ, Dept Architecture & Architectural Engn, Kyoto, Japan

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Source :

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH

ISSN: 0143-974X

Year: 2021

Volume: 189

4 . 1 0 0

JCR@2022

ESI Discipline: ENGINEERING;

ESI HC Threshold:87

JCR Journal Grade:2

Cited Count:

WoS CC Cited Count: 11

SCOPUS Cited Count: 12

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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