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Author:

Bai, Zheng-Xian (Bai, Zheng-Xian.) | Shen, Cun-Jie (Shen, Cun-Jie.) | Jiang, Zi-Qin (Jiang, Zi-Qin.) | Cheng, Kui-Kui (Cheng, Kui-Kui.) | Wang, Han-Wen (Wang, Han-Wen.)

Indexed by:

EI Scopus SCIE

Abstract:

Based on the ideas of damage control and energy dissipation by sliding, this paper puts forward an earthquake-resilient prefabricated steel frame with two open-web steel channel beams (OWSCBs). To study its seismic performance and post-earthquake repair performance, the low frequency cyclic loading tests and low cyclic fatigue tests were carried out on five specimens, and several seismic behavior indicators such as the hysteretic curve, the slip curve, the strain analysis curve and the skeleton curve of frames were obtained. The influence of the thickness of the flange cover plate (FCP), the number of connecting bolts in the FCP and the residual deformation on seismic performance of prefabricated steel frames before and after restoration were mainly investigated. The results show that there arc two main failure modes of the specimen, one is FCP friction sliding and the other is local buckling deformation of FCP dog-bone weakened section, while the main components such as beams and columns are still in the elastic stage. The repaired specimens have the same experimental phenomena and seismic performance as the initial specimen, which indicates that the functional restoration of prefabricated steel frame structures can be realized by repairing beam-column joint connecting devices. The repair process of the specimen with residual story drift went well, and this specimen still showed good mechanical and seismic performance after repaired. The overall bearing capability of the specimens decreases obviously with the thickness of the FCP decreasing. The decrease in the number of the connecting bolts in the FCP will reduce the critical sliding load of the FCP, which will lead to the slippage of the FCP in advance and reduce the overall bearing capability of the specimens. (C) 2020 Elsevier Ltd. All rights reserved.

Keyword:

Post-earthquake resilience performance Open-web steel channel beams Steel frames Hysteretic behavior Prefabricated steel structure Earthquake-resilient

Author Community:

  • [ 1 ] [Bai, Zheng-Xian]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 2 ] [Shen, Cun-Jie]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 3 ] [Jiang, Zi-Qin]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 4 ] [Cheng, Kui-Kui]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 5 ] [Wang, Han-Wen]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 6 ] [Jiang, Zi-Qin]Beijing Adv Innovat Ctr Future Urban Design, Beijing 100044, Peoples R China

Reprint Author's Address:

  • [Jiang, Zi-Qin]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China

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Source :

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH

ISSN: 0143-974X

Year: 2021

Volume: 177

4 . 1 0 0

JCR@2022

ESI Discipline: ENGINEERING;

ESI HC Threshold:87

JCR Journal Grade:2

Cited Count:

WoS CC Cited Count: 7

SCOPUS Cited Count: 12

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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