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作者:

Lin, Kaiqi (Lin, Kaiqi.) | Lu, Xinzheng (Lu, Xinzheng.) | Li, Yi (Li, Yi.) | Guan, Hong (Guan, Hong.)

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EI Scopus SCIE

摘要:

Reinforced concrete (RC) frames are one of the most commonly used structural systems worldwide. Earthquake actions and progressive collapse caused by accidental local damage are two critical hazards increasing collapse risks of multi-story RC frames. A significant difference is well recognized between the structural seismic design and progressive collapse design. Whilst the seismic design focuses on resisting the lateral forces due to earthquake, the progressive collapse design deals with resisting the unbalanced vertical load induced by a localized failure. Existing research has revealed that considering the two different designs individually for a structure may lead to an undesirable overall structural performance and unnecessary waste of construction materials. In this study, a novel Multi-Hazard Resistant, Prefabricated Concrete (MHRPC) frame system is proposed to satisfy the demands of both structural seismic and progressive collapse designs. Cyclic and progressive collapse tests are conducted to validate the performance of this newly proposed structural system. The mechanisms of the MHRPC frame system under both cyclic loads and a middle column removal scenario are analyzed based on the experimental results and numerical simulations using OpenSees. The results indicate that the proposed fame system exhibits such characteristics as large rotation, low damage, self-centering, and ease of repair. The system is also proven to be able to meet the multi-hazard design requirements of RC frames against both earthquake actions and progressive collapse.

关键词:

Prefabricated concrete frame Multi-hazard Earthquake Experimental study Resilient Progressive collapse

作者机构:

  • [ 1 ] [Lin, Kaiqi]Tsinghua Univ, Beijing Engn Res Ctr Steel & Concrete Composite S, Beijing, Peoples R China
  • [ 2 ] [Lu, Xinzheng]Tsinghua Univ, Minist Educ, Key Lab Civil Engn Safety & Durabil, Beijing, Peoples R China
  • [ 3 ] [Li, Yi]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing, Peoples R China
  • [ 4 ] [Guan, Hong]Griffith Univ, Griffith Sch Engn, Gold Coast Campus, Southport, Qld 4222, Australia

通讯作者信息:

  • [Lu, Xinzheng]Tsinghua Univ, Minist Educ, Key Lab Civil Engn Safety & Durabil, Beijing, Peoples R China

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来源 :

SOIL DYNAMICS AND EARTHQUAKE ENGINEERING

ISSN: 0267-7261

年份: 2019

卷: 119

页码: 390-407

4 . 0 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:136

JCR分区:2

被引次数:

WoS核心集被引频次: 49

SCOPUS被引频次: 66

ESI高被引论文在榜: 0 展开所有

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