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Author:

Li, Shuang (Li, Shuang.) | Shan, Sidi (Shan, Sidi.) | Zhang, Haiyu (Zhang, Haiyu.) | Li, Yi (Li, Yi.)

Indexed by:

SSCI Scopus SCIE

Abstract:

A structural progressive collapse is usually a local failure, in which the damage is concentrated at beams that bridge the removal column and the column itself. In many cases, retrofitting the damaged structure is more economical and more sustainable than reconstructing the entire structure. A progressive collapse test of a 1/3 scale, four-bay by two-story reinforced concrete (RC) frame was conducted, after which the structure was retrofitted with carbon fiber reinforced polymer (CFRP) wraps and retested. The center column in the first story was removed and the frame was pushed down quasistatically under displacement control to investigate the progressive collapse performances of the retrofitted RC frame. The test results were represented systematically at different areas in terms of the resistance forces, crack developments, and local and global failure modes. Numerical models were built to verify the test frame before and after the retrofitting. A design method was proposed to retrofit an RC frame using CFRP wraps after a progressive collapse. The test frame was redesigned to improve the retrofitting and used as an example to demonstrate the rationality of the proposed retrofit design method. The results indicated that the proposed retrofitting technology rapidly restored the frame structure to its original capacity before the progressive collapse occurred, whilst consistently satisfying the priorities of being economical and sustainable.

Keyword:

CFRP wraps RC frame rapid retrofit sustainability progressive collapse

Author Community:

  • [ 1 ] [Li, Shuang]Harbin Inst Technol, Key Lab Struct Dynam Behav & Control, Key Lab Smart Prevent & Mitigat Civil Engn Disast, Minist Ind & Informat Technol,Minist Educ, Harbin 150090, Heilongjiang, Peoples R China
  • [ 2 ] [Zhang, Haiyu]Harbin Inst Technol, Key Lab Struct Dynam Behav & Control, Key Lab Smart Prevent & Mitigat Civil Engn Disast, Minist Ind & Informat Technol,Minist Educ, Harbin 150090, Heilongjiang, Peoples R China
  • [ 3 ] [Shan, Sidi]Northeastern Univ, Sch Resources & Civil Engn, Shenyang 110819, Liaoning, Peoples R China
  • [ 4 ] [Li, Yi]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China

Reprint Author's Address:

  • [Shan, Sidi]Northeastern Univ, Sch Resources & Civil Engn, Shenyang 110819, Liaoning, Peoples R China

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Related Keywords:

Source :

SUSTAINABILITY

Year: 2019

Issue: 15

Volume: 11

3 . 9 0 0

JCR@2022

ESI Discipline: ENVIRONMENT/ECOLOGY;

ESI HC Threshold:167

JCR Journal Grade:2

Cited Count:

WoS CC Cited Count: 9

SCOPUS Cited Count: 11

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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