Effects of Seismic Damage and Retrofitting on a Full-scale Substandard RC Building-Ambient Vibration Tests

Inci P., Goksu C., TÖRE E., İlki A.

JOURNAL OF EARTHQUAKE ENGINEERING, vol.26, no.11, pp.5747-5774, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 26 Issue: 11
  • Publication Date: 2022
  • Doi Number: 10.1080/13632469.2021.1887009
  • Journal Name: JOURNAL OF EARTHQUAKE ENGINEERING
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.5747-5774
  • Keywords: Fiber-reinforced polymers, reinforced concrete, retrofitting, seismic, vibration test
  • Istanbul Technical University Affiliated: Yes

Abstract

This study investigates the effects of seismic damages and retrofitting on dynamic characteristics of substandard reinforced concrete buildings. Two identical 3-story buildings were constructed, one of which was retrofitted through application of carbon fiber-reinforced polymer jacketing on its columns. Ambient vibration tests were conducted at undamaged states, and after formation of damages of different extents. Test results showed that even limited reductions in vibration frequencies could indicate serious problems about structural safety. Although the vibration frequencies of both buildings were observed to be decreased with the increasing level of damage, decrease of those of the retrofitted building was lower.