In-plane seismic performance of different infill wall systems in ductile reinforced concrete frames


Demirel I. O., BİNİCİ B., YAKUT A.

Bulletin of Earthquake Engineering, vol.21, no.7, pp.3433-3459, 2023 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 21 Issue: 7
  • Publication Date: 2023
  • Doi Number: 10.1007/s10518-023-01663-5
  • Journal Name: Bulletin of Earthquake Engineering
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aquatic Science & Fisheries Abstracts (ASFA), Compendex, Geobase, INSPEC, Civil Engineering Abstracts
  • Page Numbers: pp.3433-3459
  • Keywords: RC frame, Infill wall, Hysteretic response, Seismic retrofit, Innovative infill systems, Performance limit states, MASONRY INFILLS, RC FRAMES, SLIDING JOINTS, BUILDINGS, BEHAVIOR, DAMAGE, CONSTRUCTION, ELEMENTS, TESTS
  • Middle East Technical University Affiliated: Yes

Abstract

The seismic response of infilled frames draws considerable interest in the earthquake engineering community for the last decades. Whilst the early studies were concerned with added lateral stiffness and strength, recent studies focused primarily on deformability and performance improvement. In this study, an experimental campaign was conducted to investigate the seismic performance of ductile reinforced concrete (RC) frames infilled with hollow clay bricks and autoclaved aerated concrete blocks. The effectiveness of different infill wall construction techniques, such as the use of isolation joints, mesh overlays, and horizontal sliding joints were evaluated by carrying out cyclic tests on seven half-scale RC frame specimens. Strength and stiffness degradation, energy dissipation and damage propagation of tested infill wall systems obtained by deducing bare frame (BF) response from the infilled frame (IF) were compared. Damage limit states in terms of story drift were proposed based on specific points located on the normalized experimental load-displacement backbone of infill walls. A detailed description of physical damage corresponding to each damage state was reported for visual quantification of the infill wall performance.