DOI QR코드

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Seismic performance of gravity-load designed concrete frames infilled with low-strength masonry

  • Siddiqui, Umair A. (Department of Civil Engineering, Middle East Technical University) ;
  • Sucuoglu, Haluk (Department of Civil Engineering, Middle East Technical University) ;
  • Yakut, Ahmet (Department of Civil Engineering, Middle East Technical University)
  • 투고 : 2013.11.05
  • 심사 : 2014.07.07
  • 발행 : 2015.01.25

초록

This study compares the seismic performances of two reinforced concrete frame specimens tested by the pseudo-dynamic procedure. The pair of 3-storey, 3-bay frames specimens are constructed with typical characteristics of older construction which is lacking seismic design. One of the specimens is a bare frame while the other is infilled with low-strength autoclave aerated concrete (AAC) block masonry. The focus of this study is to investigate the influence of low strength masonry infill walls on the seismic response of older RC frames designed for gravity loads. It is found that the presence of weak infill walls considerably reduce deformations and damage in the upper stories while their influence at the critical ground story is not all that positive. Infill walls tend to localize damage at the critical story due to a peculiar frame-infill interaction, and impose larger internal force and deformation demands on the columns and beams bounding the infills. Therefore the general belief in earthquake engineering that infills develop a second line of defence against lateral forces in seismically deficient frames is nullified in case of low-strength infill walls in the presented experimental research.

키워드

과제정보

연구 과제 주관 기관 : Turkish Scientific and Technological Research Council (TUBITAK)

참고문헌

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피인용 문헌

  1. Effect of Infills on Seismic Performance of Reinforced Concrete Frame structures—A Full-Scale Experimental Study 2017, https://doi.org/10.1080/13632469.2017.1387194
  2. Seismic performance of RC buildings subjected to past earthquakes in Turkey vol.11, pp.3, 2016, https://doi.org/10.12989/eas.2016.11.3.483
  3. Experimental Investigation of Autoclaved Aerated Concrete Masonry vol.31, pp.7, 2015, https://doi.org/10.1061/(asce)mt.1943-5533.0002762
  4. Seismic behavior and improvement of autoclaved aerated concrete infill walls vol.193, pp.None, 2015, https://doi.org/10.1016/j.engstruct.2019.05.032
  5. Evaluation of Structural Properties of Existing Turkish RC Building Stock vol.43, pp.3, 2015, https://doi.org/10.1007/s40996-018-0207-z
  6. Sociotechnical Evaluation of the Soft Story Problem in Reinforced Concrete Frame Buildings in Nepal vol.35, pp.4, 2021, https://doi.org/10.1061/(asce)cf.1943-5509.0001582