Structural Engineering and Mechanics

  • 제57권4호
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  • Pages.641-656
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  • 2016
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Experimental study of masonry infill reinforced concrete frames with and without corner openings

  • 투고 : 2015.04.03
  • 심사 : 2016.01.11
  • 발행 : 2016.02.25
⟨ 이전 논문 다음 논문 ⟩

초록

Reinforced concrete frame buildings with masonry infill walls are one of the most popular structural systems in the world. In most cases, the effects of masonry infill walls are not considered in structural models. The results of earthquakes show that infill walls have a significant effect on the seismic response of buildings. In some cases, the buildings collapsed as a result of the formation of a soft story. This study developed a simple method, called corner opening, by replacing the corner of infill walls with a very flexible material to enhance the structural behavior of walls. To evaluate the proposed method a series of experiments were conducted on masonry infill wall and reinforced concrete frames with and without corner openings. Two 1:4 scale masonry infill walls with and without corner openings were tested under diagonal tension or shear strength and two RC frames with full infill walls and with corner opening infill walls were tested under monotonic horizontal loading up to a drift level of 2.5%. The experimental results revealed that the proposed method reduced the strength of infill wall specimens but considerably enhanced the ductility of infill wall specimens in the diagonal tension test. Moreover, the corner opening in infill walls prevented the slid shear failure of the infill wall in RC frames with infill walls.

키워드

참고문헌

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피인용 문헌

  1. Fragility functions for masonry infill walls with in-plane loading vol.46, pp.15, 2017, https://doi.org/10.1002/eqe.2934
  2. Influence of interface on the behavior of infilled frame subjected to lateral load using linear analysis vol.5, pp.2, 2016, https://doi.org/10.12989/csm.2016.5.2.127
  3. Empirical drift-fragility functions and loss estimation for infills in reinforced concrete frames under seismic loading pp.1573-1456, 2019, https://doi.org/10.1007/s10518-018-0501-y
  4. Seismic behavior of steel frames with replaceable reinforced concrete wall panels vol.22, pp.5, 2016, https://doi.org/10.12989/scs.2016.22.5.1055
  5. In-plane response of masonry infilled RC framed structures: A probabilistic macromodeling approach vol.68, pp.4, 2016, https://doi.org/10.12989/sem.2018.68.4.423
  6. Effect of masonry infilled panels on the seismic performance of a R/C frames vol.16, pp.3, 2016, https://doi.org/10.12989/eas.2019.16.3.329
  7. Classification of in-plane failure modes for reinforced concrete frames with infills using machine learning vol.25, pp.None, 2016, https://doi.org/10.1016/j.jobe.2019.100767
  8. Recent Findings and Open Issues concerning the Seismic Behaviour of Masonry Infill Walls in RC Buildings vol.2020, pp.None, 2016, https://doi.org/10.1155/2020/9261716
  9. Development and Utilization of a Database of Infilled Frame Experiments for Numerical Modeling vol.146, pp.6, 2020, https://doi.org/10.1061/(asce)st.1943-541x.0002608
  10. Influence of openings of infill wall on seismic vulnerability of existing RC structures vol.75, pp.2, 2016, https://doi.org/10.12989/sem.2020.75.2.211
  11. A database of test results from steel and reinforced concrete infilled frame experiments vol.36, pp.3, 2020, https://doi.org/10.1177/8755293019899950
  12. Seismic collapse risk of RC frames with irregular distributed masonry infills vol.76, pp.3, 2020, https://doi.org/10.12989/sem.2020.76.3.421