Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Case Study of Seismic Evaluation of Low-Rise Masonry Buildings

저층 조적건물의 내진성능평가 사례 연구

  • 엄태성 (단국대학교 건축학부) ;
  • 김찬호 (단국대학교 건축학부) ;
  • 이승제 (단국대학교 건축학부) ;
  • 김진우 (한국건설생활환경연구원 내진센터)
  • Received : 2021.07.27
  • Accepted : 2021.10.15
  • Published : 2022.01.01
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Abstract

In this study, the seismic performance of a two-story unreinforced masonry (URM) building was assessed following the linear and nonlinear static procedures specified in the seismic evaluation guideline of existing buildings. First, the provisions to assess failure modes and shear strengths of URM walls and wall piers were reviewed. Then, a two-story URM building was assessed by the linear static procedure using m-factors. The results showed that the walls and wall piers with aspect ratios he // (i.e., effective height-to-length ratio) > 1.5 were unsafe due to rocking or toe crushing, whereas the walls with he // ≤ 1.5 and governed by bed-joint sliding mainly were safe. Axial stresses and shear forces acted upon individual masonry walls, and wall piers differed depending on whether the openings were modeled. The masonry building was reevaluated according to the nonlinear static procedure for a more refined assessment. Based on the linear and nonlinear assessment results, considerations of seismic evaluation for low-rise masonry buildings were given with a focus on the effects of openings.

Keywords

Acknowledgement

이 연구는 행전안전부의 연구비지원(2020-MOIS32-029)에 의해 수행되었음.

References

  1. Korea Infrastructure Safety Corporation. Guide Lines for Seismic Performance Evaluation for Existing Buildings. c2013.
  2. American Society of Civil Engineers. ASCE 41-13 Seismic Evaluation and Retrofit of Existing Buildings. c2013.
  3. Kim TW, Min CG, Lee HM. Seismic Performance Evaluation of Unreinforced Masonry Buildings By Using a Three-Step Procedure. EESK J. Earthquake Eng. 2011 Jun;15(3):57-64.
  4. Moon KL. Seismic Strenthening of Low-Rise Unreinforced Masonry Structures with Flexible Diaphragms. Ph.D. Dissertation. Georgia Institute of Technology. Atlanta. 2004.
  5. Moon FL, Yi T, Leon RT, Kahn LF. Testing of a Full-Scale Unreinforced Masonry Building Following Seismic Strengthening. Journal of Structural Engineering. 2007 Sep;133(9):1215-1226. https://doi.org/10.1061/(asce)0733-9445(2007)133:9(1215)
  6. Kang SH, Hong SG, Lee SJ. Rocking Capacity of Unreinforced Masonry Walls. Journal of Architectural Institute of Korea-Structural. 2010 Dec;26(12):45-56.
  7. Yi WH, Lee JH, Oh SH, Yang WJ, Kang DE. A Study of Evaluation of Shear Capacity of Unreinforced Masonry Wall. Journal of Architectural Institute of Korea-Structural. 2005 Oct;21(10):3-10.
  8. Park J. Effect of Physical Shape on Seismic Performance of URM Structures. EESK J. Earthquake Eng. 2016 Sep;20(5):277-283.
  9. Kim SC, Oh YH. Seismic Assessment of a Low-Rise Masonry Building with Non-Rigid Diaphragms. Journal of Architectural Institute of Korea-Structural. 2003 Apr;19(4):63-70.
  10. American Society of Civil Engineers. ASCE 41-17 Seismic Evaluation and Retrofit of Existing Buildings. c2017.
  11. Seol YJ, Park JH. Seismic Performance Evaluation of Unreinforced Masonry Buildings Retrofitted by Strengthening External Walls. EESK J. Earthquake Eng. 2020 Mar;24(2):77-86.
  12. Turnsek V, Sheppard P. The Shear and Flexural Resistance of Masonry Walls. Proc. Int. Research Conf. on Earthquake Engineering. Skopje, Yugoslavia. c1980.
  13. Computer and Structures Inc. Perform-3D: Nonlinear Analysis and Performance Assessment for 3D Structures - User Guide Ver. 5. Berkeley, CA. c2013.