Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Effect of Physical Shape on Seismic Performance of URM Structures

비보강 조적식 구조의 형상에 따른 내진성능 평가 해석

  • Park, Joonam (Department of Civil and Environmental Engineering, Wonkwang University)
  • 박주남 (원광대학교 토목환경공학과)
  • Received : 2015.11.22
  • Accepted : 2016.04.18
  • Published : 2016.09.01
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Abstract

Unreinforced masonry (URM) buildings are known to be highly vulnerable to seismic loadings. Although significant physical variation may exist for URM buildings that fall into a same structural category, a single set of fragility curves is typically used as a representation of the seismic vulnerability of the URM structures. This study investigates the effect of physical variation of URM structures on their seismic performance level. Variables that describe the physical variation of the structure are defined based on the inventory analysis. Seismic behavior of the structures is then monitored by changing the variables to investigate the effect of each variable. The analysis results show that among the variables considered the seismic performance of URM building depends on the variation of the width, the aspect ratio, and the number of story. The need for further research on the modeling of the connections between the walls and diaphragms and the torsional effect is also addressed.

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References

  1. NIBS - National Institute of Building Science. HAZUS-MH MR3 Multi-Hazard Loss Estimation Methodology: Earthquake Model, Technical Manual, Washington DC; c2003.
  2. Park J, Towashiraporn P. Rapid seismic damage assessment of railway bridges using the response-surface statistical model. Structural Safety. 2014;47(2):1-12. https://doi.org/10.1016/j.strusafe.2013.10.001
  3. Seo J, Linzell DG. Use of response surface metamodels to generate systems level fragilities for existing curved steel bridges. Engineering Structures. 2013;52:642-653. https://doi.org/10.1016/j.engstruct.2013.03.023
  4. French S, Olshansky R. Inventory of Essential Facilities in Mid-America. Mid-America Earthquake Center Project SE-1 Final Report. c2000.
  5. Park J, Towashiraporn P, Craig JI, Goodno BJ. Seismic fragility analysis of low-rise unreinforced masonry structures. Engineering Structures. 2009;31(1):125-137. https://doi.org/10.1016/j.engstruct.2008.07.021
  6. ASCE, FEMA 356. Prestandard and commentary for the seismic rehabilitation of buildings. Publication No. 356. Federal Emergency Management Agency, Washington DC; c2000.
  7. Craig JI, Goodno BJ, Towashiraporn P, Park J. Response modification applications for essential facilities, Mid-America Earthquake Center Project ST-4 Final Report, 2002.
  8. Federal Emergency Management Agency - FEMA. Prestandard and Commentary for the Seismic Rehabilitation of Buildings, Report 356. Washington, DC; c2000.
  9. ABAQUS. ABAQUS documentation, Dassault Systemes, Provindence, RI. USA; c2011.
  10. Wen YK, Wu CL. Uniform hazard ground motions for Mid-America cities. Earthquake Spectra. 2001; 17(2): 359-384. https://doi.org/10.1193/1.1586179
  11. Prakash V, Powell GH, Campbell S. DRAIN-2DX base program description and user guide. Ver. 1.10. Department of Civil Engineering, University of California, Berkeley, CA; c1993.