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Analytical Fragility Curves for Pipe Rack Structure

  • Yasser S. SalemEmail author
  • P. E. Tiffany Yoo
  • Ghad M. Gad
  • Jin Sung Cho
Conference paper
Part of the Sustainable Civil Infrastructures book series (SUCI)

Abstract

The seismic performance of Pipe Rack structures which is a complex structure commonly found in large oil refineries is evaluated in this study. Analytical Fragility curves are developed to evaluate the performance of each pipe rack models at Life Safety damage state after an earthquake. The methodology that were used to develop the curves, are based on calculating axial deformation of the brace member and the plastic rotation of the moment frame using nonlinear time history analysis for different ground motions with different intensities and frequency contents. The fragility curves are developed based on the acceptance criteria for the brace member and the partially connection moment frame given from the FEMA 356. It was found that as the number of bay increased, the probability of the structure exceeding/reaching Life Safety performance level for the brace member significantly increased and decreased as the number of bay decreased. Similarly, as the number of stories increase, the chance of reaching LS increased, as decreasing the number of stories lowered the change of achieving LS for both moment frame and brace member. It was also found that changing the member size does not have a remarkable effect to their fragility values in Life Safety level of performance.

References

  1. ATC 40: Seismic Evaluation and Retrofit of Concrete Buildings ATC. Applied Technology Council 1996 1 and 2Google Scholar
  2. Erberik, M.A., Elnashai, S.A.: Seismic vulnerability of flat-slab structures. Technical Report DS-9 Project (Risk Assessment Modeling) Mid-America Earthquake Center, University of Illinois at Urbana-Champaign (2003)Google Scholar
  3. Federal Emergency Management Agency (FEMA): Hazus–MH 2.1: Technical Manual (2012)Google Scholar
  4. Karim, K.R., Yamazaki, F.: A simplified method of constructing fragility curves for highway bridges. Earthq. Eng. Struct. D. 32(10), 1603–1626 (2003)CrossRefGoogle Scholar
  5. Mander, J.B.: Fragility curve development for assessing the seismic vulnerability of highway bridges. Research Progress (1999)Google Scholar
  6. Maniyar, M.M., Khare, R.K., Dhabal, R.P.: Probabilistic seismic performance evaluation of nonseismic, RC frame buildings. Struct. Eng. Mech. 33(6), 725–745 (2009)CrossRefGoogle Scholar
  7. PEER Strong Motion Database. http://peer.berkeley.edu/smcat/
  8. SAP2000: Integrated Structural Analysis & Design Software. Vers. 17. Computer and Structures, Berkeley, CA (1997). Computer SoftwareGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Yasser S. Salem
    • 1
    Email author
  • P. E. Tiffany Yoo
    • 1
  • Ghad M. Gad
    • 1
  • Jin Sung Cho
    • 1
  1. 1.Civil Engineering DepartmentCal Poly PomonaPomonaUSA

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