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Analytical Studies on Seismic Performance of Multi-Story Coupled Piping System in a Low-Rise Building

  • Jung, WooYoung (Department of Civil Engineering, GangNeung-WonJu National University) ;
  • Ju, BuSeog (Department of Civil Engineering, North Carolina State University)
  • Received : 2013.03.04
  • Accepted : 2013.06.11
  • Published : 2013.07.01

Abstract

The construction costs for nonstructural systems such as mechanical/electrical equipment, ceiling system, and piping system occupy a significant proportion of the total cost. These nonstructural systems can also cause considerable economic losses and loss of life during and after an earthquake. Therefore, reduction of seismic risk of nonstructural components has been emerging as a key aspect of research in recent year. The primary objective of this study was to evaluate the seismic performance of a single-story and multi-story piping system installed in low-rise building and to identify the seismic vulnerability of the current piping systems. The seismic performance evaluation of the piping systems was conducted with 5 different earthquakes to account for the ground motion uncertainty and the preliminary results demonstrated that the maximum displacements of each floor in the multi-story piping system increased linearly with increasing floor level in the building system. This study revealed that the current design piping systems are significantly sensitive to the effect of floor height, which stress the necessity to improve the seismic performance of the current piping systems by, for example, strengthening with seismic sway bracing using transverse/longitudinal bracing cables or hangers.

Keywords

References

  1. Antaki G, Guzy D. Seismic Testing of Grooved and Threaded Fire Protection Joints and Correlation with NFPA Seismic Design Provisions. ASME 1998, Seismic Engineering- 1998;364:69-75.
  2. Ayres JM, Phillips RJ. Water Damage in Hospital Resulting from the Northridge Earthquake. ASHRAE Transactions Part 1B. 1998;104:1286-1296.
  3. Korea Meteorological Administration (KMA). 2012 Geological Distribution of Earthquakes [Internet]. 2013.Available from: http://web.kma.go.kr/notify/press/kma_list.jsp?bid=press&mode=view&num=1192542.
  4. Kircher CA. It Makes Dollars and Sense to Improve Nonstructural System Performance. Proceedings of Seminar on Seismic Design, Performance, and Retrofit of Nonstructural Components in Critical Facilities. ATC-29-2. Newport Beach, California. c2003.
  5. Lee D. A Study on the Seismic Design for Water Extinguishing Piping Systems. Journal of Korea Institute of Fire Science and Engineering. 2008;22(1):10-15.
  6. Maragakis E, Itani A, Goodwin E. Seismic Behavior of Welded Hospital Piping Systems. Proceedings of Seminar on Seismic Design, Performance, and Retrofit of Nonstructural Components in Critical Facilities. ATC-29-2. Newport Beach. California. c2003.
  7. Mazzoni S and et al. OpenSees Command Language Manual. Open System for Earthquake Engineering Simulation (OpenSees), [Internet]. 2013.Available from: http://opensees. berkeley.edu/.
  8. NFPA-13. Standard for the installation of Sprinkler System, National Fire Protection Association, MA, 2007 Edition. c2007.
  9. Parulekar YM and et al. Seismic Response Evaluation of Safety Related Nuclear Structure with Yielding Dampers using Linearization Techniques. 20th International Conference on Structural Mechanics in Reactor Technology (SMiRT 20). Espoo, Finland, August 9-14. c2009.
  10. PEER-NRG NGA. Pacific Earthquake Engineering Research Center: NGA Database. [Internet]. 2009.Available from: http://peer.berkeley.edu/nga/.
  11. Wood RL, Hutchinson TC, Hoehler MS, Cyclic Load and Crack Protocols for Anchored Nonstructural Components and Systems. Structural Systems Research Project Report Series, SSRP 09/12. Department of Structural Engineering, University of California, San Diego, La Jolla, California. c2009.
  12. Wasilewski RJ. Seismic Restraints for piping System. ASHRAE Transactions Part 1B. 1998;104:1273-1285.