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Research Papers: Seismic Engineering

Seismic Assessment of Petrochemical Piping Systems Using a Performance-Based Approach

[+] Author and Article Information
Oreste S. Bursi

Department of Civil, Environment, and
Mechanical Engineering,
University of Trento,
Via Mesiano 77,
Trento 38123, Italy
e-mail: Oreste.bursi@unitn.it

Fabrizio Paolacci

Department of Engineering,
University Roma Tre,
Via Vito Volterra 62,
Rome 00146, Italy
e-mail: fabrizio.paolacci@uniroma3.it

Md Shahin Reza

Department of Civil, Environment, and
Mechanical Engineering,
University of Trento,
Via Mesiano 77,
Trento 38123, Italy
e-mail: md.shahin.reza@unitn.it

Silvia Alessandri

Department of Engineering,
University Roma Tre,
Via Vito Volterra 62,
Rome 00146, Italy
e-mail: alessandri.silvia@uniroma3.it

Nicola Tondini

Department of Civil, Environment, and
Mechanical Engineering,
University of Trento,
Via Mesiano 77,
Trento 38123, Italy
e-mail: nicola.tondini@unitn.it

Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received July 3, 2015; final manuscript received November 6, 2015; published online February 8, 2016. Assoc. Editor: Chong-Shien Tsai.

J. Pressure Vessel Technol 138(3), 031801 (Feb 08, 2016) (10 pages) Paper No: PVT-15-1151; doi: 10.1115/1.4032111 History: Received July 03, 2015; Revised November 06, 2015

The need of enhanced seismic analysis and design rules for petrochemical piping systems is widely recognized, where the allowable stress design method is still the customary practice. This paper presents an up-to-date performance-based seismic analysis (PBSA) of piping systems. The concept of performance-based analysis is introduced and a link between limit states and earthquake levels is proposed, exemplifying international code prescriptions. A brief review on seismic design criteria of piping systems is then provided by identifying the main critical issues. Finally, the actual application of the performance-based approach is illustrated through nonlinear seismic analyses of two realistic petrochemical piping systems.

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References

Figures

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Fig. 1

PBSA concept after [17]

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Fig. 2

(a) A 3D FE model of the support structure plus the piping system, (b) specifications of the piping system, and (c) dimensions of the support structure

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Fig. 3

Mode #15 and Mode #16 of the structure

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Fig. 4

(a) Input earthquake accelerogram, (b) response spectrum of the accelerogram, and (c) envelops of maximum and minimum moments about Z axis in the piping system at CLS

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Fig. 5

The piping system considered in this CS

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Fig. 6

Fiber discretization of an element section of the support structure

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Fig. 7

Dynamic pushover curves of the piping system

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Fig. 8

Maximum stress in the pipes at several bays in comparison with stress limits

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Fig. 9

(a) Stress in the support structure and (b) moment-curvature at section A for Acc. #1 at SSE

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