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

2016 ◽  
Vol 138 (3) ◽  
Author(s):  
Oreste S. Bursi ◽  
Fabrizio Paolacci ◽  
Md Shahin Reza ◽  
Silvia Alessandri ◽  
Nicola Tondini
Keyword(s):  
Seismic Design ◽  
Seismic Analysis ◽  
Design Method ◽  
Limit States ◽  
Design Rules ◽  
Analysis And Design ◽  
Actual Application ◽  
Piping Systems ◽  
Critical Issues ◽  
Allowable Stress Design

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.

Performance-Based Analysis of Coupled Support Structures and Piping Systems Subject to Seismic Loading

2015 ◽  
Author(s):  
Oreste S. Bursi ◽  
Fabrizio Paolacci ◽  
Md Shahin Reza
Keyword(s):  
Seismic Design ◽  
Seismic Analysis ◽  
Design Method ◽  
Design Guidelines ◽  
Piping System ◽  
Support Structures ◽  
Limit States ◽  
Piping Systems ◽  
Allowable Stress Design

The prevailing lack of proper and uniform seismic design guidelines for piping systems impels designers to follow standards conceived for other structures, such as buildings. The modern performance-based design approach is yet to be widely adopted for piping systems, while the allowable stress design method is still the customary practice. This paper presents a performance-based seismic analysis of petrochemical piping systems coupled with support structures through a case study. We start with a concept of performance-based analysis, followed by establishing a link between limit states and earthquake levels, exemplifying Eurocode and Italian prescriptions. A brief critical review on seismic design criteria of piping, including interactions between piping and support, is offered thereafter. Finally, to illustrate actual applications of the performance-based analysis, non-linear analyses on a realistic petrochemical piping system is performed to assess its seismic performance.

Main Issues on the Seismic Design of Industrial Piping Systems and Components

2013 ◽  
Author(s):  
Fabrizio Paolacci ◽  
Md. Shahin Reza ◽  
Oreste S. Bursi ◽  
Arnold M. Gresnigt ◽  
Anil Kumar
Keyword(s):  
Seismic Design ◽  
Seismic Analysis ◽  
Experimental Investigations ◽  
Piping System ◽  
Analysis And Design ◽  
Correct Definition ◽  
Component Design ◽  
Piping Systems ◽  
Current Design ◽  
Bolted Flange

A significant number of damages in piping systems and components during recent seismic events have been reported in literature which calls for a proper seismic design of these structures. Nevertheless, there exists an inadequacy of proper seismic analysis and design rules for a piping system and its components. Current seismic design Codes are found to be over conservative and some components, e.g., bolted flange joints, do not have guidelines for their seismic design. Along this line, this paper discusses about the main issues on the seismic analysis and design of industrial piping systems and components. Initially, seismic analysis and component design of refinery piping systems are described. A review of current design approaches suggested by European (EN13480:3) and American (ASME B31.3) Codes is performed through a Case Study on a piping system. Some limits of available Codes are identified and a number of critical aspects of the problem e.g., dynamic interaction between pipes and rack, correct definition of the response factor and strain versus stress approach, are illustrated. Finally, seismic performance of bolted flange joints based on the results of experimental investigations carried out by the University of Trento, Italy, will be discussed.

Implementing the performance-based seismic design for new reinforced concrete structures: Comparison among ASCE/SEI 41, TBI, and LATBSDC

2021 ◽  
pp. 875529302098196
Author(s):  
Siamak Sattar ◽  
Anne Hulsey ◽  
Garrett Hagen ◽  
Farzad Naeim ◽  
Steven McCabe
Keyword(s):  
Reinforced Concrete ◽  
Los Angeles ◽  
Seismic Design ◽  
Common Ground ◽  
Seismic Analysis ◽  
Tall Buildings ◽  
The United States ◽  
Analysis And Design ◽  
Performance Based Seismic Design ◽  
New Buildings

Performance-based seismic design (PBSD) has been recognized as a framework for designing new buildings in the United States in recent years. Various guidelines and standards have been developed to codify and document the implementation of PBSD, including “ Seismic Evaluation and Retrofit of Existing Buildings” (ASCE 41-17), the Tall Buildings Initiative’s Guidelines for Performance-Based Seismic Design of Tall Buildings (TBI Guidelines), and the Los Angeles Tall Buildings Structural Design Council’s An Alternative Procedure for Seismic Analysis and Design of Tall Buildings Located in the Los Angeles Region (LATBSDC Procedure). The main goal of these documents is to regularize the implementation of PBSD for practicing engineers. These documents were developed independently with experts from varying backgrounds and organizations and consequently have differences in several degrees from basic intent to the details of the implementation. As the main objective of PBSD is to ensure a specified building performance, these documents would be expected to provide similar recommendations for achieving a given performance objective for new buildings. This article provides a detailed comparison among each document’s implementation of PBSD for reinforced concrete buildings, with the goal of highlighting the differences among these documents and identifying provisions in which the designed building may achieve varied performance depending on the chosen standard/guideline. This comparison can help committees developing these documents to be aware of their differences, investigate the sources of their divergence, and bring these documents closer to common ground in future cycles.

Application of Expansion Double Spherical Seismic Isolation Bearing in Seismic Design of Continuous Girder Bridges

2011 ◽  
Vol 243-249 ◽  
pp. 1928-1934 ◽  
Author(s):  
Tian Bo Peng ◽  
Zhen Nan Wang ◽  
Xun Tao Yu ◽  
Cheng Yu Yang
Keyword(s):  
Seismic Design ◽  
Seismic Isolation ◽  
Seismic Analysis ◽  
Design Method ◽  
Longitudinal Direction ◽  
Vertical Displacement ◽  
Girder Bridges ◽  
Earthquake Effect ◽  
Continuous Girder Bridge ◽  
Girder Bridge

The double spherical seismic isolation (DSSI for short) bearing has been adopted in seismic design of several important engineering projects since developed recently. It was used generally as fixed bearings in a continuous girder bridge in these projects, and only a few fixed piers, usually just one fixed pier would transmit the horizontal earthquake action to the foundation, which is uneconomical and results in the much larger seismic risk in the longitudinal direction of a continuous girder bridge than that in the transverse direction. In order to share the earthquake effect with all the piers and avoid relative vertical displacement among all the bearings under the normal traffic conditions, a new seismic design method of continuous girder bridges is introduced. The configuration and working mechanism of two kinds of DSSI bearings used to make the new seismic design possible are introduced. It’s shown that the method is preferable for the seismic design of continuous girder bridges by a numerical seismic analysis with a four-span continuous girder bridge.

The Design of Performance-Based Seismic Analysis of Main Power Plant of the Conventional Island

2011 ◽  
Vol 243-249 ◽  
pp. 3992-3996
Author(s):  
Gui Xuan Wang ◽  
Jie Zhao ◽  
Zhen Liu ◽  
Yang Zheng
Keyword(s):  
Power Plant ◽  
Seismic Design ◽  
Nuclear Power ◽  
Seismic Analysis ◽  
Design Method ◽  
Development Trend ◽  
Design Procedures ◽  
New Development ◽  
Practical Engineering ◽  
Performance Based Seismic Design

The performance-based design is a new development trend of seismic design. It is a breakthrough of the seismic design procedures. Based on the existing performance design method and some documents provided performance objective, computing and seismic structural measures, the performance-based seismic design is applied to the special structure of conventional island of the nuclear power plant. The performance-based seismic design is proved to be feasible according to a practical engineering case, as well the performance-based seismic design is needed to be further improved.

Design of Piping Systems for Accidental Explosion and Fire Events

2021 ◽  
Author(s):  
Necip Onder Akinci ◽  
James Loudoun ◽  
Krishna Parvathaneni ◽  
Hyun-Su Kim
Keyword(s):  
Extreme Events ◽  
Holistic Approach ◽  
Failure Criteria ◽  
Analysis And Design ◽  
Linear Elastic ◽  
Design Basis ◽  
Piping Systems ◽  
Process Plants ◽  
Critical Portion ◽  
Allowable Stress Design

Abstract Piping systems constitute the most critical portion of process plants. Proper blast and fire design of critical piping systems improve safety and resiliency. Design of piping and pipe supports are typically governed by operating and abnormal load conditions depending on the design basis. Well established analysis and design methodologies as per the applicable ASME codes ensure performance of piping systems against load cases such as internal pressure, thermal expansion, self-weight, wind, seismic and vibration. Pipe stress analysis using code based linear elastic analysis methods allow design for these types of conventional load cases in a practical way. However, beyond design basis load cases from hydrocarbon accidents including explosion and fires can pose additional challenges. Limitations of conventional design tools against demands due to extreme events require use of more advanced techniques. This study presents a practical approach for assessment and design of piping systems for hydrocarbon accident events. Performance based failure criteria for piping systems has been shown to reduce the conservatism compared to allowable stress design for extreme events. Examples from major projects and case studies are also presented to demonstrate the technical approach. Consideration of a holistic approach accounting for interaction of piping and its support structure plays a key role in improving the design process.

Development of Seismic Design Method for Free Standing Rack

2013 ◽  
Author(s):  
Akihisa Iwasaki ◽  
Yoshitsugu Nekomoto ◽  
Hideyuki Morita ◽  
Katsuhiko Taniguchi ◽  
Daisaku Okuno ◽  
...  
Keyword(s):  
Seismic Design ◽  
Seismic Analysis ◽  
Design Method ◽  
Spent Fuel ◽  
Free Standing ◽  
Highly Nonlinear ◽  
Spent Fuel Pool ◽  
Vibration Tests ◽  
Seismic Design Method ◽  
Complex Phenomena

For high earthquake resistance and ease of installation, free standing racks which are not anchored to the pool floor or walls has been adopted in many countries. Under the earthquake, the response of the free standing rack is highly nonlinear and involves a complex combination of motions (sliding, rocking, twisting, and turning) and impacts between the fuel assemblies and the fuel cell walls, rack-to-rack, and the pit floor and the rack pedestals. To obtain an accurate simulation of the free standing rack, the seismic analysis requires careful considerations of these complex phenomena (sliding, rocking, twisting, and turning), fluid coupling effects and frictional effects. The important evaluation items while applying the free standing rack to the actual nuclear plants are maximum sliding displacement of the rack, maximum rocking displacement and maximum leg load under earthquake. When the sliding displacement increases, the rack may collide against the spent fuel pool wall. In addition, the free standing rack should not exhibit tilt sufficient to cause to the rack to overturn. The vibration tests were conducted in order to predict the rack behavior under earthquake, and the analysis method was validated by comparison to tests results. Furthermore, we developed the seismic design method to obtain the margin of safety for free standing rack.

Study on Dynamic Calculation Method of Anti-Slide Pile

2014 ◽  
Vol 578-579 ◽  
pp. 402-406
Author(s):  
Tian Zhong Ma ◽  
Yan Peng Zhu
Keyword(s):  
Seismic Design ◽  
Analytical Solutions ◽  
Calculation Method ◽  
Seismic Analysis ◽  
Calculation Model ◽  
Dynamic Calculation ◽  
New Approach ◽  
Analysis And Design ◽  
Supporting Structure ◽  
Prestressed Anchor

A dynamic calculation model of the pile supporting structure with single prestressed anchor for the slope is proposed in this paper. The motion equation of the pile-prestressed anchor is established and the analytical solutions are obtained. In addition the proposed method is applied to a project case to carry out the seismic analysis and design of the pile supporting structure with single prestressed anchor. The calculation model provides a new approach for earthquake analysis and seismic design of slope supported by pile supporting structure with pre-stress anchor.

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