Comparison of ISO and API Seismic Design Guidelines Using Three Existing Offshore Platforms

2005 ◽  
Author(s):  
B. Chang ◽  
M. Abraham ◽  
B.-F. Peng
Keyword(s):  
Seismic Design ◽  
Design Guidelines ◽  
Offshore Platforms

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.

Seismic Design Guidelines to Mitigate Upheaval Buckling of Small Diameter Pipes

2012 ◽  
Author(s):  
Hajime Shinkai ◽  
Yoshito Hatsuda ◽  
Nobuhisa Suzuki
Keyword(s):  
High Pressure ◽  
Ground Motion ◽  
Seismic Design ◽  
Research Program ◽  
Strong Ground Motion ◽  
Small Diameter ◽  
Design Guidelines ◽  
Upheaval Buckling ◽  
Offshore Earthquake ◽  
Strong Ground

This paper describes The Draft Seismic Design Guidelines to Mitigate Upheaval Buckling of Small Diameter Pipes which were reported by Ministry of Economy, Trade and Industry in 2011. Upheaval buckling of small diameter gas pipes occurred in a high-pressure gas pipeline and three middle-pressure city lines due to the strong ground motion during the 2007 Niigata Chuetsu Offshore earthquake which was a powerful earthquake with moment magnitude of 6.6. A three year research program had been conducted since 2008 to investigate the upheaval buckling behaviors and develop seismic design guidelines to ensure seismic integrity of small diameter high-pressure gas pipelines and middle-pressure main distribution lines.

Sign in / Sign up

Export Citation Format

Share Document