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Target Reliability Levels for the Design and As...

SKU: GRI-04/0230
Target Reliability Levels for the Design and Assessment of Onshore Natural Gas Pipelines

set of reliability targets has been developed as part of a project to establish reliability-based methods as a viable alternative for the design and assessment of onshore natural gas pipelines. Targets were proposed for ultimate, leakage and serviceability limit states.
Document Type
Report
Report Type
Topical Report
Corporate Source
C-FER Technologies, Edmonton, AB
Sponsor
Gas Research Institute, Des Plaines, IL
Pagination
77p
Product Media
PDF Download
$295.00 / Each
 
Availability: In Stock
Summary:
A set of reliability targets has been developed as part of a project to establish reliability-based methods as a viable alternative for the design and assessment of onshore natural gas pipelines. Targets were proposed for ultimate, leakage and serviceability limit states. The proposed ultimate limit state targets are calibrated to meet the risk levels implied by current codes and industry precedent. The proposed criteria are based on a detailed consideration of both societal and individual risk criteria. Two societal risk criteria were considered: the first based on a fixed expectation of the number of fatalities and the second based on a risk aversion function as characterized by an F/N relationship. Societal risk criteria were calibrated to match or exceed the average safety levels implied by current codes and accepted practice. Individual risk criteria were based on published tolerable levels. The target reliability levels corresponding to the three criteria are presented and a recommended set of targets is presented. The leakage and serviceability limit state targets are based on a combination of published precedent and historical information. The targets are shown to maximize the safety level achieved for a given steel cost.
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