Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/41658
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Type: | Conference paper |
Title: | Water Distribution Network Reliability Estimation Using the First-Order Reliability Method |
Author: | Tolson, B. Maier, H. Simpson, A. |
Citation: | Bridging the gap : meeting the world's water and environmental resources challenges [electronic resource] : proceedings of the World Water and Environmental Resources Congress : May 20-24, 2001, Orlando, Florida / Don Phelps, Gerald Sehlke (eds.): 10 p. |
Publisher: | American Society of Civil Engineers |
Issue Date: | 2001 |
ISBN: | 0784405697 9780784405697 |
Conference Name: | World Water and Environmental Resources Congress (2001 : Orlando, Florida) |
Statement of Responsibility: | Bryan A. Tolson, Holger R. Maier, and Angus R. Simpson |
Abstract: | This paper utilizes the First-Order Reliability Method (FORM) for estimating water distribution network (WDN) reliability during critical loading conditions. The factors that are assumed to be uncertain include pipe roughness coefficients and nodal demands. FORM predictions of WDN nodal reliability compare closely with more accurate Monte Carlo Simulation (MCS) estimates. FORM is shown to automatically determine the critical node in the network in a reliable and efficient manner. The critical node reliability approximation to network reliability is evaluated and it is argued that the approximation is not appropriate in some cases. An improved FORM network reliability measure is proposed and shown to more closely approximate network reliability estimates when two failure modes are considered at the two worst nodes in the network. The findings of this paper should be considered in future WDN reliability-based optimization studies. |
Rights: | © 2001 American Society of Civil Engineers |
DOI: | 10.1061/40569(2001)413 |
Published version: | http://dx.doi.org/10.1061/40569(2001)413 |
Appears in Collections: | Aurora harvest Civil and Environmental Engineering publications Environment Institute publications |
Files in This Item:
File | Description | Size | Format | |
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hdl_41658.pdf | Accepted version | 756.71 kB | Adobe PDF | View/Open |
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