Snow Load Factors For LrfdSource: Journal of Structural Engineering:;1988:;Volume ( 114 ):;issue: 010Author:Richard M. Bennett
DOI: 10.1061/(ASCE)0733-9445(1988)114:10(2371)Publisher: American Society of Civil Engineers
Abstract: Snow load factors are critically examined for use in load and resistance factor design (LRFD). Specifically examined are the effects on structural reliability of the change in the basic ground load to roof load conversion factor from 0.8 to 0.7 and recent statistical data concerning the conversion factor. Using the recent data on the groundload to roof‐load conversion factor, statistics are obtained for the one‐year and fifty‐year snow load. Based on these statistics, the reliability index is on the order of 1.6 when snow load controls the design. Increasing the snow load factor from 1.6 to 2.0 increases the reliability index to roughly 2.0. Also examined is the use of extreme value theory to model the 50‐year snow load. It is determined that a direct application of extreme value theory leads to inaccurate estimates of structural reliability.
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contributor author | Richard M. Bennett | |
date accessioned | 2017-05-08T20:52:47Z | |
date available | 2017-05-08T20:52:47Z | |
date copyright | October 1988 | |
date issued | 1988 | |
identifier other | %28asce%290733-9445%281988%29114%3A10%282371%29.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/30233 | |
description abstract | Snow load factors are critically examined for use in load and resistance factor design (LRFD). Specifically examined are the effects on structural reliability of the change in the basic ground load to roof load conversion factor from 0.8 to 0.7 and recent statistical data concerning the conversion factor. Using the recent data on the groundload to roof‐load conversion factor, statistics are obtained for the one‐year and fifty‐year snow load. Based on these statistics, the reliability index is on the order of 1.6 when snow load controls the design. Increasing the snow load factor from 1.6 to 2.0 increases the reliability index to roughly 2.0. Also examined is the use of extreme value theory to model the 50‐year snow load. It is determined that a direct application of extreme value theory leads to inaccurate estimates of structural reliability. | |
publisher | American Society of Civil Engineers | |
title | Snow Load Factors For Lrfd | |
type | Journal Paper | |
journal volume | 114 | |
journal issue | 10 | |
journal title | Journal of Structural Engineering | |
identifier doi | 10.1061/(ASCE)0733-9445(1988)114:10(2371) | |
tree | Journal of Structural Engineering:;1988:;Volume ( 114 ):;issue: 010 | |
contenttype | Fulltext |