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RE: Adjustment Factors Cd for timber column

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From 2005 NDS, see Section


“The load duration factor, C_D, for the shortest duration load in a combination of loads shall apply for the load combination”.





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From: ken ng [mailto:zy7up(--nospam--at)]
Sent: Thursday, February 05, 2009 09:08
To: seaint(--nospam--at)
Subject: Adjustment Factors Cd for timber column


I'm looking at 2005 Examples Structural Wood Design Problem  #2.  Column has D+S, and the example used Cd = 1.15 which is Snow load and neglected Cd=0.9 for Dead load.

Does anyone know why Cd=0.9 was not apply?