A
Th e
Component Manufacturing dverti$er
Adverti$er
Don’t Forget! You Saw it in the
March 2017 #10212 Page #66
All things Wood by Frank Woeste
Impact of Sustained Elevated Temperature on Wood Unlike solid-sawn lumber, the mechanical properties of some materials are greatly affected by ambient temperatures and solar-radiation heating, as depicted by the photograph. However, while the engineering design properties of solid-sawn lumber are not affected by ambient temperatures, they can be affected by some elevated and sustained temperatures when used in special applications. The purpose of this discussion is to review the temperature conditions that require special consideration and applicable adjustments to the published design values for lumber. Bench located in the Deep South; bench seat was not solid-sawn lumber.
The National Design Specification for Wood Construction (NDS) is the building code referenced standard for wood construction in the US and it includes provisions for adjusting design stresses of lumber when used in different applications. A free view-only edition of NDS is available from the AWC website. NDS-2015 Section 2.3.3 and Table 2.3.3 cover the subject of temperature effects on lumber:
PHONE: 800-289-5627
Read/Subscribe online at www.componentadvertiser.com
FAX: 800-524-4982