Problem 4.19

 

Location of Adjustment Descriptions and Values

 

Question Part	Adjustment Factor		Sawn Lumber		Glulams
			Location of NDS Description	Location of NDS Values	Location of  NDS Description	Location of  NDS Values
a	CD	load duration factor (ASD only)	C2.3.2	table 2.3.2, appendix B	C2.3.2
	Ct	temperature factor	appendix C, C2.3.3	table 2.3.3	C2.3.3
		fire retardant treatment	C2.3.4	manufacturer
	KF	format conversion factor (LRFD only)	C2.3.5	appendix N table N1	C2.3.5
	Φ	resistance factor (LRFD only)	C2.3.6	appendix N table N2	C2.3.6
b	λ	time effect factor (LRFD only)	C2.3.7	appendix N table N3	C2.3.7
	CL	beam stability factor	C3.3.3	section 3.3.3	C3.3.3
	CP	column stability factor	C3.7.1	section 3.7.1	C3.7.1
	Cb	bearing area factor	C3.10.4	section 3.10.4	C3.10.4
c	CM	wet service factor	C4.3.3	supplement tables 4A, 4B, 4C, 4D, 4E, 4F	C5.3.3	supplement tables 5A, 5B, 5C
d	CF	size factor	C4.3.6	section 4.3.6, supplement tables 4A, 4B, 4D, 4E, 4F
	Cfu	flat use factor	C4.3.7	supplement tables 4A, 4B, 4C, 4E, 4F	C5.3.7	supplement tables 5A, 5B, 5C
	Ci	incising factor	C4.3.8	table 4.3.8
e	Cr	repetitive member factor	C4.3.9	supplement tables 4A, 4B, 4C, 4E, 4F
		pressure-preservative treatment	C4.3.13	none	C5.3.11
	CT	buckling stiffness factor (wood trusses)	4.4.2
	CV	volume factor			C5.3.6	supplement tables 5A, 5B, 5C
	Cc	curvature factor			C5.3.8

 

 

Relation between Properties and Adjustments (from NDS table 4.3.1)

 

	CD	λ	CM	CF	Cfu	Ct	Cr
Fb	X	X	X	X	X	X	X
Ft	X	X	X	X		X
Fv	X	X	X			X
Fc⊥		X	X			X
Fc	X	X	X	X		X
E			X			X
Emin			X			X