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<br /> <br /> <br />1400 <br /> <br />1200 <br /> <br />1000 <br /> <br /> 800 <br />lD <br />.J <br />~ <br />III <br />U <br />a: <br />0 <br />II. <br /> 600 <br /> <br />400 <br /> <br />200 <br /> <br />o <br />o <br /> <br />LOADED <br /> <br />6 ON 12 <br /> <br />T-2 <br />--T-ll <br />---- T-12 <br /> <br />3 ON 12 <br /> <br />-----...----- T-3 <br />-X- T-4 <br />-----XX- T-9 <br />-XXX- T-1D <br />---T-!3 <br /> <br />LEGEND <br /> <br />UNLOADED <br /> <br />6 ON 12 <br /> <br />............... T-5 <br />-.-T-14 <br />-..-T-15 <br /> <br />3 ON 12 <br /> <br />----T-1 <br />--------- T-7 <br />-'-'-T-13 <br /> <br />100 200 300 400 <br />DEFLECTION, 10-3 IN. <br /> <br />Figure 24. Roof rafter and ceiling joist load <br />deflection curves - spruce (from Pace and <br />Campbell 1978, op. cit. p 6) <br /> <br />32 <br /> <br /> <br />500 <br />