Calculate the maximum allowable load (in KN) of a 5.0m long sawn lumber column can carry. The nominal size is 152.4 x 152.4 mm (6"x6") and the actual size is 139.7mm x 139.7mm (5.5" x 5.5"). The applied loading is for 15-year duration and the wood used is visually graded sawn square Tindalo (E= 11.721 GPA, Fc = 10.342 MPa). The column is pinned both ends. Consider adjustments for load duration and moisture condition.

I'M CONFUSED ON PUTTING EVERYTHIN TOGETHER COURSE BEARING DISTANCE COS SIN LATITUDE DEPARTURE 1-2             2-3             3-4             4-5             5-6

w = 1.5 kips A 19' B

Line CD to be laid out using a 100 ft steel tape. With a cross sectional area 0.0060 in 2, weight 2.0 lb, and standardized at 68 °F to be 100.001 ft between end marks when supported throughout with a 12 lb pull, and if supported at ends only under 16 lb tension.  Line CD length was found to be 622.85ft on that day the temperature was found to be 104° F, the tape was supported at ends only with 18 lb pull.   ​Find the corrected length measured of line CD.     Recorded distance (ft) Temperature (F) Means of support Tension (Lb) 622.85 ft 104 Throughout 16 622.85 104 Ends only 18