100 



STRESSES IN A TRANSVERSE BENT 



From A lay off one-half of resultant wind on each side, and from the 

 extreme ends drop vertical lines V and F 1 to the dotted lines A B and 

 A C. The vertical lines V and F 1 will be the vertical reactions, the 

 horizontal lines will be H and H 1 , and R and R 1 will be the resultants 

 of the horizontal and vertical reactions at B and C respectively. The 

 stresses are calculated by beginning at the base of the column B as in 

 Case 2. In the polygon a-B -A-b at B, A-B = R, a-B = 2240 Ibs., and 

 <i-b and A-b are the stresses in a-b and A-b respectively. 



10 15 20 



Columns Fixed at BaseX 

 Max Mom in Col- 361200 in- Ibs 



CASE 5 



Wind Load Stress Diagram 



Wind Normal, Roof 18 lbs-5ides 20 Ibs-sq-ff- 



4000 



8000 



Compression 

 "Tension 



TA 



FIG. 57. WIND LOAD STRESS DIAGRAM, CASE 5. 



