78 



STEEL OFFICE BUILDINGS. 



CHAP. II. 



^ 



-,6000 

 '^+6000 



+Z/000 



+150M" 



teMDm MOMENT D/AGRAMS FOR 5 AND 6 FLOODS AND 



-6000 -4800 -6000 



^-+15000 



1000 





4000- 



5500- 



7000 







3000 



1 



<5E 



(1000) ^ 

 1000 



-?/000 



00) 



-39000 



^-- 



,4000 



57000 



- 



5500 

 75000 



9000 



KL. 





-3IZOO 





-45600 



-$0000 



-105600 







^ 



4000- 



-57000 



-75 000 



g 



9000-* 



1 



4000 

 ' "JT 



6000 



J 4.^/3^1 



-^Fhor 



6000 



4nn 



"-l^'Floor 



-J32000 indicates tending moment fn ft-lbs* (000) indicates direct stress in Jbs* 

 FIG. i. WIND STRESSES IN A TALL BUILDING. 



