DETAILS OF FRAMEWORK. 



85 



DETAILS OF FRAMEWORK. The framework of a steel skeleton building consists of 

 floorbcams and floor girders which carry the floor loads to the columns, of columns which carry 

 i In- loads to the foundations and of foundations which transfer the loads to the earth; the columns 

 art- brart-d transversely and longitudinally by wind bracing and by means of the floor girders, 

 and the roof is carried on trusses or on roof beams or purlins. There is in addition miscellaneous 

 framing to carry the outside walls and the cornice, and the framing around elevators, etc. For 

 additional details, see Chapter XII, Structural Drafting. 



I 





Pocf 



I7 th 'r~/oor 



16 th -Floor 



I5 th -Floor 



/4^-f/oor 



115 



115 



82 



116 



8 



^ 



115 



NOTE '--Figures in 



^/ denote sheet numbers. 



FIG. 6. COLUMN SCHEDULE. 



. 



Floor Plan. The floor is carried on floorbeams to the floor girders and by the floor girders 

 to the columns. A detail plan of a section of a floor plan of a steel skeleton building is shown in 

 Fig. 2. The floorbeams, girders and columns are numbered as shown. 



Details of floorbeams for an eight story steel office building are given in Fig. 3. For addi- 

 tional details of rolled beams and bracing, see Chapter XII. Details of cast separators are given 

 in Fig. 4. 



Columns. Details of steel columns that are commonly used in steel skeleton buildings are 

 given in Fig. 5. The built-H columns made of 4 angles and I plate or of 4 angles and 3 or 5 plates 



