rules of thumb (from Ching book)
for estimating depth of steel 'W' wide-flange beams>
beams: span/20
girders: span/15
width = 1/3 to 1/2 depth
for estimating depth of concrete beam >
beam: span/16
width: 1/3 to 1/2 depth
beam width should be equal to or greater than width of supporting column
commit to one approach and develop that scheme, include structure and be prepared to design vertical circulation and review codes for Wednesday. email me your late conceptual drafts by end of the day tomorrow.
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