... Steel Design Guide Series Steel and Composite Beams with Web Openings Steel Design Guide Series Steel and Composite Beams with Web Openings Design of Steel and Composite Beams with Web Openings David ... with unreinforced openings, steel beams with reinforced openings, composite beams with unreinforced openings, and compos-ite beams with reinforced openings, respectively. Table 4.5summarizes proportioning and ... below.( 3-1 3)( 3-1 5a)( 3-1 5b)( 3-1 5c)( 3-1 6)( 3-1 7)( 3-1 8a)( 3-1 8b)for ribbed slabs with transverse ribsFor the top tee, if use Fig. A.3 or Eq. 3-1 9 to obtain and replace Eq. 3-1 5c with Eq. 3 -2 0 , with ( 3-1 9)(3 -2 0 )For all...