Sheet1System 11W12x22System 21W12x222W16x312W16x313W21x503W21x574W24x76System 41W12x222W16x31System 31W12x223W21x502W16x314W14x343W21x505W21x574W30x996W24x767W21x44The load are 0.5k/ft for the beam at the perimeter and 1k/ft for the interior beams.Weight computation

System 1System 2

W12x22(22)(30)(4)2640W12x2222*30*21320W16x31(31)(30)(10+4*1.15)13578W16x3131*30*(10+4*1.15)13578W21x50(50)(30)(2*1.15)3450W21x5757*30*(2*1.15)393319668lbW24x7676*30*(2*1.15)5244beams5.46lb/ft^224075lbtotal5.96lb/ft^2beams6.69lb/ft^2total7.13lb/ft^2

System 3System 4

W12x2222*30*42640W12x2222*30*21320W16x3131*30*(8+4*1.15)11718W16x3131*30*(10+2*1.15)11439W21x5050*30*(2*1.15)3450W21x5050*30*(1*1.15)1725W30x9999*30*(2*1.15)6831W14x3434*30*(1*1.15)117324639lbW21x5757*30*(2*1.15)3933beams6.84lb/ft^2W24x7676*30*(1*1.15)2622total7.28lb/ft^2W21x4444*30*(1*1.15)151823730lb6.59lb/ft^27.03lb/ft^2System 1System 2System 3System 4