Problem 3 The Beams E G B1 Typ Are Also Cast With Fe 5 000 Psi Normal Weight Concrete 150 Pcf B 0 8 U 1 (33.31 KiB) Viewed 15 times
Problem 3 The Beams E G B1 Typ Are Also Cast With Fe 5 000 Psi Normal Weight Concrete 150 Pcf B 0 8 U 2 (85.57 KiB) Viewed 15 times
Problem 3 The Beams E G B1 Typ Are Also Cast With Fe 5 000 Psi Normal Weight Concrete 150 Pcf B 0 8 U 3 (85.57 KiB) Viewed 15 times
Problem 3. The beams, e.g., B1 (typ.), are also cast with fe' = 5,000 psi (normal weight concrete, 150 pcf. B: = 0.8). Use d = h-3", for both positive and negative bending. (a) (10 points) Determine per AC1318 the effective flange width (be or by) of a typical beam, B1, subjected to positive bending. (b) (20 points) Use where applicable a be (or by) of 76-in [i.e., ignore the one calculated in part (a)], compute the minimum flexural reinforcement required (i.e., As min) and its corresponding design bending (OM) of B1 for positive bending only. (c) (20 points) Use where applicable a be (or by) of 76-in [i.e., ignore the one calculated in part (a)], compute the maximum flexural reinforcement required (i.e., As max) and its corresponding design bending (OM) of B1 for positive bending only. Use & = 0.005.
Problems 2 and 3 refer to the floor plan shown in Fig. 2. S CI C2 C3 C4 C5 3 G1 (typ) lico C7 C8 Given L = 25 (typ.) and S = 10% (typ.). So, the overall floor plan = 75 x 60 L SI (typ) The beam width (bw) and depth (h) of B7 (typ.) are taken to be 10-in and 20-in, respectively. BI (typ B1 (typ) C9 CIO CIT CI2 A typical girder, e.g., G2, has a width (bw) of 12-in. GI (typ.) C13 C14 C15 C16 Fig. 2 - Floor Plan for Problems 2&3.
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