Question

6-18%20(1).pdf Due: 06 March 2018 The beam shown in the figure is subjected to a uniformly distributed dead load (without including self-weight) equal to 0.5 kip/ft, and a uniformly distributed live load of 1.3 kip/ft. You may initially estimate the beam weight to be about 0.3 kip/ft, but you must verify and adjust this weight (and the corresponding moments) if necessary after determining the actual beam dimensions 1. The beam should be analyzed for the two loading conditions shown in order to determine the peak negative and positive moments. Loading configuration (a) will result in the maximum negative moment and loading (b) will result in maximum positive moment at middle of the center span. This procedure is called live-load patterning. Design the cross section of the beam for the maximum negative or positive moment (in absolute value). Use an h/bw ratio of 1.7 in your solution (the exact ratio may change slightly but you should try to get close to it). After establishing actual dimensions, calculate reinforcement areas needed and select reinforcing bars needed at each of the critical sections for positive and negative moment. Finally draw the details of each of the two sections. Use f. 5,000 psi and f, 60,000 psi. (100 pts) ↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓ q-1.3 kip-ft b = 0.5 kip-ft 6ft 6 ft 35 ft IL 25 ft *Does not include self-weight

Please answer the question. The beam should be 35 ft. long for both pictures. (disregard the 25 ft. length. it should be 35 ft.) thank you

Reinforced Concrete

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