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Unformatted text preview: concentrated factored load of 12 kips. It spans 18 ft, and restraining end moments at full factored load are 137 ftkips at each support. It is reinforced with three No. 9 bars for both positive and negative bending. If c f = 4000 psi, through what part of the beam is web reinforcement theoretically required if: (a) Eq. (4.12b) in text is used (b) Eq. (4.12a) in text is used Comment on the result. 3. A rectangular isolated beam has an effective span of 25ft and carries a working live load of 7500 lb per linear foot and no external load except its self weight. Design the necessary shear reinforcement. Use the more approximate value of V c given by Eq. (4.12b) in text. Given: c f = 4000 psi, normal weight concrete y f = 60,000 psi b w = 14 in d = 28 in h = 30 in Longitudinal tension steel: six No. 9 bars No axial force acts on the beam...
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This note was uploaded on 07/27/2010 for the course CIVL 4080 taught by Professor Casadas during the Spring '08 term at Rensselaer Polytechnic Institute.
 Spring '08
 CASADAS

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