2. A simply supported beam (Span /=25 ft) has a section as shown below with concrete compressivestrength f=4000 psi (normal weight), and flexural reinforcement strength f,=60,000 psi. The unfactoreddead load is 1.5 kips/ft including its self-weight and the unfactored live load is 2.0 kips/ft.16*21"24"6 No. 8 barswiftMpost2Amid384El48ETFigure P4a) Determine the moment of inertia of cracked section lrb) Determine the effective moment of inertia le for the beamc) Calculate the immediate and long-term deflections at the midspan of the beam, assuming 40% of thelive contribute to the long-term deflection

a) Cracked moment of inertia Icr Icr =b(kd)33+nAsd-kd2n= E1Ec =600004000 =15B=bnAs…

2. A simply supported beam (Span =25 ft) has a section as shown below with concrete compressive strength f=4000 psi (normal weight), and flexural reinforcement strength f=60,000 psi. The unfactored dead load is 1.5 kips/ft including its self-weight and the unfactored live load is 2.0 kips/ft. 16" 21" 24" 6 No. 8 bars

2. A simply supported beam (Span =25 ft) has a section as shown below with concrete compressive strength f=4000 psi (normal weight), and flexural reinforcement strength f=60,000 psi. The unfactored dead load is 1.5 kips/ft including its self-weight and the unfactored live load is 2.0 kips/ft. 16" 21" 24" 6 No. 8 bars

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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