1. A rectangular beam of width b = 15 in., effective depth d= 21.5 in., and total depth h = 24 in. spans 18.5 ft between simple supports. It will carry a dead load of 1.08 kips/ft including self- weight, plus a service live load of 4.00 kips/ft. Reinforcement consists of four evenly spaced No. 7 (No. 22) bars in one row. The clear cover on the sides is 2 in. Material strengths are f₁ = 80,000 psi and f=4000 psi. Confirm the suitability of the proposed design based on Eq. (7.3). fs can be estimated from fy without a strict calculation. 2. For the beam addressed in Problem 1, calculate the effective moment of inertia. The service load coming from the combination of the dead load of 1.80 kips/ft and the live load 4.00 kips/ft shall be considered. The corresponding bending moment shall be calculated as WL2 WL² 8

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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1. A rectangular beam of width b = 15 in., effective depth d= 21.5 in., and total depth h = 24 in.
spans 18.5 ft between simple supports. It will carry a dead load of 1.08 kips/ft including self-
weight, plus a service live load of 4.00 kips/ft. Reinforcement consists of four evenly spaced No.
7 (No. 22) bars in one row. The clear cover on the sides is 2 in. Material strengths are f₁ = 80,000
psi and f=4000 psi.
Confirm the suitability of the proposed design based on Eq. (7.3). fs can be estimated from fy
without a strict calculation.
2. For the beam addressed in Problem 1, calculate the effective moment of inertia. The service
load coming from the combination of the dead load of 1.80 kips/ft and the live load 4.00 kips/ft
shall be considered. The corresponding bending moment shall be calculated as WL2
WL²
8
Transcribed Image Text:1. A rectangular beam of width b = 15 in., effective depth d= 21.5 in., and total depth h = 24 in. spans 18.5 ft between simple supports. It will carry a dead load of 1.08 kips/ft including self- weight, plus a service live load of 4.00 kips/ft. Reinforcement consists of four evenly spaced No. 7 (No. 22) bars in one row. The clear cover on the sides is 2 in. Material strengths are f₁ = 80,000 psi and f=4000 psi. Confirm the suitability of the proposed design based on Eq. (7.3). fs can be estimated from fy without a strict calculation. 2. For the beam addressed in Problem 1, calculate the effective moment of inertia. The service load coming from the combination of the dead load of 1.80 kips/ft and the live load 4.00 kips/ft shall be considered. The corresponding bending moment shall be calculated as WL2 WL² 8
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