A simply supported rectangular RC beam is to carry a uniform factored dead load of 1.2 kip/ft and a concentrated factored live load of 16 kip at mid-span. The beam self-weight is not included in these loads. The concrete weighs 135 pcf. The span length is 25 ft. Please find the smallest section allowed by ACI and design accordingly. Use f c’ = 5,000 psi, f y = 75,000 psi. The exposure is interior with no weather exposure. a. Assume an arbitrary self-weight/ft of the beam. b. Find the maximum factored bending moment in the beam. c. Set up the moment equation and solve for the beam section. d. Revise the assumption if needed
A simply supported rectangular RC beam is to carry a uniform factored dead load of 1.2 kip/ft and a concentrated factored live load of 16 kip at mid-span. The beam self-weight is not included in these loads. The concrete weighs 135 pcf. The span length is 25 ft. Please find the smallest section allowed by ACI and design accordingly. Use f c’ = 5,000 psi, f y = 75,000 psi. The exposure is interior with no weather exposure. a. Assume an arbitrary self-weight/ft of the beam. b. Find the maximum factored bending moment in the beam. c. Set up the moment equation and solve for the beam section. d. Revise the assumption if needed
Steel Design (Activate Learning with these NEW titles from Engineering!)
6th Edition
ISBN:9781337094740
Author:Segui, William T.
Publisher:Segui, William T.
Chapter9: Composite Construction
Section: Chapter Questions
Problem 9.1.2P
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A simply supported rectangular RC beam is to carry a uniform factored dead load of 1.2 kip/ft
and a concentrated factored live load of 16 kip at mid-span. The beam self-weight is not included
in these loads. The concrete weighs 135 pcf. The span length is 25 ft. Please find the smallest
section allowed by ACI and design accordingly. Use f c’ = 5,000 psi, f y = 75,000 psi. The
exposure is interior with no weather exposure.
a. Assume an arbitrary self-weight/ft of the beam.
b. Find the maximum factored bending moment in the beam.
c. Set up the moment equation and solve for the beam section.
d. Revise the assumption if needed
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