1.) The total area of the section in in² 2.) The gross moment of inertia in inª 3.) The cracking moment in kp-ft 4.) The self weight of the beam in kp/ft 5.) The superimposed uniform load that will cause the beam to crack in k/ft

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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Question
The beam shown in the figure below has the following
properties:28-ft simple span
f'c = 4000 psi
fr (7.5) (Square root of f prime X c)
reinforced concrete weight = 150 lb/ft³
Solve for:
1.) The total area of the section in in²
2.) The gross moment of inertia in inª
3.) The cracking moment in kp-ft
4.) The self weight of the beam in kp/ft
5.) The superimposed uniform load that will cause the beam to
crack in k/ft
4 in.
III
22 in. 30 in.
in.
3 #9
●
-12 in.
●
2 in.
2 in.
Transcribed Image Text:The beam shown in the figure below has the following properties:28-ft simple span f'c = 4000 psi fr (7.5) (Square root of f prime X c) reinforced concrete weight = 150 lb/ft³ Solve for: 1.) The total area of the section in in² 2.) The gross moment of inertia in inª 3.) The cracking moment in kp-ft 4.) The self weight of the beam in kp/ft 5.) The superimposed uniform load that will cause the beam to crack in k/ft 4 in. III 22 in. 30 in. in. 3 #9 ● -12 in. ● 2 in. 2 in.
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