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Question 1: 10M Stirrups 350mm 2 - 20M 2-25M+1-20M 850mm F The figure above shows the cross section of a grade beam. fc-30MPa, fy=400MPa. Max aggregate size is 20mm. Minimum spacing between bars is 35mm. Concrete cover = 40mm Determine... a) Beam effective depth (d) b) Calculate reinforcing ratio (p) c) The depth of the equivalent rectangular stress block (a), and location of neutral axis (c).

Question 1: 10M Stirrups 350mm 2 - 20M 2-25M+1-20M 850mm F The figure above shows the cross section of a grade beam. fc-30MPa, fy=400MPa. Max aggregate size is 20mm. Minimum spacing between bars is 35mm. Concrete cover = 40mm Determine... a) Beam effective depth (d) b) Calculate reinforcing ratio (p) c) The depth of the equivalent rectangular stress block (a), and location of neutral axis (c).

Structural Analysis
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 1: 10M Stirrups 350mm 2 - 20M 2-25M+1-20M 850mm F The figure above shows the cross section of a grade beam. fc-30MPa, fy=400MPa. Max aggregate size is 20mm. Minimum spacing between bars is 35mm. Concrete cover = 40mm Determine... a) Beam effective depth (d) b) Calculate reinforcing ratio (p) c) The depth of the equivalent rectangular stress block (a), and location of neutral axis (c). d) Check the failure mode of the beam using strain diagram e) Calculate Mr (Moment of resistance) in kN.m f) Calculate balanced reinforcing ratio (Pb). Confirm your finding in item "d" by comparing current reinforcement ratio to balanced reinforcement ratio.
Transcribed Image Text:Question 1: 10M Stirrups 350mm 2 - 20M 2-25M+1-20M 850mm F The figure above shows the cross section of a grade beam. fc-30MPa, fy=400MPa. Max aggregate size is 20mm. Minimum spacing between bars is 35mm. Concrete cover = 40mm Determine... a) Beam effective depth (d) b) Calculate reinforcing ratio (p) c) The depth of the equivalent rectangular stress block (a), and location of neutral axis (c). d) Check the failure mode of the beam using strain diagram e) Calculate Mr (Moment of resistance) in kN.m f) Calculate balanced reinforcing ratio (Pb). Confirm your finding in item "d" by comparing current reinforcement ratio to balanced reinforcement ratio.
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