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Exercise 2: Design of singly reinforced concrete sections Questions 1: A singly reinforced beam section is shown in the figure below. Calculate the nominal flexural strength Mn and the design flexural strength Mn. (Do not consider the hanger bars in the calculation) Questions 2: Based on the results (design moments) from Exercise 1, design the longitudinal reinforcement for the continuous beam. Design parameters: Hanger bars 450 4-D25 300 · f'e=280 kgf/cm² (or 28 MPa) fy=4200 kgf/cm² (or 420 MPa) Concrete cover = 4 cm or (40 mm) Longitudinal reinforcement areas (unit:mm²) Span AB Left Mid. Right Left Span BC Mid. Right Left Span CD Mid. end end end end end Required top steel 500 area Provided top steel bars (for example 4-D29) Bottom steel area Design parameters: f'e=280 kgf/cm² (or 28 MPa) fy=4200 kgf/cm² (or 420 MPa) Provided bottom steel bars Design- Strip 5.3 m E 5.3 m 5.3 m 6.7 m + Slab thickness 150 mm 6.7 m Beam 2 (cross-section =300x600 mm) 5.3 m D B 5.3 m Structural Framing Plan ၁ 5.3 m Right end

Exercise 2: Design of singly reinforced concrete sections Questions 1: A singly reinforced beam section is shown in the figure below. Calculate the nominal flexural strength Mn and the design flexural strength Mn. (Do not consider the hanger bars in the calculation) Questions 2: Based on the results (design moments) from Exercise 1, design the longitudinal reinforcement for the continuous beam. Design parameters: Hanger bars 450 4-D25 300 · f'e=280 kgf/cm² (or 28 MPa) fy=4200 kgf/cm² (or 420 MPa) Concrete cover = 4 cm or (40 mm) Longitudinal reinforcement areas (unit:mm²) Span AB Left Mid. Right Left Span BC Mid. Right Left Span CD Mid. end end end end end Required top steel 500 area Provided top steel bars (for example 4-D29) Bottom steel area Design parameters: f'e=280 kgf/cm² (or 28 MPa) fy=4200 kgf/cm² (or 420 MPa) Provided bottom steel bars Design- Strip 5.3 m E 5.3 m 5.3 m 6.7 m + Slab thickness 150 mm 6.7 m Beam 2 (cross-section =300x600 mm) 5.3 m D B 5.3 m Structural Framing Plan ၁ 5.3 m Right end

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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Exercise 2: Design of singly reinforced concrete sections Questions 1: A singly reinforced beam section is shown in the figure below. Calculate the nominal flexural strength Mn and the design flexural strength Mn. (Do not consider the hanger bars in the calculation) Questions 2: Based on the results (design moments) from Exercise 1, design the longitudinal reinforcement for the continuous beam. Design parameters: Hanger bars 450 4-D25 300 · f'e=280 kgf/cm² (or 28 MPa) fy=4200 kgf/cm² (or 420 MPa) Concrete cover = 4 cm or (40 mm) Longitudinal reinforcement areas (unit:mm²) Span AB Left Mid. Right Left Span BC Mid. Right Left Span CD Mid. end end end end end Required top steel 500 area Provided top steel bars (for example 4-D29) Bottom steel area Design parameters: f'e=280 kgf/cm² (or 28 MPa) fy=4200 kgf/cm² (or 420 MPa) Provided bottom steel bars Design- Strip 5.3 m E 5.3 m 5.3 m 6.7 m + Slab thickness 150 mm 6.7 m Beam 2 (cross-section =300x600 mm) 5.3 m D B 5.3 m Structural Framing Plan ၁ 5.3 m Right end
Transcribed Image Text:Exercise 2: Design of singly reinforced concrete sections Questions 1: A singly reinforced beam section is shown in the figure below. Calculate the nominal flexural strength Mn and the design flexural strength Mn. (Do not consider the hanger bars in the calculation) Questions 2: Based on the results (design moments) from Exercise 1, design the longitudinal reinforcement for the continuous beam. Design parameters: Hanger bars 450 4-D25 300 · f'e=280 kgf/cm² (or 28 MPa) fy=4200 kgf/cm² (or 420 MPa) Concrete cover = 4 cm or (40 mm) Longitudinal reinforcement areas (unit:mm²) Span AB Left Mid. Right Left Span BC Mid. Right Left Span CD Mid. end end end end end Required top steel 500 area Provided top steel bars (for example 4-D29) Bottom steel area Design parameters: f'e=280 kgf/cm² (or 28 MPa) fy=4200 kgf/cm² (or 420 MPa) Provided bottom steel bars Design- Strip 5.3 m E 5.3 m 5.3 m 6.7 m + Slab thickness 150 mm 6.7 m Beam 2 (cross-section =300x600 mm) 5.3 m D B 5.3 m Structural Framing Plan ၁ 5.3 m Right end
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