A reinforced concrete beam has a width of 300 mm and an effective depth of 618 mm.Compressive reinforcement will be placed at d' = 60 mm, f'c = 28 MPa and fy = 415 MPa. UseØ = 0.9 for flexure and load combination of U= 1.2DL + 1.6LL. Reference: NSCP 2015.a. Calculate the steel ratio for a balanced section, phal-b.Calculate the maximum steel ratio for a tension-controlled section, pmax.d.c. If the beam is to support a bending moment of 240 kN-m from dead load and 195kN-m from live load, determine the required design flexural strength of the section.If the beam is to support a bending moment of 240 kN-m from dead load and 195kN-m from live load, determine the number of 28 mmø bars required as tensionreinforcement.

b = 300 mm d = 618 mm d'=60 mm fc = 28 MPa fy = 415 MPa ϕ=0.9

A reinforced concrete beam has a width of 300 mm and an effective depth of 618 mm. Compressive reinforcement will be placed at d' = 60 mm, f'c = 28 MPa and fy = 415 MPa. Use Ø = 0.9 for flexure and load combination of U= 1.2DL + 1.6LL. Reference: NSCP 2015. a. Calculate the steel ratio for a balanced section, phal- b. Calculate the maximum steel ratio for a tension-controlled section, pmax. c. If the beam is to support a bending moment of 240 kN-m from dead load and 195 kN-m from live load, determine the required design flexural strength of the section. If the beam is to support a bending moment of 240 kN-m from dead load and 195 kN-m from live load, determine the number of 28 mmø bars required as tension reinforcement. d.

A reinforced concrete beam has a width of 300 mm and an effective depth of 618 mm. Compressive reinforcement will be placed at d' = 60 mm, f'c = 28 MPa and fy = 415 MPa. Use Ø = 0.9 for flexure and load combination of U= 1.2DL + 1.6LL. Reference: NSCP 2015. a. Calculate the steel ratio for a balanced section, phal- b. Calculate the maximum steel ratio for a tension-controlled section, pmax. c. If the beam is to support a bending moment of 240 kN-m from dead load and 195 kN-m from live load, determine the required design flexural strength of the section. If the beam is to support a bending moment of 240 kN-m from dead load and 195 kN-m from live load, determine the number of 28 mmø bars required as tension reinforcement. d.

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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