suppor kN/m (including self weight) and a live load of 82.5 kN/m. It has a clear span of 6 m. has a width of 400 mm and has an effective depth of 625 mm. F'c = 27.6 MPa, Fy = 414 MPa. Use normal weight of concrete with λ = 1.0. Using NSCP (USD), a. Determine the spacing requirement at the critical section based on the de will be mor

suppor kN/m (including self weight) and a live load of 82.5 kN/m. It has a clear span of 6 m. has a width of 400 mm and has an effective depth of 625 mm. F'c = 27.6 MPa, Fy = 414 MPa. Use normal weight of concrete with λ = 1.0. Using NSCP (USD), a. Determine the spacing requirement at the critical section based on the de will be mor

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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A rectangular beam 250 mm wide, 500 mm deep is reinforced at the bottom with 4-20-mm-diameter bars and at the top with 2-16-mm bars. Concrete cover to bar centroid at the top is 80 mm and at the bottom is 70 mm. Use concrete strength f’c = 27 MPa and steel yield strength fy = 415 MPa for 20-mm bars and fy = 275 MPa for 16-mm bars. Determine the maximum steel ratio if the beam is singly reinforced in positive bending with the given material strengths and the tensile strain is limited to 0.004 upon crushing of concrete. Write the answer in 5 decimal places only.
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A rectangular beam 250 mm wide, 500 mm deep is reinforced at the bottom with 4-20-mm-diameter bars and at the top with 2-16-mm bars. Concrete cover to bar centroid at the top is 80 mm and at the bottom is 70 mm. Use concrete strength f’c = 21 MPa and steel yield strength fy = 415 MPa for 20-mm bars and fy = 275 MPa for 16-mm bars. 1. Determine the tensile steel ratio for positive bending. 2. Determine the depth of the uniform rectangular stress block on the beam section at ultimate stage when subject to positive bending. 3. Determine the design moment capacity in kN•m of the beam in positive bending.
Principle of Reinforced Concrete Design
A rectangular beam 250 mm wide, 500 mm deep is reinforced at the bottom with 4-20-mm-diameter bars and at the top with 2-16-mm bars. Concrete cover to bar centroid at the top is 80 mm and at the bottom is 70 mm. Use concrete strength f’c = 21 MPa and steel yield strength fy = 350 MPa for 20-mm bars and fy = 275 MPa for 16-mm bars. 1. Determine the maximum steel ratio if the beam is singly reinforced in negative bending with the given material strengths and the tensile strain is limited to 0.004 upon crushing of concrete. Write the answer in 5 decimal places only. 2. Determine the maximum steel ratio if the beam is singly reinforced in positive bending with the given material strengths and the tensile strain is limited to 0.005 upon crushing of concrete. Write the answer in 5 decimal places only.
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A 6m long simply supported reinforced concrete beam has a width of 350mm and an overal1 depth of 470mm. The beans is reinforced with 2-28mm compression bars and 4-28mm tension bars, each located 70mm from the extreme fibers. Concrete strength f'c = 20. 7 MPa, and steel yield strength fy=415 MPa. Determine the ff: 1) Depth of compression block assuming both tension and compression steel yields. 2) what is the ultimate moment capacity of the beam in KN.m. 3) Determine the additional concentrated live load that can be applied at midspan if the dead load including the weight of the beam is 20KN/m. Use Mu=1.2Mdl+1.6M11 (Based of NSCP 2015) Show complete solution and neat handwriting. Use NSCP 2015.
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