(Note: @ does not include beam weight) @D = 2 kip/ft @= 4 kip/ft 12 ft P₁ = 10 kips (A) f = 5,000 psi; fy = 60,000 psi Unit weight of concrete = 150 lb/cu.ft. 2 in. 28 in. 3 # 11 bars 12 in. 30 in. a) Determine the required shear reinforcement at the most critical section b) Find the location on the beam at which shear reinforcement is not needed

(Note: @ does not include beam weight) @D = 2 kip/ft @= 4 kip/ft 12 ft P₁ = 10 kips (A) f = 5,000 psi; fy = 60,000 psi Unit weight of concrete = 150 lb/cu.ft. 2 in. 28 in. 3 # 11 bars 12 in. 30 in. a) Determine the required shear reinforcement at the most critical section b) Find the location on the beam at which shear reinforcement is not needed

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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1. The column section shown is reinforced with 10 bars having b-400mm, bar size-28mm, fc-35MPa, concrete cover = 50mm, tie diameter = 10mm, and fy = 420MPa. Considering bending along the strong axis for a balanced section, calculate a. the depth of compression block in the column in mm. b. the stress in the middle layer of steel reinforcement in MPa. c. the compressive force in the concrete in kN. d. the compressive force in the extreme compression reinforcement in kN. e. the ultimate axial load capacity of the column in kN. f. the eccentricity of the column in mm. g. the ultimate moment capacity of the column in kN.m h. the pure axial load capacity of the column. b=400mm 28mm 10 bars 600 mm
A rectangular beam 250 mm wide, 500 mm deep is reinforced at the bottom with a 4-20mm diamter 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 = 32.09 MPa and steel yield strength fy=345 MPa for 20mm bars and fy=275 MPa for 16mm bars. Determine the maximum steel area for a tension-conctrolled singly reinforced condition in positive bending with the given material strength.
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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 = 420 MPa for 20-mm bars and fy = 275 MPa for 16-mm bars. Determine the maximum steel area for a tension controlled singly reinforced condition in positive bending
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