SITUATION: A cantilever RC beam with an l-section has the following dimensions: Width of flanges = 250mm, Total depth = 500mm, Thickness of flanges = 110mm, Thickness of web = 110mm The beam is 2.5m long and carries a uniform dead load of 10 KN/m (including self-weight) and a concentrated live load of 30 KN at the free end. (Round-off the modular ratio to the nearest integral value.) Use: fé = 21 MPa, fy = 278 MPa, As = 2500 mm2 (singly-reinforced), Steel cover = 55 mm, Use concrete density = 24 KN/m? (when solving the steel ratio, use b = bw) 1. Determine the Cracked Moment of Inertia. A 1963.96 x 10 mm B 1912.24 x 105 mm 1988.93 x 106 mm D 1922.93 x 106 mm 2. Determine the Cracking Moment. A 27.865 kN-m B 26.685 kN-m 25.685 kN-m D 24.865 kN-m
SITUATION: A cantilever RC beam with an l-section has the following dimensions: Width of flanges = 250mm, Total depth = 500mm, Thickness of flanges = 110mm, Thickness of web = 110mm The beam is 2.5m long and carries a uniform dead load of 10 KN/m (including self-weight) and a concentrated live load of 30 KN at the free end. (Round-off the modular ratio to the nearest integral value.) Use: fé = 21 MPa, fy = 278 MPa, As = 2500 mm2 (singly-reinforced), Steel cover = 55 mm, Use concrete density = 24 KN/m? (when solving the steel ratio, use b = bw) 1. Determine the Cracked Moment of Inertia. A 1963.96 x 10 mm B 1912.24 x 105 mm 1988.93 x 106 mm D 1922.93 x 106 mm 2. Determine the Cracking Moment. A 27.865 kN-m B 26.685 kN-m 25.685 kN-m D 24.865 kN-m
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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