A 250 mm x 450 mm reinforced concrete beam (Fy = 248 , fc’ = 30 MPa) that is 12 meters long is supported by hinge/roller at ends and midspan. It is reinforced by 4-28mm Φ bars and in compression by 2-28mm Φ bars. Effective concrete cover is 65 mm. 1. Find the depth of rectangular compression block. a. 85.82 mm b. 65.82 mm c. 75.82 mm d. 95.82 mm 2. Find the nominal capacity. a. 105.91 kN.m b. 205.91 kN.m c. 305.91 kN.m d. 405.91 kN.m
A 250 mm x 450 mm reinforced concrete beam (Fy = 248 , fc’ = 30 MPa) that is 12 meters long is supported by hinge/roller at ends and midspan. It is reinforced by 4-28mm Φ bars and in compression by 2-28mm Φ bars. Effective concrete cover is 65 mm. 1. Find the depth of rectangular compression block. a. 85.82 mm b. 65.82 mm c. 75.82 mm d. 95.82 mm 2. Find the nominal capacity. a. 105.91 kN.m b. 205.91 kN.m c. 305.91 kN.m d. 405.91 kN.m
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A 250 mm x 450 mm reinforced concrete beam (Fy = 248 , fc’ = 30 MPa) that is 12 meters long is supported by hinge/roller at ends and midspan. It is reinforced by 4-28mm Φ bars and in compression by 2-28mm Φ bars. Effective concrete cover is 65 mm.
1. Find the depth of rectangular compression block.
a. 85.82 mm
b. 65.82 mm
c. 75.82 mm
d. 95.82 mm
2. Find the nominal capacity.
a. 105.91 kN.m
b. 205.91 kN.m
c. 305.91 kN.m
d. 405.91 kN.m
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