Design a square concrete column footing to support a 450-mm x 450-mm reinforced concrete column. The center of the column and footing must coincide. Loads: PDL = 300 kN, Pu = 500 kN, MpL = 100 kN – m, ML = 130 kN – m Column Design Criteria: fé = 28 MPa, fy = 400MP Footing Design Criteria: f' = 21 MPa, fy = 400MPa, qa = 180 kPa,D, = 1.50 m, ys = 16 kN/m³ Yc = 24 kN/m³, d, = 20 mm, assume a thickness of the footing of 500 mm. %3D %3D %3D
Design a square concrete column footing to support a 450-mm x 450-mm reinforced concrete column. The center of the column and footing must coincide. Loads: PDL = 300 kN, Pu = 500 kN, MpL = 100 kN – m, ML = 130 kN – m Column Design Criteria: fé = 28 MPa, fy = 400MP Footing Design Criteria: f' = 21 MPa, fy = 400MPa, qa = 180 kPa,D, = 1.50 m, ys = 16 kN/m³ Yc = 24 kN/m³, d, = 20 mm, assume a thickness of the footing of 500 mm. %3D %3D %3D
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Design a square concrete column footing to support a 450-mm x 450-mm reinforced concrete column.
The center of the column and footing must coincide.
Loads: ??? = 300 ??, ??? = 500 ??, ??? = 100 ?? − ?, ??? = 130 ?? − ?
Column Design Criteria: ??
′ = 28 ???, ?? = 400???
Footing Design Criteria: ??
′ = 21 ???, ?? = 400???, ?? = 180 ???,?? = 1.50 ?, ?? = 16 ??/?3
,?? =
24 ??/?3
, ?? = 20 ??, assume a thickness of the footing of 500 mm.
Transcribed Image Text:Design a square concrete column footing to support a 450-mm x 450-mm reinforced concrete column.
The center of the column and footing must coincide.
Loads: PoL = 300 kN, Pu = 500 kN, MpL = 100 kN – m, M1 = 130 kN – m
Column Design Criteria: f = 28 MPa, fy = 400MPA
Footing Design Criteria: fi = 21 MPa, fy = 400MPA, qa = 180 kPa,D; = 1.50 m, ys = 16 kN/m³,Yc
24 kN/m³, d, = 20 mm, assume a thickness of the footing of 500 mm.
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