A 3 ft : 7 ft rectangular footing is to be embedded 2 ft into the ground and will supporta single centrally-located column with the following factored LRFD ultimate design loads: PU = 50 k,VU = 27 k, MU = 80 ft@k. VU and MU act in the long direction only. The under-lying soil is a silty sand with c′ = 0, f′ = 31°, g = 123 lb/ft 3, and a very deep groundwatertable. Using LRFD, determine if this design is acceptable. Use a resistance factor of 0.45.
A 3 ft : 7 ft rectangular footing is to be embedded 2 ft into the ground and will supporta single centrally-located column with the following factored LRFD ultimate design loads: PU = 50 k,VU = 27 k, MU = 80 ft@k. VU and MU act in the long direction only. The under-lying soil is a silty sand with c′ = 0, f′ = 31°, g = 123 lb/ft 3, and a very deep groundwatertable. Using LRFD, determine if this design is acceptable. Use a resistance factor of 0.45.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A 3 ft : 7 ft rectangular footing is to be embedded 2 ft into the ground and will support
a single centrally-located column with the following factored LRFD ultimate design loads:
PU = 50 k,VU = 27 k, MU = 80 ft@k. VU and MU act in the long direction only. The under-
lying soil is a silty sand with c′ = 0, f′ = 31°, g = 123 lb/ft
3
, and a very deep groundwater
table. Using LRFD, determine if this design is acceptable. Use a resistance factor of 0.45.
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