A 16 in square concrete column carries factored ultimate column loads of PU = 370 k andMU = 70 k@ft. The vertical service load is 310 k. The footing will be made of concrete withf′c = 3,000 lb/in2 and reinforcing steel with fy = 60 k/in2 . The soil has an allowable bear-ing pressure for bearing capacity of 8,200 lb/ft2 (based on LRFD methods) and an allowable bearing stress for settlement of 5,400 lb/ft2 . The groundwater table is at a great depth. Deter-mine the required footing, width, thickness, size of the flexural reinforcement, and show your design in a sketch.
A 16 in square concrete column carries factored ultimate column loads of PU = 370 k andMU = 70 k@ft. The vertical service load is 310 k. The footing will be made of concrete withf′c = 3,000 lb/in2 and reinforcing steel with fy = 60 k/in2 . The soil has an allowable bear-ing pressure for bearing capacity of 8,200 lb/ft2 (based on LRFD methods) and an allowable bearing stress for settlement of 5,400 lb/ft2 . The groundwater table is at a great depth. Deter-mine the required footing, width, thickness, size of the flexural reinforcement, and show your design in a sketch.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A 16 in square concrete column carries factored ultimate column loads of PU = 370 k and
MU = 70 k@ft. The vertical service load is 310 k. The footing will be made of concrete with
f′
c = 3,000 lb/in2
and reinforcing steel with fy = 60 k/in2
. The soil has an allowable bear-
ing pressure for bearing capacity of 8,200 lb/ft2
(based on LRFD methods) and an allowable
bearing stress for settlement of 5,400 lb/ft2
. The groundwater table is at a great depth. Deter-
mine the required footing, width, thickness, size of the flexural reinforcement, and show your
design in a sketch.
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