A 12 in wide concrete block wall carries an unfactored vertical design load of 25.1 k/ft. The sustained vertical load for serviceability analysis is 18.4 k/ft. It is to be supported on a continu-ous footing made of 2,500 lb/in2 concrete and 40 k/in2 steel. The soil has an allowable bearing pressure for bearing capacity of 6,700 lb/ft2 (using ASD methods) and an allowable bearing pressure for settlement of 4,000 lb/ft2 . The groundwater table is at a great depth. The localbuilding code requires that the bottom of this footing be at least 24 in below the ground surface.Determine the required footing, width, thickness, and design the lateral and longitudinal steel.Show your design in a sketch.
A 12 in wide concrete block wall carries an unfactored vertical design load of 25.1 k/ft. The
sustained vertical load for serviceability analysis is 18.4 k/ft. It is to be supported on a continu-
ous footing made of 2,500 lb/in2
concrete and 40 k/in2
steel. The soil has an allowable bearing
pressure for bearing capacity of 6,700 lb/ft2
(using ASD methods) and an allowable bearing
pressure for settlement of 4,000 lb/ft2
. The groundwater table is at a great depth. The local
building code requires that the bottom of this footing be at least 24 in below the ground surface.
Determine the required footing, width, thickness, and design the lateral and longitudinal steel.
Show your design in a sketch.
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