. Water & sewage works . SPRINGFIELD, MO., November, Sewage disposal plant; filter bed ready for filling withbroken stone. 460 MUNICIPAL ENGINEERING. SPRINGFIELD, MO., sewage disposal plant. Completed grit chamber, uilh settling tanks on either side. water pressure from within, but also theearth pressure from without when thetank is below the ground and shell of the serai-circular segmentsis 12 inches thick, reinforced verticallywith %-inch bars spaced 3 feet centersand circumferentially with %-inchsquare bars spaced so that the unitstress does not exceed pounds persquar
. Water & sewage works . SPRINGFIELD, MO., November, Sewage disposal plant; filter bed ready for filling withbroken stone. 460 MUNICIPAL ENGINEERING. SPRINGFIELD, MO., sewage disposal plant. Completed grit chamber, uilh settling tanks on either side. water pressure from within, but also theearth pressure from without when thetank is below the ground and shell of the serai-circular segmentsis 12 inches thick, reinforced verticallywith %-inch bars spaced 3 feet centersand circumferentially with %-inchsquare bars spaced so that the unitstress does not exceed pounds persquare incli. The unbalanced tension atthe point where the semi-circular seg-ments intersect is taken up by 114-inchcircular rods embedded in concretestruts. The steel reinforcement in these tiesis designed to resist the tensile forcesat the same unit stress as the circum-ferential reinforcement in the shell. Ifthis is not done, and different stressesare used for the tie rods than are usedfor the shell, the shell, instead of beingsubjected to simple tension, will be sub-jected to bending. The tie rods arefastened to a steel plate 8 inches ^s-inch
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectsewerage, bookyear191
