Tests of large bridge columns. . 0 COO Load in Load,pounds pounds persquare inch 15 16 17 18 19 20 21 22 23 24 76 260 1000 0 0 0 0 0 0 0 0 0 0 762 600 10 000 -. 0024 + .0011 1 525 200, 20 000 -. 0042 — .0068 -. 0052 + .0020 2 287 800j 30 000 (c) -. 0089 +.0030 3 050 400 40 000 -. 0142 +.0045 o Scaling freely. b Maximum deflection Ys inch to east. c Center web buckling. Colu
Tests of large bridge columns. . 0 COO Load in Load,pounds pounds persquare inch 15 16 17 18 19 20 21 22 23 24 76 260 1000 0 0 0 0 0 0 0 0 0 0 762 600 10 000 -. 0024 + .0011 1 525 200, 20 000 -. 0042 — .0068 -. 0052 + .0020 2 287 800j 30 000 (c) -. 0089 +.0030 3 050 400 40 000 -. 0142 +.0045 o Scaling freely. b Maximum deflection Ys inch to east. c Center web buckling. Column deflects to north. Deflection to east disappearing. d Maximum load. Deflection, 5 inches to north at 3 430 000. « Movement beyond range of gauge. NOTE.—Stations 1 to 4, inclusive, give compressions in inches in gauge length of 80 inches. Stations 15to 22 give compressions in inches in gauge length of 16 inches. Stations 23 and 24 give (±) elongationsin inches in gauge length of 8 inches. Tests of Large Bridge Columns 45. \% 17 *p i ? ^ ! U • i : 1 ! V 1 * rs zo 19 ii i 1 r •* TT T Soufh >—*
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