Tests of large bridge columns. . 7 28 29 30 119 000 595 000 1 190 000 1000 5000 10 000 15 000 20 00025 00030 000 0 + .0003 0 + .0004 0 0 0+ .0001 1 785 000 2 380 000 +.0013 +.0013 +.0003 +.0001 2 975 000 3 570 000 +.0030 +.0027 + .0007+ .0008 +.0004+.0006 Load,pounds 119 000 595 000 1 190 000 1 785 000 2 380 000 2 975 000 3 570 000 Load inpounds persquare inch 1000 5000 10 00
Tests of large bridge columns. . 7 28 29 30 119 000 595 000 1 190 000 1000 5000 10 000 15 000 20 00025 00030 000 0 + .0003 0 + .0004 0 0 0+ .0001 1 785 000 2 380 000 +.0013 +.0013 +.0003 +.0001 2 975 000 3 570 000 +.0030 +.0027 + .0007+ .0008 +.0004+.0006 Load,pounds 119 000 595 000 1 190 000 1 785 000 2 380 000 2 975 000 3 570 000 Load inpounds persquare inch 1000 5000 10 000 15 000 20 00025 00030 000 31 a- Failure commenced. First deflection. Buckled east 4 Maximum load. Held for several Load fell off gradually to this value. Note.—Stations 1 to 4, inclusive, give compressions in inches in gauge length of 80 inches. Other stationsgive (±) elongations in a gauge length of 8 inches. Tests of Large Bridge Columns 61 // 7w 7«? I II <- ^ II-* /2. • 2/ • ^2 r
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Keywords: ., bookauthorbraggjg, bookcentury1900, bookdecade1910, bookpublisher
