Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 eBook

This eBook from the Gutenberg Project consists of approximately 13 pages of information about Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910.

Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 eBook

This eBook from the Gutenberg Project consists of approximately 13 pages of information about Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910.
9 |16,000|1.95|0.30|1.98|0.30|0.300||16,000 |2.30|0.44|2.29|0.42|0.430 10 |18,000|1.98|0.33|2.02|0.34|0.335||18,000[C]|2.35|0.49|2.
35|0.48|0.485 11 |20,000|2.03|0.38|2.06|0.38|0.380||20,000 |2.44|0.58|2.42|0.55|0.565 12 |22,000|2.07|0.42|2.10|0.42|0.420||22,000 |2.54|0.68|2.54|0.67|0.675 13 |24,000|2.11|0.46|2.14|0.46|0.460||25,040 | Failed 14 |26,000|2.15|0.50|2.18|0.50|0.500|| 15 |28,000|2.18|0.53|2.22|0.54|0.535|| 16 |30,000|2.23|0.58|2.26|0.58|0.580|| 17 |32,000|2.27|0.62|2.30|0.62|0.620|| 18 |34,000|2.32|0.67|2.35|0.67|0.670|| 19 |36,000|2.37|0.72|2.40|0.72|0.720|| 20 |38,000|2.42|0.77|2.45|0.77|0.770|| 21 |40,000|2.48|0.83|2.50|0.82|0.825|| 22 |42,000|2.53|0.88|2.56|0.88|0.880|| 23 |43,450| Fracture. || 24 |45,710| Failed. || || At Elastic Limit:  Load, 20,000 lb.; ||At Elastic Limit:  Load, 16,000 lb.; deflection, 0.38 in.; || deflection, 0.43 in.; S, 2,722 lb. || S, 1,999 lb. || Maximum:  Load, 43,450 lb.; ||Maximum:  Load, 25,040 lb.; deflection,.....; || deflection,.....; S, 5,918 lb. || S, 3,130 lb. || E = 1,562,000 lb. || E = 979,000 lb. ============================================================
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[Footnote C:  First crack.]

TABLE 4.—­(Continued.)—­LOAD AND DEFLECTION LOG.  BEAM III.

Columns in table: 

A:  Load, in pounds. 
B:  Reading. 
C:  Total deflection. 
D:  Mean total deflection.

Date:  February 13th, 1909.  Date:  —­ l = 12 ft.; l = 12 ft.; b (mean) = 5.88 in.; b (mean) = 5.88 in.; h (mean) = 15.63 in.; h (mean) = 15.9 in.; c = 7.82 in. c = 7.95 in. 
                                         Time = 45 min.

=======================================================
================== | P | DEFLECTION, IN INCHES. || P | DEFLECTION, IN INCHES.  No.+------+----+----+----+----+-----++---------+----+----+--
--+----+----- | A | B | C | B | C | D || A | B | C | B | C | D ---+------+----+----+----+----+-----++---------+----+----+--
--+----+----- 1 | 0 |1.23| 0 |1.06| 0 | 0 || 0 |1.67| 0 |1.63| 0 | 0 2 | 2,000|1.27| .04|1.10|0.04|0.040|| 2,000 |1.70|0.03|1.68|0.05|0.040 3 | 4,000|1.32|0.09|1.13|0.07|0.080|| 4,000 |1.72|0.05|1.72|0.09|0.070 4 | 6,000|1.37|0.14|1.17|0.11|0.125|| 6,000 |1.82|0.15|1.78|0.15|0.150 5 | 8,000|1.42|0.19|1.22|0.16|0.175|| 8,000 |1.86|0.19|1.82|0.19|0.190 6 |10,000|1.47|0.24|1.26|0.20|0.220||10,000 |1.90|0.23|1.87|0.24|0.235 7 |12,000|1.51|0.28|1.31|0.25|0.265||12,000 |1.97|0.30|1.92|0.29|0.295 8 |14,000|1.55|0.32|1.35|0.29|0.305||14,000 |2.00|0.33|1.98|0.35|0.340 9 |16,000|1.60|0.37|1.40|0.34|0.355||16,000 |2.03|0.36|2.04|0.41|0.385
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Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 from Project Gutenberg. Public domain.