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. ============================================================
==============
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. ============================================================
==============
[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