Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 | Page 6

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 10
|18,000|1.64|0.41|1.44|0.38|0.395||18,000 |2.10|0.43|2.09|0.46|0.445 11
|20,000|1.68|0.45|1.49|0.43|0.440||20,000 |2.13|0.46|2.14|0.51|0.485 12
|22,000|1.72|0.49|1.54|0.48|0.485||22,000 |2.20|0.53|2.20|0.57|0.550 13
|24,000|1.78|0.55|1.58|0.52|0.535||24,000 |2.26|0.59|2.26|0.63|0.610 14
|26,000|1.82|0.59|1.64|0.58|0.585||26,000 |2.31|0.64|2.32|0.69|0.665 15
|28,000|1.88|0.65|1.68|0.62|0.635||28,000 |2.38|0.71|2.40|0.77|0.740 16
|30,000|1.92|0.69|1.73|0.67|0.680||30,000 |2.42|0.75|2.47|0.84|0.795 17
|32,000|1.97|0.74|1.79|0.73|0.735||32,000 |2.49|0.82|2.55|0.92|0.870 18
|34,000|2.02|0.79|1.85|0.79|0.790||34,000 |2.58|0.91|2.62|0.99|0.950 19
|36,000|2.07|0.84|1.90|0.84|0.840|| 20 |38,000|2.13|0.90|1.97|0.91|0.915||
21 |40,000|2.20|0.97|2.03|0.97|0.970|| 22
|42,000|2.27|1.04|2.11|1.05|1.045|| 23 |44,000|2.37|1.14|2.21|1.15|1.145||
|| 39,100 lb. First Crack; ||22,000 lb. First Crack; 45,130 lb. Failed.
||35,190 lb. Failed. || At Elastic Limit: Load, 24,000 lb.; ||At Elastic
Limit: Load, 21,000 lb.; deflection, 0.535 in.; || deflection, 0.515 in.; S
3,608 lb. || S, 3,054 lb. || Maximum: Load, 45,130 lb.; ||Maximum:
Load, 35,190 lb.; deflection,.....; || deflection,.....; S 6,785 lb. || S 5,120
lb. || E = 1,489,000 lb. || E = 1,288,000 lb.
===================================================
=======================
TABLE 4.--(Continued.)--LOAD AND DEFLECTION LOG. BEAM
IV.
Columns in table:
A: Load, in pounds. B: Reading. C: Total deflection. D: Mean total
deflection.
Date: February 16th, 1909. Date: February 10th, 1909. l = 12 ft.; l = 12
ft.; b (mean) = 6.0 in.; b (mean) = 6.12 in.; h (mean) = 15.43 in.; h
(mean) = 15.87 in.; c = 7.71 in. c = 7.93 in. Time = 30 min.
===================================================
====================== | P | DEFLECTION, IN INCHES. || P |

DEFLECTION, IN INCHES.
No.+------+----+----+----+----+-----++---------+----+----+----+----+----- |
A | B | C | B | C | D || A | B | C | B | C | D
---+------+----+----+----+----+-----++---------+----+----+----+----+----- 1 |
0 |2.28| 0 |2.05| 0 | 0 || 0 |1.44| 0 |1.58| 0 | 0 2 |
2,000|2.31|0.03|2.10|0.05|0.040|| 2,000 |1.50|0.06|1.64|0.06|0.06 3 |
4,000|2,34|0.06|2.14|0.09|0.075|| 4,000 |1.55|0.11|1.70|0.12|0.115 4 |
6,000|2.40|0.12|2.19|0.14|0.130|| 6,000 |1.62|0.18|1.76|0.18|0.180 5 |
8,000|2.43|0.15|2.23|0.18|0.165|| 8,000 |1.68|0.24|1.82|0.24|0.240 6
|10,000|2.47|0.19|2.28|0.23|0.210||10,000 |1.72|0.28|1.89|0.31|0.295 7
|12,000|2.51|0.23|2.32|0.27|0.250||12,000 |1.80|0.36|1.94|0.36|0.360 8
|14,000|2.54|0.26|2.37|0.32|0.290||14,000 |1.85|0.41|2.00|0.42|0.415 9
|16,000|2.59|0.31|2.41|0.36|0.335||16,000 |1.90|0.46|2.06|0.48|0.470 10
|18,000|2.62|0.34|2.45|0.40|0.370||18,000 |1.98|0.54|2.13|0.55|0.545 11
|20,000|2.68|0.40|2.50|0.45|0.425||20,000 |2.03|0.59|2.19|0.61|0.600 12
|22,000|2.72|0.44|2.54|0.49|0.465||22,000 |2.09|0.65|2.25|0.67|0.660 13
|24,000|2.78|0.50|2.60|0.55|0.525||24,000 |2.15|0.71|2.33|0.75|0.730 14
|26,000|2.82|0.54|2.65|0.60|0.570||26,000 |2.23|0.79|2.42|0.84|0.815 15
|28,000|2.87|0.59|2.69|0.64|0.615||28,000 |2.32|0.88|2.49|0.91|0.895 16
|30,000|2.91|0.63|2.74|0.69|0.660||30,000 |2.42|0.98|2.62|1.04|1.010 17
|32,000|2.97|0.69|2.78|0.73|0.710||32,000 |2.56|1.12|2.74|1.16|1.140 18
|34,000|3.01|0.73|2.85|0.80|0.765||34,000 |2.67|1.23|2.87|1.29|1.265 19
|36,000|3.07|0.79|2.90|0.85|0.820|| 20 |38,000|3.14|0.86|2.98|0.93|0.895||
|| 34,000 lb. First Crack; ||28,360 lb. Cracked; 38,425 lb. Failed.
||35,500 lb, Failed. || At Elastic Limit: Load, 22,000 lb.; ||At Elastic
Limit: Load, 22,000 lb.; deflection, 0.465 in.; || deflection, 0.66 in.; S
3,320 lb. || S, 3,090 lb. || Maximum: Load, 38,425 lb.; ||Maximum:
Load, 35,500 lb.; deflection,.....; || deflection,.....; S 5,810 lb. || S 4,983
lb. || E = 1,601,000 lb. || E = 1,017,000 lb.
===================================================
=======================
TABLE 4.--(Continued.)--LOAD AND DEFLECTION LOG. BEAM
V.
Columns in table:

A: Load, in pounds. B: Reading. C: Total deflection. D: Mean total
deflection.
Date: -- Date: February 27th, 1909. l = 12 ft.; l = 12 ft.; b (mean) = 6 in.;
b (mean) = 6 in.; h (mean) = 16 in.; h (mean) = 15.87 in.; c = 8 in. c =
7.94 in. Time = 40 min.
===================================================
====================== | P | DEFLECTION, IN INCHES. || P |
DEFLECTION, IN INCHES.
No.+------+----+----+----+----+-----++---------+----+----+----+----+----- |
A | B | C | B | C | D || A | B | C | B | C | D
---+------+----+----+----+----+-----++---------+----+----+----+----+----- 1 |
0 |1.97| 0 |1.37| 0 | 0 || 0 |1.31| 0 |1.25| 0 | 0 2 |
2,000|2.01|0.04|1.40|0.03|0.035|| 2,000 |1.37|0.06|1.31|0.06|0.06 3 |
4,000|2.06|0.09|1.43|0.06|0.075|| 4,000 |1.41|0.10|0.36|0.11|0.105 4 |
6,000|2.08|0.11|1.47|0.10|0.105|| 6,000 |1.46|0.15|0.40|0.15|0.150 5 |
8,000|2.11|0.14|1.50|0.13|0.135|| 8,000 |1.49|0.18|0.45|0.20|0.190 6
|10,000|2.16|0.19|1.54|0.17|0.180||10,000 |1.54|0.23|1.49|0.24|0.235 7
|12,000|2.19|0.22|1.57|0.20|0.210||12,000 |1.58|0.27|1.53|0.28|0.275 8
|14,000|2.22|0.25|1.61|0.24|0.245||14,000 |1.62|0.31|1.57|0.32|0.315 9
|16,000|2.25|0.28|1.65|0.28|0.280||16,000 |1.68|0.37|1.65|0.40|0.385 10
|18,000|2.29|0.32|1,69|0.32|0.320||18,000 |1.78|0.41|1.71|0.46|0.435 11
|20,000|2.32|0.35|1.73|0.36|0.355||20,000 |1.99|0.68|1.97|0.72|0.700 12
|22,000|2.36|0.39|1.78|0.41|0.400|| 13 |24,000|2.39|0.42|1.83|0.46|0.440||
14 |26,000|2.42|0.45|1.85|0.48|0.465|| 15
|28,000|2.47|0.50|1.90|0.53|0.515|| 16 |30,000|2.50|0.53|1.95|0.58|0.565||
17 |32,000|2.54|0.57|1.99|0.62|0.595|| 18
|34,000|2.59|0.62|2.04|0.67|0.645|| 19 |36,000|2.63|0.66|2.09|0.72|0.690||
20 |38,000|2.68|0.71|2.17|0.80|0.755|| 21
|40,000|2.73|0.76|2.21|0.84|0.800|| 22 |42,000|2.80|0.83|2.30|0.93|0.880||
23 |44,000|2.90|0.93|2.40|1.03|0.980|| || 25,000 lb. Slight Crack; ||20,000
lb. First Crack; 47,000 lb. Failed. ||22,050 lb. Failed. || At Elastic Limit:
Load, 22,000 lb.; ||At Elastic Limit: Load, 14,000 lb.; deflection, 0.40
in.; || deflection, 0.315 in.; S, 3,090 lb. || S, 1,998 lb. || Maximum: Load,
47,000 lb.; ||Maximum: Load, 22,050 lb.; deflection,.......; ||
deflection,.......; S, 6,610 lb. || S, 3,145 lb. || E = 1,670,000 lb. || E =

1,382,000 lb.
===================================================
======================
TABLE 4.--(Continued.)--LOAD AND DEFLECTION LOG. BEAM
VI.
Columns in table:
A: Load, in pounds. B: Reading. C: Total deflection. D: Mean total
deflection.
Date: February 12th, 1909. Date: February 13th, 1909. l = 12 ft.; l = 12
ft.; b (mean) = 5.5 in.; b (mean) = 5.87 in.; h (mean) = 15.75 in.; h
(mean) = 15.62 in.; c = 7.88 in. c = 7.81 in. Time = 40 min.
===================================================
====================== | P | DEFLECTION, IN INCHES. || P |
DEFLECTION, IN INCHES.
No.+------+----+----+----+----+-----++---------+----+----+----+----+----- |
A | B | C | B | C | D || A | B | C | B | C | D
---+------+----+----+----+----+-----++---------+----+----+----+----+----- 1 |
0