260||14,000 |2.25|0.39|2.24|0.37|0.380
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.
==========================================================================

[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| .