0|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 |1.22| 0 |1.30| 0 | 0 || 0 |1.28| 0 |1.30| 0 | 0
2 | 2,000|1.26|0.04|1.34|0.04|0.04 || 2,000 |1.30|0.02|1.35|0.05|0.035
3 | 4,000|1.29|0.07|1.38|0.08|0.075|| 4,000 |1.36|0.08|1.39|0.09|0.085
4 | 6,000|1.33|0.11|1.42|0.12|0.115|| 6,000 |1.40|0.12|1.44|0.14|0.130
5 | 8,000|1.37|0.15|1.47|0.17|0.160|| 8,000 |1.43|0.15|1.47|0.17|0.160
6 |10,000|1.42|0.20|1.51|0.21|0.205||10,000 |1.47|0.19|1.51|0.21|0.200
7 |12,000|1.45|0.23|1.55|0.25|0.240||12,000 |1.51|0.23|1.56|0.26|0.245
8 |14,000|1.50|0.28|1.59|0.29|0.285||14,000 |1.55|0.27|1.60|0.30|0.285
9 |16,000|1.54|0.32|1.63|0.33|0.325||16,000 |1.59|0.31|1.64|0.34|0.325
10 |18,000|1.58|0.36|1.68|0.38|0.370||18,000 |1.62|0.34|1.69|0.39|0.365
11 |20,000|1.61|0.39|1.72
|