Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 / Tests of Creosoted Timber, Paper No. 1168

by W. B. Gregory

TABLE 4.—Load and Deflection Log. Beam I.

Date: February 26th, 1909. l = 12 ft.; b (mean) = 6-9/32 in.; h (mean) = 15-15/16 in.; c = 7.97 in. Time = 1 hour.							Date: February 24th, 1909. l = 12 ft.; b (mean) = 6 in.; h (mean) = 15.69 in.; c = 7.84 in.
No.	P	Deflection, in Inches.					P	Deflection, in Inches.
	Load, in pounds.	Reading.	Total deflection.	Reading.	Total deflection.	Mean total deflection.	Load, in pounds.	Reading.	Total deflection.	Reading.	Total deflection.	Mean total deflection.
1	0	1.86	0	1.88	0	0	0	1.83	0	1.86	0	0
2	2,000	1.92	0.05	1.90	0.02	0.035	2,000	1.87	0.04	1.90	0.04	0.04
3	4,000	1.96	0.10	1.94	0.06	0.080	4,000	1.91	0.08	1.96	0.10	0.090
4	6,000	1.99	0.13	1.98	0.10	0.115	6,000	1.96	0.13	2.00	0.14	0.135
5	8,000	2.03	0.17	2.02	0.14	0.155	8,000	2.00	0.17	2.04	0.18	0.175
6	10,000	2.05	0.19	2.06	0.18	0.185	10,000	2.04	0.21	2.08	0.22	0.215
7	12,000	2.10	0.24	2.09	0.21	0.225	12,000	2.09	0.26	2.13	0.27	0.265
8	14,000	2.13	0.27	2.13	0.25	0.260	14,000	2.14	0.31	2.18	0.32	0.315
9	16,000	2.17	0.31	2.16	0.28	0.295	16,000	2.19	0.36	2.23	0.37	0.365
10	18,000	2.20	0.34	2.20	0.32	0.330	18,000	2.24	0.41	2.28	0.42	0.415
11	20,000	2.24	0.36	2.25	0.37	0.365	20,000	2.29	0.46	2.33	0.47	0.465
12	22,000	2.28	0.42	2.28	0.40	0.410	22,000	2.34	0.51	2.39	0.53	0.520
13	24,000	2.32	0.46	2.32	0.44	0.450	24,000	2.39	0.56	2.43	0.57	0.565
14	26,000	2.36	0.50	2.36	0.48	0.490	26,000	2.44	0.61	2.48	0.62	0.615
15	28,000	2.40	0.54	2.39	0.51	0.525	28,000	2.49	0.66	2.53	0.67	0.685
16	30,000	2.43	0.57	2.44	0.56	0.565	30,000	2.55	0.72	2.58	0.72	0.720
17	32,000	2.48	0.62	2.48	0.60	0.610	32,000	2.61	0.78	2.65	0.79	0.785
18	34,000	2.52	0.68	2.53	0.65	0.655	34,000[B]	2.68	0.85	2.70	0.84	0.845
19	36,000	2.56	0.70	2.56	0.68	0.690	36,000	2.74	0.91	2.78	0.92	0.915
20	38,000	2.61	0.75	2.62	0.74	0.745	38,000	Broke.
21	40,000	2.65	0.79	2.67	0.79	0.790
22	42,000	2.70	0.84	2.73	0.85	0.845
23	44,000	2.75	0.89	2.77	0.89	0.890
37,500 lb., First Crack; 45,900 lb., Failed.
At Elastic Limit: Load, 22,000 lb.; deflection, 0.41 in.; S, 2,975 lb.							At Elastic Limit: Load, 20,000 lb.; deflection, 0.465 in.; S, 2,975 lb.
Maximum: Load, 45,900 lb.; deflection,.....; S, 6,209 lb.							Maximum: Load, 38,000 lb.; deflection,.....; S, 5,540 lb.
E = 1,575,000 lb.							E = 1,383,000 lb.

[B] First crack.

TABLE 4.—(Continued.)—Load and Deflection Log. Beam II.

Date: February 20th, 1909. l = 12 ft.; b (mean) = 6.38 in.; h (mean) = 15.81 in.; c = 7.91 in. Time = 47.5 min							Date: — l = 12 ft.; b (mean) = 6.41 in.; h (mean) = 16.41 in.; c = 8.20 in.
No.	P	Deflection, in Inches.					P	Deflection, in Inches.
	Load, in pounds.	Reading.	Total deflection.	Reading.	Total deflection.	Mean total deflection.	Load, in pounds.	Reading.	Total deflection.	Reading.	Total deflection.	Mean total deflection.
1	0	1.65	0	1.68	0	0	0	1.86	0	1.87	0	0
2	2,000	1.69	0.04	1.72	0.04	0.040	2,000	1.91	0.05	1.92	0.05	0.05
3	4,000	1.73	0.08	1.77	0.09	0.085	4,000	1.98	0.12	1.98	0.11	0.115
4	6,000	1.76	0.11	1.80	0.12	0.115	6,000	2.05	0.19	2.02	0.15	0.170
5	8,000	1.80	0.15	1.83	0.15	0.150	8,000	2.07	0.21	2.08	0.21	0.210
6	10,000	1.83	0.18	1.86	0.18	0.180	10,000	2.13	0.27	2.13	0.26	0.265
7	12,000	1.87	0.22	1.90	0.22	0.220	12,000	2.18	0.32	2.18	0.31	0.315
8	14,000	1.91	0.26	1.94	0.26	0.260	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.; deflection, 0.38 in.; S, 2,722 lb.							At Elastic Limit: Load, 16,000 lb.; deflection, 0.43 in.; S, 1,999 lb.
Maximum: Load, 43,450 lb.; deflection,.....; S, 5,918 lb.							Maximum: Load, 25,040 lb.; deflection,.....; S, 3,130 lb.
E = 1,562,000 lb.							E = 979,000 lb.

[C] First crack.

TABLE 4.—(Continued.)—Load and Deflection Log. Beam III.

Date: February 13th, 1909. l = 12 ft.; b (mean) = 5.88 in.; h (mean) = 15.63 in.; c = 7.82 in.							Date: — l = 12 ft.; b (mean) = 5.88 in.; h (mean) = 15.9 in.; c = 7.95 in. Time = 45 min.
No.	P	Deflection, in Inches.					P	Deflection, in Inches.
	Load, in pounds.	Reading.	Total deflection.	Reading.	Total deflection.	Mean total deflection.	Load, in pounds.	Reading.	Total deflection.	Reading.	Total deflection.	Mean total deflection.
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; 45,130 lb. Failed.							22,000 lb. First Crack; 35,190 lb. Failed.
At Elastic Limit: Load, 24,000 lb.; deflection, 0.535 in.; S 3,608 lb.							At Elastic Limit: Load, 21,000 lb.; deflection, 0.515 in.; S, 3,054 lb.
Maximum: Load, 45,130 lb.; deflection,.....; S 6,785 lb.							Maximum: Load, 35,190 lb.; deflection,.....; S 5,120 lb.
E = 1,489,000 lb.							E = 1,288,000 lb.

TABLE 4.—(Continued.)—Load and Deflection Log. Beam IV.

Date: February 16th, 1909. l = 12 ft.; b (mean) = 6.0 in.; h (mean) = 15.43 in.; c = 7.71 in.							Date: February 10th, 1909. l = 12 ft.; b (mean) = 6.12 in.; h (mean) = 15.87 in.; c = 7.93 in. Time = 30 min.
No.	P	Deflection, in Inches.					P	Deflection, in Inches.
	Load, in pounds.	Reading.	Total deflection.	Reading.	Total deflection.	Mean total deflection.	Load, in pounds.	Reading.	Total deflection.	Reading.	Total deflection.	Mean total deflection.
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; 38,425 lb. Failed.							28,360 lb. Cracked; 35,500 lb, Failed.
At Elastic Limit: Load, 22,000 lb.; deflection, 0.465 in.; S 3,320 lb.							At Elastic Limit: Load, 22,000 lb.; deflection, 0.66 in.; S, 3,090 lb.
Maximum: Load, 38,425 lb.; deflection,.....; S 5,810 lb.							Maximum: Load, 35,500 lb.; deflection,.....; S 4,983 lb.
E = 1,601,000 lb.							E = 1,017,000 lb.

TABLE 4.—(Continued.)—Load and Deflection Log. Beam V.

Date: — l = 12 ft.; b (mean) = 6 in.; h (mean) = 16 in.; c = 8 in. Time = 40 min.							Date: February 27th, 1909. l = 12 ft.; b (mean) = 6 in.; h (mean) = 15.87 in.; c = 7.94 in.
No.	P	Deflection, in Inches.					P	Deflection, in Inches.
	Load, in pounds.	Reading.	Total deflection.	Reading.	Total deflection.	Mean total deflection.	Load, in pounds.	Reading.	Total deflection.	Reading.	Total deflection.	Mean total deflection.
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; 47,000 lb. Failed.							20,000 lb. First Crack; 22,050 lb. Failed.
At Elastic Limit: Load, 22,000 lb.; deflection, 0.40 in.; S, 3,090 lb.							At Elastic Limit: Load, 14,000 lb.; deflection, 0.315 in.; S, 1,998 lb.
Maximum: Load, 47,000 lb.; deflection,.......; S, 6,610 lb.							Maximum: Load, 22,050 lb.; deflection,.......; S, 3,145 lb.
E = 1,670,000 lb.							E = 1,382,000 lb.

TABLE 4.—(Continued.)—Load and Deflection Log. Beam VI.

Date: February 12th, 1909. l = 12 ft.; b (mean) = 5.5 in.; h (mean) = 15.75 in.; c = 7.88 in. Time = 40 min.							Date: February 13th, 1909. l = 12 ft.; b (mean) = 5.87 in.; h (mean) = 15.62 in.; c = 7.81 in.
No.	P	Deflection, in Inches.					P	Deflection, in Inches.
	Load, in pounds.	Reading.	Total deflection.	Reading.	Total deflection.	Mean total deflection.	Load, in pounds.	Reading.	Total deflection.	Reading.	Total deflection.	Mean total deflection.
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	0.42	0.405	20,000	1.66	0.38	1.74	0.44	0.410
12	22,000	1.66	0.44	1.76	0.46	0.450	22,000	1.71	0.43	1.80	0.50	0.465
13	24,000	1.81	0.59	1.81	0.51	0.550	24,000	1.77	0.49	1.84	0.54	0.515
14	26,000	1.86	0.64	1.86	0.56	0.600	26,000	1.83	0.55	1.90	0.60	0.575
15	28,000	1.91	0.69	1.91	0.61	0.650	28,000	1.90	0.62	1.97	0.67	0.645
16	30,000	1.96	0.74	1.96	0.66	0.700	30,000	1.97	0.69	2.02	0.72	0.705
17	32,000	2.00	0.78	2.02	0.72	0.750	32,000	2.12	0.84	2.10	0.80	0.820
18	34,000	2.04	0.82	2.11	0.81	0.815	34,000	2.20	0.92	2.16	0.86	0.885
19	36,000	2.10	0.88	2.20	0.90	0.890	36,000	2.29	1.01	2.24	0.94	0.975
20	38,000	2.16	0.94	2.25	0.95	0.945	38,000	2.39	1.11	2.32	1.02	1.065
21	40,000	2.28	1.06	2.38	1.08	1.070
22	42,000	2.38	1.16	2.42	1.12	1.140
23	44,000	2.44	1.22	2.52	1.22	1.220
24	46,000	2.53	1.31	2.60	1.30	1.305
25	48,000	2.66	1.44	2.71	1.41	1.425
26	50,000	2.78	1.56	2.87	1.57	1.565
33,000 lb., First Crack; 51,330 lb., Failed.							24,000 lb., First Crack; 44,000 lb., Failed.
At Elastic Limit: Load, 22,000 lb.; deflection, 0.45 in.; S, 3,484 lb.							At Elastic Limit: Load, 20,000 lb.; deflection, 0.41 in.; S, 3,018 lb.
Maximum: Load, 51,330 lb.; deflection,.....; S, 8,925 lb.							Maximum: Load, 44,000 lb.; deflection,.....; S, 6,627 lb.
E = 1,695,000 lb.							E = 1,625,000 lb.

TABLE 4.—(Continued.)—Load and Deflection Log. Beam VII.

Date: March 2d, 1909. l = 12 ft.; b (mean) = 6.56 in.; h (mean) = 15.62 in.; c = 7.81 in. Time = 1 hr.							Date: February 20th, 1909. l = 12 ft.; b (mean) = 6.22 in.; h (mean) = 15.62 in.; c = 7.81 in. Time = 33 min.
No.	P	Deflection, in Inches.					P	Deflection, in Inches.
	Load, in pounds.	Reading.	Total deflection.	Reading.	Total deflection.	Mean total deflection.	Load, in pounds.	Reading.	Total deflection.	Reading.	Total deflection.	Mean total deflection.
1	0	1.84	0	1.71	0	0	0	1.69	0	1.73	0	0
2	2,000	1.88	0.04	1.74	0.03	0.035	2,000	1.72	0.03	1.77	0.04	0.035
3	4,000	1.92	0.08	1.79	0.08	0.080	4,000	1.76	0.07	1.80	0.07	0.070
4	6,000	1.96	0.12	1.81	0.10	0.110	6,000	1.80	0.11	1.84	0.11	0.110
5	8,000	2.00	0.16	1.85	0.14	0.150	8,000	1.84	0.15	1.87	0.14	0.145
6	10,000	2.03	0.19	1.89	0.18	0.185	10,000	1.88	0.19	1.92	0.19	0.190
7	12,000	2.06	0.22	1.93	0.22	0.220	12,000	1.91	0.22	1.95	0.22	0.220
8	14,000	2.11	0.27	1.95	0.24	0.255	14,000	1.95	0.26	2.00	0.27	0.265
9	16,000	2.14	0.30	1.99	0.28	0.290	16,000	1.99	0.30	2.03	0.30	0.300
10	18,000	2.18	0.34	2.03	0.32	0.330	18,000	2.03	0.34	2.06	0.33	0.335
11	20,000	2.22	0.38	2.05	0.34	0.360	20,000	2.07	0.38	2.11	0.38	0.380
12	22,000	2.25	0.41	2.10	0.39	0.400	22,000	2.11	0.42	2.16	0.43	0.425
13	24,000	2.29	0.45	2.13	0.42	0.435	24,000	2.15	0.46	2.20	0.47	0.465
14	26,000	2.32	0.48	2.17	0.46	0.470	26,000	2.19	0.50	2.24	0.51	0.505
15	28,000	2.36	0.52	2.21	0.50	0.510	28,000	2.23	0.54	2.28	0.55	0.545
16	30,000	2.40	0.56	2.25	0.54	0.550	30,000	2.27	0.58	2.33	0.60	0.590
17	32,000	2.43	0.59	2.29	0.58	0.585	32,000	2.32	0.63	2.37	0.64	0.635
18	34,000	2.47	0.63	2.32	0.61	0.620	34,000	2.36	0.67	2.42	0.69	0.680
19	36,000	2.51	0.67	2.37	0.66	0.665	36,000
20	38,000	2.56	0.72	2.41	0.70	0.710
27,000 lb., First Crack; 51,900 lb., Failed.							28,000 lb., First Crack; 49,000 lb., Failed.
At Elastic Limit: Load, 34,000 lb.; deflection, 0.62 in.; S, 4,580 lb.							At Elastic Limit: Load, 20,000 lb.; deflection, 0.38 in.; S, 2,845 lb.
Maximum: Load, 51,900 lb.; deflection,.....; S, 6,985 lb.							Maximum: Load, 49,000 lb.; deflection,.....; S, 6,970 lb.
E = 1,637,000 lb.							E = 1,658,000 lb.