148 



CAMBBJA STEEL. 



SAFE LOADS IN POUNDS UNIFORMLY DIS- 

 TRIBUTED FOR CAMBRIA ANGLES. 



UNEQUAL LEGS. 



NEUTRAL AXIS PARALLEL TO LONG LEG. 



Safe loads below are figured for fibre stress of 16 000 pounds 

 per square inch and include weight of angle. 



Distance between 



supports in 



feet. 



Section No. A 135. 



5" x 4" 



11.0 



Ibs. 

 per ft. 



12.8 



Ibs. 

 per ft. 



14.5 



Ibs. 

 per ft. 



A" 



16.2 



Ibs. 

 per ft. 



Ibs. 

 per ft. 



tt" 



19.5 



Ibs. 

 per ft. 



11 

 12 

 13 

 14 

 15 



16 



8370 

 5580 

 4180 

 3350 



2790 

 2390 



1670 

 1520 



9630 

 6420 

 4810 

 3850 



3210 

 2750 

 2410 

 2140 



1750 



10860 

 7240 

 5430 



3100 

 2710 

 2410 

 2170 



1970 



12050 

 8030 



3440 

 3010 



2410 

 2190 



13220 

 8810 

 6610 

 5290 



4410 

 3780 

 3300 

 2940 

 2640 



2400 



14360 

 9570 

 7180 

 5740 



4790 

 4100 

 3590 

 3190 

 2870 



1390 

 1290 

 1200 

 1120 



1050 



1600 

 1480 



1280 

 1200 



1810 

 1670 

 1550 

 1450 



1360 



2010 

 1850 

 1720 

 1610 



1510 



2200 

 2030 

 1890 

 1760 



1650 



2390 

 2210 

 2050 

 1910 



1790 



Distance 

 between 

 sup- 

 ports 

 in feet. 



7 



8 



9 



10 



11 

 12 

 13 

 14 



Section No. A 105. 



6" x 3*" 



11.7 



Ibs. 

 per 



ft. per 



6570 

 4380 

 3280 

 2630 



2190 

 1880 

 1640 

 1460 

 1310 



1190 

 1090 

 1010 



13-5 



18.9 



15.3 



Ibs. 

 ft. per ft. per ft. per ft 



7550 

 5030 

 3770 

 3020 



2520 

 2160 

 1890 

 1680 

 1510 



1370 

 1260 

 1160 



8500 

 5670 

 4250 

 3400 



2830 

 2430 

 2120 

 1890 

 1700 



1550 

 1420 

 1310 

 1210 



A" 



17.1 



Ibs. 



9430 

 6290 

 4720 

 3770 



3140 

 2690 

 2360 

 2100 

 1890 



1710 

 1570 

 1450 

 1350 



Ibs. 



10340 

 6890 

 5170 

 4140 



3450 

 2950 

 2580 

 2300 

 2070 



1720 

 1590 

 1480 



ft" 



20.6 



24.0 



Ibs. 

 per ft. per ft. per ft. 



Ibs. 



11230 

 7480 

 5610 

 4490 



3740 

 3210 

 2810 

 2490 

 2250 



2040 

 1870 

 1730 

 1600 



f" 



22.4 



Ibs. 



12100 

 8070 

 6050 

 4840 



4030 

 3460 

 3020 

 2690 



2020 

 1860 

 1730 



12960 

 8640 

 6480 

 5180 



4320 

 3700 

 3240 



2160 

 1990 

 1850 



" it" 1 



25.7 



Ibs. 

 per ft. 



13800 

 9200 

 6900 

 5520 



4600 

 3940 

 3450 

 3070 

 2760 



2510 

 2300 

 2120 

 1970 



27.3 



Ibs. 



per ft. per ft 



14640 

 9760 

 7320 

 5850 



4180 

 3660 

 3250 



2660 

 2440 

 2250 



28.9 



Ibs. 



15470 

 10310 

 7730 

 6190 



5160 

 4420 

 3870 

 3440 



2810 

 2580 



2210 



For safe loads below heavy lines the deflections will be greater than the 

 allowable limit for plastered ceilings = s for span. 



