Column
A pillar or post, usually made either round or rectangular in form, and employed as supports for roofs, entablatures, or other superstructures. The members of a column are capital, shaft, and base, with an abacus for the capital, and sometimes a plinth for the base.
Columns are of wood, stone, cast iron, malleable iron, and steel. Made of the latter they are now constructed in segments, riveted together, and shipped as promptly as cast iron ones are made in the foundry. The change from cast-iron to steel has seriously affected the architectural foundry interests and many firms are at present suffering severely on account of the innovation. The following table shows the weight of one foot in length of square columns one inch thick, and the number of inches contained in end section of each column, by which means the weight of one lineal foot of any other casting answering to the total inches given is obtained at once. Dim. of col. in inches. 6X6 7X7 8X8 9X9 10X10 11X11 12X12 13X13 14X14 15X15 Weight of 1 foot in lbs. 63 75 87 100 113 125 138 150 163 174 No. of inches con. in sec. 20 24 28 32 36 40 44 48 52 56 Dim. of col. in inches. 16X16 17X17 18X18 19X19 20X20 21X21 22X22 23X23 24X24 Weight of 1 foot in lbs. 187 200 213 225 238 250 263 275 288 No. of inches con. in sec. 60 64 68 72 76 80 84 88 92 TABLE SHOWING THE WEIGHT IN POUNDS OF ONE LINEAL FOOT OF ROUND COLUMNS ONE INCH THICK.
Outside diam. of column in in. 4 6 8 10 12 14 16 18 20 22 24 Weight of on ft. in length in lbs. 30 49 69 89 108 128 148 167 187 206 226