This data shows assumed specifications for each WTC 1 core column at Floor 98 inferred from information available; predicted maximum temperature at 102 minutes for various proportions of FRC removed; demand and capacity; reduction in yield strength at maximum temperature; and demand:capacity ratio (cold and maximum temperature). It should be possible to print all the figures in landscape orientation; there are 25 variables per line, comma separated. Alternatively, adjust text size for best display of data. The CSV records may be imported to a spreadsheet by stripping off the text and HTML coding. See review of results and further discussion in Fires Part Four.
Some variables are self-explanatory. Here is a full list, with further details as necessary.
Column number; yield
strength (ksi); cross-sectional area (ins^2); the nnn weight per
linear foot W14xnnn specification assumed for the column (lb/ft);
cold capacity of the selected member size (tons); cold capacity
based on the calculated demand and NIST published d/c ratios;
width W1 or d as viewed normal to the web and including the short
tf sides of the flanges (ins); width W2 or bf as viewed normal to
a flange; total heat absorbed after 102 minutes for totally
exposed member (MJ); final column temperature with FRC totally
stripped off on all four sides based on total absorption but
without taking into account flame or gas temperature limits (C);
final temp also under fully exposed conditions but imposing an
850C limit; final temp assuming one side or one-quarter of FRC
removed; final temp with FRC fully intact; axial gravity load at
floor 98 (tons); cold capacity of the selected member repeated as
before for comparison with demand; yield strength reduction
factor with all FRC removed; strength reduction factor with one
side or one-quarter of FRC removed; strength reduction factor
with all FRC intact; final column capacity after 102 minutes with
all FRC stripped off (tons); final capacity with three-quarters
of FRC remaining; final capacity with all FRC remaining;
pre-impact cold demand / capacity ratio; final d/c ratio with all
FRC removed; final d/c ratio with one-quarter of FRC removed;
final d/c ratio with all FRC intact.
"column","yield","x-section","w14xNNN","capacity","cap' based","width 1 (d)","width 2 (bf)","total heat","final temp C","ditto, gas","fin tmp, FRC","fin tmp, all", "number","strength","inches sqd","lbs/ft of leng","tons (cold)","on NIST d/c","inches","inches","absrbd(MJ)","no FRC,lim","temp limit","lost 1 side","FRC remng",
"demand","capacity","strngth red","strngth red","strngth red","capacity","capacity","capacity","dem/cap rat","dem/cap rat","dem/cap rat","dem/cap rat" "tons (flr 98)","cold, tons","fctr 0FRC","fctr 3FRC","fctr 4FRC","no FRC","3 sds FRC","4 sds FRC","cold","no FRC, hot","FRC 3 sides","FRC 4 sides"
501,42,75.41,257,1584,1583,16.38,16,588,731,731,369,203,791,1584,0.185,0.87,0.95,293,1378,1505,0.499,2.699,0.574,0.526 502,42,75.41,257,1584,1608,16.38,16,512,695,695,343,203,643,1584,0.225,0.885,0.95,356,1402,1505,0.406,1.804,0.459,0.427 503,42,75.41,257,1584,1608,16.38,16,505,688,688,341,203,643,1584,0.235,0.885,0.95,372,1402,1505,0.406,1.727,0.459,0.427 504,36,56.63,193,1020,989,15.48,15.71,487,787,787,413,243,495,1020,0.135,0.83,0.935,138,847,954,0.485,3.595,0.585,0.519 505,36,56.63,193,1020,989,15.48,15.71,487,787,787,413,243,495,1020,0.135,0.83,0.935,138,847,954,0.485,3.595,0.585,0.519 506,42,75.41,257,1584,1608,16.38,16,503,686,686,340,203,643,1584,0.245,0.885,0.95,388,1402,1505,0.406,1.657,0.459,0.427 507,42,75.41,257,1584,1608,16.38,16,508,691,691,342,203,643,1584,0.235,0.885,0.95,372,1402,1505,0.406,1.727,0.459,0.427 508,42,75.41,257,1584,1583,16.38,16,581,731,731,366,203,791,1584,0.185,0.87,0.95,293,1378,1505,0.499,2.699,0.574,0.526 601,42,35.21,120,740,757,14.48,14.67,453,1132,850,556,317,379,740,0.09,0.545,0.9,67,403,666,0.512,5.691,0.940,0.569 602,36,35.21,120,634,615,14.48,14.67,309,801,801,467,317,308,634,0.125,0.745,0.9,79,472,571,0.486,3.886,0.652,0.540 603,36,35.21,120,634,649,14.48,14.67,295,769,769,458,317,324,634,0.15,0.765,0.9,95,485,634,0.511,3.407,0.668,0.511 604,36,29.05,99,523,516,14.16,14.565,289,898,850,519,354,258,523,0.09,0.635,0.88,47,332,460,0.493,5.481,0.777,0.561 605,36,29.05,99,523,516,14.16,14.565,289,897,850,519,354,258,523,0.09,0.635,0.88,47,332,460,0.493,5.481,0.777,0.561 606,36,35.21,120,634,649,14.48,14.67,293,766,766,457,317,324,634,0.155,0.765,0.9,98,485,571,0.511,3.297,0.668,0.568 607,36,35.21,120,634,615,14.48,14.67,305,793,793,465,317,308,634,0.13,0.75,0.9,82,476,571,0.486,3.737,0.648,0.540 608,42,35.21,120,740,701,14.48,14.67,446,1116,850,552,317,379,740,0.09,0.555,0.9,67,411,666,0.512,5.691,0.923,0.569 701,36,42.55,145,766,792,14.78,15.5,457,960,850,494,289,348,766,0.09,0.69,0.915,69,529,701,0.454,5.048,0.658,0.497 702,36,35.21,120,634,619,14.48,14.67,276,731,731,445,317,310,634,0.185,0.78,0.9,117,495,571,0.489,2.643,0.627,0.543 703,36,24.06,82,433,426,14.31,10.13,222,838,838,498,346,213,433,0.095,0.685,0.88,41,297,381,0.492,5.178,0.718,0.559 704,36,15.55,53,280,271,13.92,8.06,205,1157,850,622,410,135,280,0.09,0.375,0.835,25,105,234,0.482,5.357,1.286,0.577 705,36,15.55,53,280,271,13.92,8.06,199,1127,850,614,410,135,280,0.09,0.39,0.835,25,109,234,0.482,5.357,1.236,0.577 706,36,24.06,82,433,426,14.31,10.13,221,835,835,497,346,213,433,0.1,0.685,0.88,43,297,381,0.492,4.919,0.718,0.559 707,36,35.21,120,634,619,14.48,14.67,273,731,731,443,317,310,634,0.185,0.785,0.9,117,498,571,0.489,2.643,0.623,0.543 708,36,46.65,159,840,871,14.98,15.565,454,879,850,460,273,348,840,0.09,0.76,0.925,76,638,777,0.414,4.603,0.545,0.448 801,36,46.65,159,840,880,14.98,15.565,461,890,850,463,273,387,840,0.09,0.755,0.925,76,634,777,0.461,5.119,0.610,0.498 802,36,38.73,132,697,688,14.66,14.725,276,722,722,417,299,344,697,0.195,0.825,0.91,136,575,634,0.494,2.531,0.598,0.542 803,36,38.73,132,697,726,14.66,14.725,263,696,696,409,299,290,697,0.225,0.835,0.91,157,582,634,0.416,1.849,0.498,0.457 804,36,21.71,74,391,387,14.17,10.07,218,906,850,529,367,194,391,0.09,0.61,0.87,35,239,340,0.496,5.513,0.813,0.570 805,36,24.06,82,433,426,14.31,10.13,221,834,834,497,346,213,433,0.1,0.685,0.88,43,297,381,0.492,4.919,0.718,0.559 806,36,38.73,132,697,688,14.66,14.725,273,716,716,415,299,344,697,0.2,0.83,0.91,139,579,634,0.494,2.468,0.595,0.542 807,36,42.55,145,766,774,14.78,15.5,448,944,850,489,289,387,766,0.09,0.7,0.915,69,536,701,0.505,5.614,0.722,0.552 901,42,42.55,145,894,860,14.78,15.5,468,982,850,500,289,447,894,0.09,0.68,0.915,80,608,818,0.500,5.556,0.735,0.546 902,36,38.73,132,697,727,14.66,14.725,303,731,731,433,299,363,697,0.185,0.8,0.91,129,558,634,0.521,2.815,0.651,0.572 903,36,46.65,159,840,845,14.98,15.565,301,668,668,384,273,363,840,0.28,0.86,0.925,235,722,777,0.432,1.543,0.502,0.467 904,36,31.98,109,576,559,14.32,14.605,282,805,805,481,335,280,576,0.12,0.72,0.89,69,415,513,0.486,4.051,0.675,0.546 905,36,31.98,109,576,559,14.32,14.605,282,805,805,481,335,280,576,0.12,0.72,0.89,69,415,513,0.486,4.051,0.675,0.546 906,36,38.73,132,697,727,14.66,14.725,286,730,730,423,299,363,697,0.185,0.815,0.91,129,568,634,0.521,2.815,0.639,0.572 907,36,38.73,132,697,727,14.66,14.725,300,731,731,431,299,363,697,0.185,0.805,0.91,129,561,634,0.521,2.815,0.647,0.572 908,42,42.55,145,894,895,14.78,15.5,461,968,850,496,289,447,894,0.09,0.69,0.915,80,617,818,0.500,5.556,0.725,0.546 1001,42,75.41,257,1584,1652,16.38,16,588,731,731,369,203,826,1584,0.185,0.87,0.95,293,1378,1505,0.521,2.819,0.599,0.549 1002,42,68.37,233,1436,1398,16.04,15.89,503,730,730,367,216,671,1436,0.185,0.87,0.945,266,1249,1357,0.467,2.526,0.537,0.494 1003,42,75.41,257,1584,1525,16.38,16,505,688,688,341,203,671,1584,0.24,0.885,0.95,380,1402,1505,0.424,1.765,0.479,0.446 1004,36,56.63,193,1020,1032,15.48,15.71,487,787,787,413,243,516,1020,0.135,0.83,0.935,138,847,954,0.506,3.747,0.609,0.541 1005,36,56.63,193,1020,1032,15.48,15.71,487,787,787,413,243,516,1020,0.135,0.83,0.935,138,847,954,0.506,3.747,0.609,0.541 1006,42,61.91,211,1300,1342,15.72,15.8,490,732,732,389,230,671,1300,0.185,0.855,0.94,241,1112,1222,0.516,2.790,0.604,0.549 1007,42,61.91,211,1300,1342,15.72,15.8,495,738,738,391,230,671,1300,0.18,0.855,0.94,234,1112,1222,0.516,2.868,0.604,0.549 1008,42,75.41,257,1584,1652,16.38,16,581,731,731,366,203,826,1584,0.185,0.87,0.95,293,1378,1505,0.521,2.819,0.599,0.549
"total/mean":
38.043,2168.66,7391,42126,42332,15.034,14.546,18136,814.426,776.000,444.468,284.745,20127,42126,0.151,0.759,0.913,7005,33647,39049,0.483,3.664,0.661,0.528