Research Article
Behavior of the T-Shaped Concrete-Filled Steel Tubular Columns after Elevated Temperature
Table 6
Fitting analysis of ultimate bearing capacity of specimens.
| | Experiment specimens’ number | Ultimate bearing capacity experimental value N1 (kN) | Fitting predicted value N2 (kN) | Difference N2-N1 (kN) | Percentage error |
| | 4-20-0 | 2307.8 | | | | | 4-300-1.0 | 2165.2 | 2306.29 | 141.09 | 6.52% | | 4-600-1.0 | 2141.2 | 2111.33 | −29.87 | −1.40% | | 4-900-1.0 | 1259.6 | 1316.34 | 56.74 | 4.50% | | 4-300-1.5 | 2241.2 | 2371.51 | 130.31 | 5.81% | | 4-600-1.5 | 2072.2 | 2137.92 | 65.72 | 3.17% | | 4-900-1.5 | 1122.6 | 1214.30 | 91.70 | 8.17% | | 4-300-2.0 | 2144.8 | 2336.73 | 191.93 | 8.95% | | 4-600-2.0 | 1997.0 | 2164.50 | 167.50 | 8.39% | | 4-900-2.0 | 1048.0 | 1152.25 | 104.25 | 9.95% | | 5-20-0 | 2670.4 | | | | | 5-300-1.0 | 2610.2 | 2798.49 | 188.29 | 7.21% | | 5-600-1.0 | 2608.6 | 2572.90 | −35.70 | −1.37% | | 5-900-1.0 | 1586.4 | 1722.43 | 136.03 | 8.57% | | 5-300-1.5 | 2838.8 | 2873.96 | 35.16 | 1.24% | | 5-600-1.5 | 2434.4 | 2603.66 | 169.26 | 6.95% | | 5-900-1.5 | 1497.2 | 1608.49 | 111.29 | 7.43% | | 5-300-2.0 | 2699.4 | 2949.42 | 250.02 | 9.26% | | 5-600-2.0 | 2292.0 | 2434.42 | 142.42 | 6.21% | | 5-900-2.0 | 1504.6 | 1664.55 | 159.95 | 10.63% | | 6-20-0 | 3120.2 | | | | | 6-300-1.0 | 2816.0 | 3040.90 | 224.90 | 7.99% | | 6-600-1.0 | 2728.8 | 2977.30 | 248.50 | 9.11% | | 6-900-1.0 | 1857.4 | 1983.58 | 126.18 | 6.79% | | 6-300-1.5 | 3256.0 | 3329.08 | 73.08 | 2.24% | | 6-600-1.5 | 2684.8 | 2913.25 | 228.45 | 8.51% | | 6-900-1.5 | 1724.8 | 1867.30 | 142.50 | 8.26% | | 6-300-2.0 | 3328.4 | 3417.25 | 88.85 | 2.67% | | 6-600-2.0 | 2582.6 | 2749.19 | 166.59 | 6.45% | | 6-900-2.0 | 1753.2 | 1951.01 | 197.81 | 11.28% |
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