Research Article
Comparative Study of CFRP-Confined CFST Stub Columns under Axial Compression
Table 1
Comparison of calculations and test results.
| Types | Specimens | (mm) | (MPa) | (mm) | (mm2) | (MPa) | (MPa) | (kN) | (kN) | (kN) | (kN) | / | / | NCFST (kN) | (%) | Sources |
| a | 1–2.5 | 0.17 | 1260 | 2.5 | 1013.2 | 350 | 40.15 | 1294 | 859.2 | 1176.5 | 1293.7 | 0.92 | 1.00 | 1060.5 | 22.0 | [30] | 1–3.5 | 0.17 | 1260 | 3.5 | 1440.4 | 310 | 40.15 | 1348 | 959.1 | 1285.4 | 1408.0 | 0.95 | 1.04 | 1175.5 | 14.7 | 1–4.5 | 0.17 | 1260 | 4.5 | 1880.2 | 310 | 40.15 | 1698 | 1103.6 | 1446.2 | 1575.6 | 0.85 | 0.93 | 1341.7 | 26.0 | 2–2.5 | 0.34 | 1260 | 2.5 | 1013.2 | 350 | 40.15 | 1506 | 859.2 | 1293.3 | 1430.9 | 0.86 | 0.95 | 1060.5 | 42.0 | 2–3.5 | 0.34 | 1260 | 3.5 | 1440.4 | 310 | 40.15 | 1593 | 959.1 | 1395.0 | 1540.1 | 0.86 | 0.97 | 1175.5 | 35.5 | 2–4.5 | 0.34 | 1260 | 4.5 | 1880.2 | 310 | 40.15 | 1846 | 1103.6 | 1505.4 | 1702.0 | 0.82 | 0.92 | 1341.7 | 37.6 |
| b | SC41 | 0.167 | 1500 | 4 | 2400 | 295 | 53.6 | 2215 | 1850.5 | 2175.8 | 2341.1 | 0.98 | 1.06 | 2090.1 | 5.9 | [13] | SC42 | 0.334 | 1500 | 4 | 2400 | 295 | 53.6 | 2275 | 1850.5 | 2261.3 | 2443.7 | 0.99 | 1.07 | 2090.1 | 8.8 | SC51 | 0.167 | 1500 | 5 | 3000 | 295 | 53.6 | 2485 | 2011.9 | 2326.4 | 2477.8 | 0.94 | 0.99 | 2244.0 | 10.7 | SC52 | 0.334 | 1500 | 5 | 3000 | 295 | 53.6 | 2585 | 2011.9 | 2407.9 | 2356.7 | 0.93 | 0.91 | 2244.0 | 15.2 | SC61 | 0.167 | 1500 | 6 | 3600 | 295 | 53.6 | 2710 | 2173.4 | 2472.8 | 2801.1 | 0.91 | 1.03 | 2394.3 | 13.2 | SC62 | 0.334 | 1500 | 6 | 3600 | 295 | 53.6 | 2775 | 2173.4 | 2550.0 | 2677.3 | 0.92 | 0.96 | 2394.3 | 15.9 |
| c | A-1 | 0.111 | 4900 | 3.5 | 1960 | 300 | 22.3 | 1107 | 982.5 | 1166.3 | 1110.7 | 1.05 | 1.00 | 1015.9 | 9.0 | [31] | A-2 | 0.222 | 4900 | 3.5 | 1960 | 300 | 22.3 | 1129 | 982.5 | 1272.3 | 1192.6 | 1.13 | 1.06 | 1015.9 | 11.1 | A-3 | 0.333 | 4900 | 3.5 | 1960 | 300 | 22.3 | 1222 | 982.5 | 1380.2 | 1285.4 | 1.13 | 1.06 | 1015.9 | 20.3 | B-1 | 0.111 | 4900 | 3.5 | 1960 | 300 | 26.4 | 1200 | 1055.0 | 1260.5 | 1228.5 | 1.05 | 1.02 | 1111.3 | 8.0 | B-2 | 0.222 | 4900 | 3.5 | 1960 | 300 | 26.4 | 1237 | 1055.0 | 1365.7 | 1266.3 | 1.10 | 1.02 | 1111.3 | 11.3 | B-3 | 0.333 | 4900 | 3.5 | 1960 | 300 | 26.4 | 1294 | 1055.0 | 1472.6 | 1305.6 | 1.14 | 1.01 | 1111.3 | 16.4 | C-1 | 0.111 | 4900 | 3.5 | 1960 | 300 | 32.8 | 1204 | 1168.2 | 1409.3 | 1297.1 | 1.17 | 1.08 | 1261.1 | −4.5 | C-2 | 0.222 | 4900 | 3.5 | 1960 | 300 | 32.8 | 1300 | 1168.2 | 1513.8 | 1352.5 | 1.16 | 1.04 | 1261.1 | 3.1 | C-3 | 0.333 | 4900 | 3.5 | 1960 | 300 | 32.8 | 1400 | 1168.2 | 1619.8 | 1405.9 | 1.16 | 1.00 | 1261.1 | 11.0 | D-1 | 0.111 | 4900 | 3.5 | 1960 | 300 | 40 | 1601 | 1295.6 | 1578.0 | 1502.1 | 0.99 | 0.94 | 1430.5 | 11.9 | D-2 | 0.222 | 4900 | 3.5 | 1960 | 300 | 40 | 1742 | 1295.6 | 1682.2 | 1655.4 | 0.97 | 0.95 | 1430.5 | 21.8 | D-3 | 0.333 | 4900 | 3.5 | 1960 | 300 | 40 | 1815 | 1295.6 | 1787.8 | 1797.6 | 0.99 | 0.99 | 1430.5 | 26.9 |
|
|