Advances in Civil Engineering / 2019 / Article / Tab 3 / Research Article
Analysis of Bearing Capacity and Seismic Performance of Circular RC Columns Strengthened with Externally Wrapped Steel Plates Table 3 Specimen parameters and comparison of ultimate bearing capacity.
Specimens e (mm)u L (mm)D (mm)t (mm)f y (MPa)f yz (MPa)f yh (MPa)f c (MPa)P ut (kN)P uf (kN)P uf /P ut Loading methods Data sources C2R — 0.06 1220 610 4.8 348 324 359 34 734 639 0.87 Horizontal shear Literature [41 , 42 ] C4R — 0.06 1220 610 4.8 348 324 324 35 957 813 0.85 C6R — 0.18 1220 610 3.2 286 469 324 40 1024 850 0.83 C8R — 0.18 915 610 3.2 286 469 324 31 1228 1105 0.90 ZY2-1 — — 1200 280 4.0 433 400 380 36 4358 3879 0.89 Axial compression Literature [45 ] ZY2-2 — — 1200 280 4.0 433 400 380 36 4594 4181 0.91 ZY3-1 — — 1200 280 4.0 433 400 380 36 4700 4277 0.91 ZY3-2 — — 1200 280 4.0 433 400 380 36 4581 4260 0.93 CTRC-60-8 — 0.8 1200 226 2.7 436 506 305 53 232 218 0.94 Horizontal circulation Literature [68 ] CTRC-60-6 — 0.6 1200 226 2.7 436 506 305 53 199 186 0.93 CTRC-60-3 — 0.3 1200 226 2.7 436 506 305 53 139 133 0.96 CTRC-30-8 — 0.8 1200 226 2.7 436 506 305 39 164 150 0.92 C200-6-25-a 25 — 1200 200 1.5 364 477 286 56 1926 1887 0.98 Eccentric compression Literature [69 ] C200-6-25-b 25 — 1200 200 1.5 364 477 286 56 1758 1688 0.96 C200-6-50-a 50 — 1200 200 1.5 364 477 286 56 1317 1225 0.93 C200-6-50-b 50 — 1200 200 1.5 364 477 286 56 1238 1201 0.97 C200-10-25-a 25 — 2000 200 1.5 364 477 286 56 1602 1522 0.95 C200-10-25-b 25 — 2000 200 1.5 364 477 286 56 1520 1490 0.98 C200-10-50-a 50 — 2000 200 1.5 364 477 286 56 1121 1054 0.94 C200-10-50-b 50 — 2000 200 1.5 364 477 286 56 1136 1102 0.97 C240-6-25-a 25 — 1440 240 1.5 364 477 286 56 2518 2468 0.98 C240-6-25-b 25 — 1440 240 1.5 364 477 286 56 2464 2292 0.93 C240-6-50-a 50 — 1440 240 1.5 364 477 286 56 1957 1879 0.96 C240-6-50-b 50 — 1440 240 1.5 364 477 286 56 1872 1685 0.90 C240-10-25-a 25 — 2400 240 1.5 364 477 286 56 2219 2175 0.98 C240-10-25-b 25 — 2400 240 1.5 364 477 286 56 2212 2124 0.96 C240-10-50-a 50 — 2400 240 1.5 364 477 286 56 1909 1756 0.92 C240-10-50-b 50 — 2400 240 1.5 364 477 286 56 1687 1653 0.98
Note. e is the eccentricity; u is the axial compression ratio; L , D , and t represent the steel pipe length, outer diameter, and wall thickness, respectively; f y , f yz , and f yh are the measured yield strength of steel pipe, longitudinal bar, and stirrup, respectively; f c is the compressive strength of concrete; P ut represents the test value of bearing capacity; P uf is the FEM simulation value of bearing capacity.