Table 2 Specified properties of simulated reinforced concrete frames.
From: Effective Length of Reinforced Concrete Columns in Braced Frames
Load case | Properties | Specified values | Number of specified values |
|---|---|---|---|
1 and 2 Upper end of column fixed against rotation, as shown in Fig. 1a and b | ℓ col /h col | 15; 17.5; 20; 22.5; 25; 27.5; 30; 32.5;35; 37.5; 40; 42.5; 45; 47.5;50; 52.5; 55 | 17 |
ℓ bm /h bm | 10; 15; 20; 30; 40 | 5 | |
M bm /M y(bm) | 0.84; 1.00; 1.06; 1.12 | 4 | |
Total number of simulated frames equals (17 × 5 × 4 =) 340 for Load Case 1 and 340 for Load Case 2 | |||
3 and 4 Upper end of column pin-ended, as shown in Fig. 1c and d | ℓ col /h col | 10; 12.5; 15; 17.5; 20; 22.5; 25; 27.5; 30; 32.5; 35; 37.5; 40; 42.5; 45 | 15 |
ℓ bm /h bm | 10; 15; 20; 30; 40 | 5 | |
M bm /M y(bm) | 0.84; 1.00; 1.06; 1.12 | 4 | |
Total number of simulated frames equals (15 × 5 × 4 =) 300 for load case 3 and 300 for Load Case 4 | |||
5 and 6 Bending moment applied to upper end of column which is pin-ended, as shown in Fig. 1e and f | ℓ col /h col | 15; 20; 25; 30; 35; 40 | 6 |
ℓ bm /h bm | 10; 15; 20; 30; 40 | 5 | |
M bm /M y(bm) | 0.84; 1.00; 1.06; 1.12 | 4 | |
M/(P u h) | 0.1; 0.2; 0.3; 0.4; 0.6; 0.8; 1.0 | 7 | |
Total number of simulated frames equals (6 × 5 × 4 × 7 =) 840 for load case 5 and 840 for load case 6 | |||