ABSTRACT
EVALUATION OF DUCTILITY OF R/C MEMBERS AND INFLUENCE OF DUCTILITY ON INELASTIC RESPONSE BEHAVIOUR OF R/C FRAME STRUCTURES
No. p t pw a / d JO f c’ n U u
1 1.06 0.12 4.00 0 203 10 5.5 2 279 4.7
3 0.59 0.12 4.00 0 406 10 £7.1 4 0.89 357 7.1 5 1.66 338 3.9
6 1.06 0.00 4.00 0 413 10 3.6 7 0.08 400 4.9 8 0.23 318 7.5
9 1.06 0.12 3.00 0 309 10 3.8 1 0 5.00 389 6.5 1 1 6.00 363 £4.3
1 2 1.06 0.12 4.00 10 294 10 4.0 1 3 20 301 3.4
1 4 0.89 0.12 3.00 0 330 10 6.5 1 5 1.66 5.00 0 376 4.2 1 6 1.06 3.00 10 307 3.5
1 7 0.99 0.12 4.00 10 330 10 4.5
1 8 0.99 0.12 4.00 0 308 10 5.6 1 9 5 298 5.8 2 0 20 321 4.3 2 1 30 326 4.2
2 2 0.99 0.12 4.00 10 335 10 ---- 2 3 254 4.0
2 4 0.99 0.12 4.00 10 565 10 4.3 2 5 140 5.1
2 6 0.99 0.12 4.00 10 327 1 6.0 2 7 323 3 4.9 2 8 319 30 4.3
2 9 0.99 0.12 2.50 10 337 10 4.3 3 0 5.50 348 4.6
3 1 0.99 0.24 4.00 10 128 10 5.4 3 2 0.12 128 4.4 3 3 0.06 128 3.5
Note*.pt=tensi le reinforcement ratio (%) , pv=web rein forcement ratio (%) , a/d=shear span ratio, cro= axial compressive stress, fc’^ompressive strength of concrete (kg/cnf) , n=number of repetitions of loads, /jiFmeasured ductility factor
Type Yield Stress
( kg/cm2 )
Yield Strain ( a )
Ultimate Stress
( kg/cm2 )
Area of Reinforce
ment ( cm2 )
SD30,D10 3650 2440 5380 0.7133
SD30,D13
A 3960 2480 5470
1.267B 3800 2330 5500
C 3840 2100 5500
SD30,D16 3580 2090 5910 1.986
SD30,D3
A 2740 2030 5690 0.06905
B 2400 1650 4160 0.07280
C 2540 1750 4200
Note : Type A was used for Specimens No.l —16. Type B was used for Specimens No. 17-30. Type C was used for Specimens No.31-33.
