1 2 3 1 1. 2. 3. RC (She RC RC Q- Q- C Q- Fu 921 [1] 1 1965 2 921 RC RC RC 3
(Shear Building Mode) 921 1022 RC [2-4] RC RC ( ) Q- 1. Q cr = min (Q c, Q dc ) Q c = 2M cr / H (1) Q dc = 0.2 3 c' ( 0.75 + 2.8 d / H )( 1+βa+β d )bdm (2) β a = 100ρ -1 (3) β d = 4 1000 / d -1 (4) m=0.748 3 1 + N /( 3 43 ) (5). g M cr (N-mm) H RC (mm) b (mm) d (mm) ρ N (N) g RC (mm 2 ) 2. Q u = min ( Q u,q su ) Q u = 2M u / H (6) Q su = Q dc + ( h yh d ) / S (7) M u RC h (mm 2 ) S h (mm) yh (MPa) 3. Q y = 0.85 min ( Q u, Q su ) 4. Q = ( Q cr + Q y ) / 2 5. = 3 ( Q ) H (8) 12 C E I ( ) c gt Q (N) I gt (mm 4 ) E c = 4700 ' (MPa) C [3] ( 0 ~ Q cr ) 0.78 ( Q cr ~ Q y ) 0.15~0.78 ( Q y ~ Q u ) 0.03~0.15-0.13~0.03 [3] 6. s 2. 4( Q)( 1+ υ) H s = (9) C E s c gt υ gt (mm 2 ) C s [3] 7. T s c
RC RC Q- RC 45 1. Q cr = min ( Q c, Q dc ) Q c = 2M cr / H (10) 1 N Q dc = c' g 1 + { 1 0. 1( 1. 9H / WT 2. 6)( 1+ 2g' / g )} (11) 6 14 g N (N) H RC (mm) W T RC (mm) ' g RC (mm 2 ) g 2. Q u = min ( Q u, Q su ) Q u = 2M u / H (12) Q su = Q dc + 0.324( ch + wh + v1 ) y + 0.48( v2 y +N ) (13) ch ( wh ) (RC ) 45 (mm 2 ) v1 ( v2 ) RC 45 ( ) (mm 2 ) c ' y (MPa) 3. c 3 QcrH 7. 2Qcr H c = + 3. 6E I E (14) c g c 4. u RC u = 0.0038 ( 8.5H / W T -1 )( 1-0.72 I / Ig )H + 0.011 ( 1-0.37H / W T )( 1-0.5 b ' /g )H (15) I b ' (mm ) I g (mm 4 ) b ' (mm ) g (mm 2 ) 5. Q cr ~ Q u c u Q Q = a ( ln ) + b (16) Qu Qcr a = ln u ln c (17) Qcr ln u Qu ln c b = ln u ln c (18) Q- Q u t H W e W e 1. Q u 5 4at 2 4 2 2 Q u = ( W e + H + W e + W e H 15H 14 4 + H ) t (19) t ( t = 0.13 tm + 0.435( tb + mb ) tm g ' b
(MPa) tb (MPa) mb (MPa) [5] 2. u Q 2 W u H 2H 3 e = + u 2. 375 + (20) 2 Eut We We H (MPa) [3] E u 3. Q Q = Q u 3 3 u u 2 + u 3 (21) Nonlinear Incremental Spectrum nalysis SP (Mode superposition method) (Root mean-square method) RC [6] 1. 40% 15% 0.06g 2. 40% 70% 10% 0.04g 3. 70% 5% 0.02g
Rigidity RC (Static push-over method) 3 0.7 RC Q- RC 1. RC RC 2. 3. Q- 4. Q- Q- 5. Q- 6. Q u V i 7. [7] F u Q- Q- Q u Q- 4 OBC OB Q u G F u 8. h W 9. [8] C accw F 10. V u = 11. Q u V u a c u 5 1022 23cm 320cm RC 15cm 320cm 14% 18% y =1.14 362MPa c ' =1.18 10.3MPa b ' =13MPa tm=2mpa tb =2.86MPa mb =0.2MPa RC X Q-
6 X Q- 6 7 (Pushover Curve) 7 1B C1 C2 C4 C5 C1 C2 C3 C4 RC EP (eective peak ground acceleration) Q- 7 75% EP Q e Q e Q e W C EP Q e =EP(CW) 9 EP( CW ) Q u = (22) F u Q e Q u F u C=2.5 W=6011kN Q e =5099kN Q e =EP(CW) EP=0.339g 0.339g 1B C1 C2 C4 C5 F u Q e /Q u 5099/2683 1.901 1 1022 EP 0.269g (22) EP 0.269 C 2.5 W 6011 F u =1.901 Q max =2126kN 7 Q 2126kN 13mm 9 Q- Q- EP Q- Q- 7 Q EP RC 2 921 RC 82% 75% 53% RC 94% 86%
94% EP EP 0.33 1.25=0.41g C 2.5 RC (22) EP(2.5)W/F u EP( 2.5)( w ) τ bwbw + 0.82τ rcwrcw + 0.75τ wcwc + 0.53τ dcdc (23) F u ( )( w ) EP 2.5 τ rcwrcw + 0.94τ wcwc + 0.86τ dcdc (24) Fu EP( 2.5)( w ) τ wcwc + 0.94τ dcdc (25) Fu τ bw =0.161MPa RC τ rcw =1.96MPa (H/D 8.5) τ wc =0.966MPa τ dc =0.528MPa F u 1.5 ~ (H/D 8.5) 1.9 RC (23) (24) F u = 1.5 (25) F u = 1.9 mm 2 w 0.0098MPa 1t/m 2 (23~25) EP bw RC rcw wc dc X bw 782000mm 2 rcw 570000mm 2 wc =1620000mm 2 dc 2080000mm 2 613466700mm 2 bw rcw wc dc F u w (23~25) EP 0.268g 0.303g 0.317g 0.317g 7 EP 0.339g 0.41g RC RC (24) (23) (25) F u w τ bw τ rcw τ wc τ dc (23) (25) RC EP bw wc + 4.5 0.101EP (26) wc 0.013EP (27)
bw (mm 2 ) wc (mm 2 ) (mm 2 ) RC rcw 10 bw dc 0.5 wc (26) (27) (26) EP EP wc 8 (27) EP bw wc 8 X 0.010566 0.004336 8 0.3g 0.32g 0.339g 0.317g Sozen 10 RC 0. 5 0. 001 (28) w c + (28) EP 8 0.1g 0.16g (28) 1. RC 8 (23) (25) 7 2. 3. ( RC ) RC 4. Q- Q e C W 5. NSC89-2921-Z-319-005-34 1. 14 3 71-90 1999 2. RC
14 1 21-30 2002 3. RC (2000) 4. (2000) 5. 51-70 (1995) 6. RC 1997 7. TC, Structural Response Modiication Factors, TC-19 Report, pplied Technology Council, Redwood City, Caliornia., pp18-19,1995. 8. 1997 9. (1991) 10. Mete. Sozen, The Third lternative or Proportioning o Earthquake Resistant Buildings in Reinorced Concrete, International Workshop on Chi-Chi, Taiwan Earthquake o September 21,1999, NPHM, NCREE, pp. 5c-1-5c-18 (1999). 1 4.00 4.00 U D 3.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 5.00 2
3 Q e E Q e F u = Q u Q u B O D C 4 5
6 P- 7 0.012 wc 0.01 0.008 0.006 0.004 0.002 0 0.1g 0.3g 0.5g 0.7g 0 0.02 0.04 0.06 0.08 bw 8 RC