George C. Lee (1) (2) C393Z π 42
Linn Cove [1,2] 1(a)(b) Figg and Muller 6.1 1.5 epoxy epoxy Linn Cove 183 [3] (a) (b) (c) (d) 1 43
Dollas [4] [5] (P1) (P2 P3P4) 2Priestley et al. (2002) [6] ( 3 ) P1 P2 P3 P4 2 (2002) [5] 44
(ductile joint) (critical joint) 3 Raynor et al. (2002) [7] ( 4a ) (Leu) 4 Lau Lau Leu (Ld) (Lau) 4a 4b 45
AASHTO LRFDA5.11.2.1 [8] N0.36 (1) 0.8 0.75 A b (mm 2 ) f y (MPa) 28 (MPa) d b (mm) L d Matsumoto (2003) [9] 24 d b AASHTO (2004) 24 d b (Rocking Column) (Low cycle fatigue ) (Leu) [10,11] (2) (3) (5% draft) ( 1 ) (4) (5) (4) (5) Manson -Coffin equation( 6) ( 7)[12] (damage index) D 0.4 ~ 0.9 D = 0.2 5% (Lau) #5 #8 400mm 100mm (6) (7) (debonding) 5 5(b) 5(a) 15% ( 7) 25% 46
5 6 7 47
C8CC0C C5C ( ) 1%(100mm)0%(0mm) 5%(400mm) ( ) ( 8 ) ( 8) ( ) ( ) ( ) ( ) ( ) ( ) (epoxy) (1) (3) (5) (2) (6) (4) 8 48
9 C8C 1% C0C C5C 0.5% C0C 0.4% 10 C8C C0C C8C C0C C5C 0.5% ( 600 µ 1 3 5 7 9 600 µ 1 3 5 7 9 111315 600 µ 1 3 5 7 9 11 400 (a) C8C 400 (b) C0C 400 (c) C5C Lateral strength (KN) 200 0-200 -400 Lateral strength (KN) 200 0-200 -400 Lateral strength (KN) 200 0-200 -400-600 -5-4 -3-2 -1 0 1 2 3 4 5 Drift ratio (%) -600-5 -4-3 -2-1 0 1 2 3 4 5 Drift ratio (%) -600-5 -4-3 -2-1 0 1 2 3 4 5 Drift ratio (%) 9 10 49
C8C) ( C0C) ( C5C) 1. Jean M. Muller, Barker, James M., Design and Construction of Linn Cove Viaduct,PCI Journal, Vol. 30, No. 5, Sep-Oct. 1985. 2. Jean M. Muller, Barker, James M., Joint Heating Allows Winter Construction on Linn Cove Viaduct, PCI Journal, Vol. 27, No. 5, Sep-Oct. 1982, pp. 120-130. 3. Sarah L. Billington, Robert W. Barnes, and John E. Breen, A Precast Segmental Substructure System for Standard Bridges,PCI Journal, Vol. 44, No. 4, July- August 1999, pp. 56-73. 4. PCI Committee on Segmental Construction, Recommended Practice for Precast Post-Tensioned Segmental Construction,PCI Journal, Vol. 27, No. 1, Jan.-Feb. 1982, pp. 7-9. 5. Chang, K. C., Loh, C. H., Chiu, H.S., Hwang, J. S., Cheng, C. B., Wang, R. J, The seismic behavior of the precast segmental bridge column and the design methodology for applications in Taiwan, Taiwan Area National Expressway Engineering Bureau, Taipei, Taiwan, 2002 (In Chinese). 6. Joshua T. Hewes and M. J. Nigel Priestly, Seismic Design and Performance of Precast Concrete Segmental Bridge Columns,Report No. SSRP 2001/25, University of California at San Diego, La Jolla, California, May 2002. 7. Raynor, D. J., Lehman, D. E., and Stanton, J. F. (2002). Bond-slip response of reinforcing bars grouted in ducts.aci Struct. J., 99(5), pp. 568-576. 8. AASHTO. (2004). AASHTO LRFD Bridge Design Specifications, 3rd Edition, Washington, D.C. 9. Matsumoto, E. E. (2003). Development of a Precast Bent Cap System for Seismic Regions,Lake Belton Bridge-Precast Concrete Bent Cap Demonstration Workshop, Temple, T.X. 10. Ou, Y-C., Chiewanichakorn, M., Ahn, I-S., Aref, A.J., Chen, S.S., Filiatrault, A., Lee, G.C., Liang, Z., and O'Connor, J. (2005). Modeling of the Precast Unbonded Post-Tensioned Segmental Bridge Column under Lateral Load,The PCI National Bridge Conference, Palm Springs, CA, October 16-19 (2005). 11. Ou, Y-C., Chiewanichakorn, M., Ahn, I-S., Aref, A.J., Chen, S.S., Filiatrault, A., Lee, G.C. (2006). Cyclic Performance of Precast Concrete Segmental Bridge Column,Transportation Research Board 85th Annual Meeting, Washington D.C., January 22-26, 2006. (In Review) 12. Wehner, T. and Fatemi, A. (1991). Effect of mean stress on fatigue behavior of a hardened carbon steel.int. J. Fatigue, Vol. 13, No. 3. 50