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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.17 No.4
- 발행연도
- 2016.1
- 수록면
- 541 - 557 (17page)
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초록· 키워드
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Prefabricated bridge substructures provide new possibility for designers in terms of efficiency of creativity, fast construction, geometry control and cost. Even though prefabricated bridge columns are widely adopted as a substructure system in the bridge construction project recently, lack of deeper understanding of the seismic behavior of prefabricated bridge substructures cause much concern on their performance in high seismic zones. In this paper, experimental research works are presented to verify enhanced design concepts of prefabricated bridge piers. Integration of precast segments was done with continuity of axial prestressing tendons and mild reinforcing bars throughout the construction joints. Cyclic tests were conducted to investigate the effects of the design parameters on seismic performance. An analytical method for moment-curvature analysis of prefabricated bridge columns is conducted in this study. The method is validated through comparison with experimental results and the fiber model analysis. A parametric study is conducted to observe the seismic behavior of prefabricated bridge columns using the analytical study based on strain compatibility method. The effects of continuity of axial steel and tendon, and initial prestressing level on the load-displacement response characteristics, i.e., the strain of axial mild steels and posttensioned tendon at fracture and concrete crushing strain at the extreme compression fiber are investigated. The analytical study shows the layout of axial mild steels and posttensioned tendons in this experiment is the optimized arrangement for seismic performance.
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참고문헌 (20)
참고문헌 신청
AASHTO / 2007 / AASHTO LRFD bridge specification (4th Ed.)
Billington, S. / 2001 / Alternate substructure systems for standard highway bridges / J. Bridge Eng.-ASCE 6(2):87~94
Billington, S. / 2004 / Cyclic response of unbonded posttensioned precast columns with ductile fiber-reinforced concrete / J. Bridge Eng. -ASCE 9(4):353~363
Bu, Z.Y. / 2013 / Simplified Analytical Pushover Method for Precast
Chiewanichakorn, M. / 2006 / Finite element simulations of seismic response of precast concrete segmental columns / Struct. Cong.-ASCE :1~9
Billington, S. / 2001 / Alternate substructure systems for standard highway bridges / J. Bridge Eng.-ASCE 6(2):87~94
Billington, S. / 2004 / Cyclic response of unbonded posttensioned precast columns with ductile fiber-reinforced concrete / J. Bridge Eng. -ASCE 9(4):353~363
Bu, Z.Y. / 2013 / Simplified Analytical Pushover Method for Precast
Chiewanichakorn, M. / 2006 / Finite element simulations of seismic response of precast concrete segmental columns / Struct. Cong.-ASCE :1~9
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