Browse > Article

Determination of the Initial Tendon Force in Two-span Continuous Steel-Concrete Composite Beam Strengthened with External Tendons  

Choi, Dong Ho (한양대학교 토목공학과)
Yoo, Dong Min (한양대학교 토목공학과)
Jung, Jae Dong (한양대학교 토목공학과)
Kim, Eun Ji (한양대학교 토목공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.10, no.4, 2006 , pp. 145-154 More about this Journal
Abstract
This paper presents a method to enhance the load carrying capacity for a two-span continuous steel-concrete composite beam strengthened with external tendons. The tendon is placed at the bottom of steel beam where the positive bending moment occurs. This results in the reduction of the negative bending moment as well as the positive bending moment. This paper describes the procedure to determine the number of tendon and the initial tendon force for the target rating factor in the rating factor equation. An example beam is given to demonstrate the proposed procedure, and it validity is confirmed.
Keywords
External tendon; Two-span continuous composite beam; Rating factor; Initial tendon force;
Citations & Related Records
연도 인용수 순위
  • Reference
1 박영훈, 최준혁, 박용걸, "공용중인 판형교의 강성을 고려한 외부 후 긴장 보강," 대한토목학회, 제24권, 제3A호, 2004, pp. 445-453.
2 최형규, 한경봉, 엄준식, 박선규, "연속화된 프리스트레스트 Steel H-Beam의 휨거동 특성에 대한 실험적 연구," 한국구조물진단학회 2003년도 봄 학술발표회 논문집, 2003, pp. 271-276.
3 Saadatmanesh, H, Albrecht, P. and Ayyub, B. M., "Analytical Study of Prestressed Composite Beams," Journal of Structural Engineering, ASCE, Vol. 115 No. 9, 1989a, pp. 2364-2381.   DOI
4 Saadatmanesh, H, Albrecht, P. and Ayyub, B. M., "Experimental Study of Prestressed Composite Beams," Journal of Structural Engineering, ASCE, Vol. 115 No. 9, 1989b, pp. 2348-2363.   DOI
5 Saadatmanesh, H, Albrecht, P. and Ayyub, B. M., "Guidelines for Flexural Design of Prestressed Composite Beams," Journal of Structural Engineering, ASCE, Vol. 115 No. 11, 1989c, pp. 2944-2961.   DOI
6 Tong, W. and Saadatmanesh, H., "Parametric Study of Continuous Prestressed Composite Girders," Journal of Structural Engineering, ASCE, Vol. 118 No. 1, 1992, pp. 186-206.   DOI
7 건설교통부, "도로교의 내하력평가 실무메뉴얼," 2002.
8 백동훈, 이우현, 김기봉, "후긴장을 이용한 연속 합성 격자형교의 보강방법에 관한 연구," 한국강구조학회 논문집, Vol. 9, No. 3, 1997, pp. 441-455.
9 조두용, 박대열, 박선규, "현장실험을 통한 외부 후긴장 Steel I-Beam의 휨 거동 특성," 한국구조물진단학회, 한국구조물진단학회 논문집, Vol. 6, No. 3, 2002, pp. 151-158.
10 Troitsky, M. S., Zielinski, Z. A. and Nouraeyan, A., "Pre-Tensioned and Posttensioned Composite Girders," Journal of Structural Engineering, ASCE, Vol. 115, No. 12, 1989, pp. 3142-3153.   DOI
11 한만엽, 이상욱, "외부강선 보강공법의 실보강량 분석 연구," 대한토목학회 2004년도 정기학술대회 논문집, 2004, pp. 4766-5771.
12 Troitsky, M. S., "Prestressed Steel Bridges Theory and Design," Van Nostrand Reinhold Company, USA, 1990.
13 Klaiber, F. W., Wipf, T. J. and Fanous, F. S., "Strengthening of Two Continuous-span Steel Stringer Bridges," Construction and Building Materials, 12(2-3), 1998, pp. 151-159.   DOI   ScienceOn