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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.32 No.3
- 발행연도
- 2019.1
- 수록면
- 325 - 336 (12page)
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초록· 키워드
오류제보하기
Concrete placement and temporary formwork of bridge deck overhangs result in unbalanced eccentric loads that cause exterior girders to rotate during construction. These construction loads affect the global and local stability of the girders and produce permanent girder rotation after construction. In addition to construction loads, the skew angle of the bridge also contributes to girder rotation. To prevent rotation (in both skewed and non-skewed bridges), a number of techniques have been suggested to temporarily brace the girders using transverse tie bars connecting the top flanges and embedded in the deck, temporary horizontal and diagonal steel pipes placed between the webs of the exterior and first interior girders, and permanent cross frames. This study includes a rigorous three-dimensional finite element analysis to evaluate the effectiveness of several bracing systems for non-skewed and several skewed bridges. In this paper, skew angles of 0°, 20°, 30°, and 45° were considered for single- and three-span bridges. The results showed that permanent cross frames worked well for all bridges, whereas temporary measures have limited application depending on the skew angle of the bridge.
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참고문헌 (27)
참고문헌 신청
2013 / Abaqus 6.13, Abaqus/CAE User’s Guide / Hibbitt, Karlsson & Sorensen, Inc
Apirakvorapinit, P. / 2011 / Analytical investigation of potential seismic damage to a skewed bridge / Practice Period. Struct. Des. Constr 17(1):5~12
Ariyasajjakorn, D. / 2006 / Review of NCDOT practices for analyzing overhang falsework
Ashiquzzaman, M. / 2016 / Effectiveness of exterior beam rotation prevention systems for bridge deck construction
Ashiquzzaman, M. / 2016 / Effect of inconsistent diaphragms on exterior girder rotation during overhang deck construction / Structures 8:25~34
Apirakvorapinit, P. / 2011 / Analytical investigation of potential seismic damage to a skewed bridge / Practice Period. Struct. Des. Constr 17(1):5~12
Ariyasajjakorn, D. / 2006 / Review of NCDOT practices for analyzing overhang falsework
Ashiquzzaman, M. / 2016 / Effectiveness of exterior beam rotation prevention systems for bridge deck construction
Ashiquzzaman, M. / 2016 / Effect of inconsistent diaphragms on exterior girder rotation during overhang deck construction / Structures 8:25~34
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