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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.2
- 발행연도
- 2019.1
- 수록면
- 189 - 198 (10page)
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This paper aims to study the mechanical performance of three-tower four-span suspension bridges with steel truss girders, including the static and dynamic characteristics of the bridge system, and more importantly, the influence of structural parameters including the side-main span ratio, sag-to-span ratio and the girder stiffness on key mechanical indices. For this purpose, the Oujiang River North Estuary Bridge which is a three-tower four-span suspension bridge with two main spans of 800m under construction in China is taken as an example in this study. This will be the first three-tower suspension bridge with steel truss girders in the world. The mechanical performance study and parametric analysis are conducted based on a validated three-dimensional spatial truss finite element model established for the Oujiang River North Estuary Bridge using MIDAS Civil. It is found that a relatively small side-main span ratio seems to be quite appropriate from the perspective of mechanical performance. And decreasing the sag-to-span ratio is an effective way to reduce the horizontal force subjected to the midtower and improve the antiskid safety of the main cable, while the vertical stiffness of the bridge will be reduced. However, the girder stiffness is shown to be of minimal significance on the mechanical performance. The findings from this paper can be used for design of three-tower suspension bridges with steel truss girders.
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참고문헌 (24)
참고문헌 신청
Boonyapinyo, V. / 2006 / Nonlinear aerostatic stability analysis of suspension bridges / Eng. Struct 28(5):793~803
Cao, H. Y. / 2018 / Feasible Range for Midtower Lateral Stiffness in Three-tower Suspension Bridges / J. Bridge Eng 23(3):06017009
최동호 / 2013 / Nonlinear Static Analysis of Continuous Multi-span Suspension Bridges / International Journal of STEEL STRUCTURES 13(1):103~115
David Collings / 2016 / Multiple-span suspension bridges: state of the art / Proceedings of the Institution of Civil Engineers - Bridge Engineering 169(3):215~231
Fukuda, T. / 1967 / Analysis of multispan suspension bridges / J. Struct. Div. : ASCE 93(3):63~86
Cao, H. Y. / 2018 / Feasible Range for Midtower Lateral Stiffness in Three-tower Suspension Bridges / J. Bridge Eng 23(3):06017009
최동호 / 2013 / Nonlinear Static Analysis of Continuous Multi-span Suspension Bridges / International Journal of STEEL STRUCTURES 13(1):103~115
David Collings / 2016 / Multiple-span suspension bridges: state of the art / Proceedings of the Institution of Civil Engineers - Bridge Engineering 169(3):215~231
Fukuda, T. / 1967 / Analysis of multispan suspension bridges / J. Struct. Div. : ASCE 93(3):63~86
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