The Study on Mechanical Performance of New Composite Steel-Truss Travelling Bridge Structure

Abstract:

As for structural beam of travelling bridge under reciprocate loads, at the bearing there will be a large change in stress of structure, while at the ends and midspan, the change of stress of structure will be simple. In this paper, based on the bearing features of travelling bridge structure, as well as features of steel-truss beam and steel box beam, a new composite structure, which is named as steel truss-steel truss box beam, is put forward. This new structure adopts steel box beam with truss inside at the bearings, and adopts steel truss beam at the midspan. Based on a certain engineering project, combined with ANSYS, according to a serious of sizes and structure styles, work of modeling, analysing and optimizing has been done in this paper. As calculating results showed, steel truss-steel truss box beam not only has higher bearing capacity, structural bearing capacity and a better wholeness, but also has a lower steel usage, which can provide references for similar composite structures' research in future.

• Periodical: Advanced Materials Research (Volumes 374-377)
• Pages: 2221-2225
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.374-377.2221
• Online since: October 2011
• Authors: Hong Sheng Qiu, Shu Shi, Xiao Min Huang
• Keywords: Composite Structure, Steel Box Beam, Steel Truss, Travelling Bridge

References

[1] Fang Zhou, Xi Cao. Optimization and Design Research on Steel Box Beam [J]. Shanxi Architecture，2007，33（23）:15.

[2] Serrette, Reynaud L. Performance of edge-loaded cold-formed steel built-up box beams [J]. Practice Periodical on Structural Design and Construction, 2004, 9（3）: 170-174.

DOI: 10.1061/(asce)1084-0680(2004)9:3(170)

[3] Shi, Qi-Yin; Cai, Jian-Lin; Chen, Qian-Qian; Li, Ai-Qun; Qin, Wei-Hong. Tensional experiment and analysis on steel-encased concrete composite beams [J]. Gongcheng Lixue/Engineering Mechanics, v 25, n 12, pp.162-170, December 2008.

[4] Chen, Yu-Ji. Approximate solution to through steel-truss composite beams under the action of double-track symmetry loads [J]. Tiedao Xuebao/Journal of the China Railway Society, v 30, n 1, pp.48-52, February 2008.

[5] Fan, Zhanfei. Behavior of steel box girders with top flange bracing [J]. Journal of structural engineering. New York, N.Y., v 125, n 8, pp.829-837, 1999.

DOI: 10.1061/(asce)0733-9445(1999)125:8(829)

[6] Li, Chun-Guang; Zhang, Zhi-Tian; Chen, Zheng-Qing; Liao, Jian-Hong. Experimental study on the aerodynamic stability measure of a suspension bridge with truss stiffening girder [J]. Zhendong yu Chongji/Journal of Vibration and Shock, v 27, n 9, pp.40-43, September 2008.

[7] Okamoto, Yasuhiro; Kubota, Akira; Yamada, Takeshi. Steel trusses rigidly connected to RC piers at the middle support point [J]. R and D: Research and Development Kobe Steel Engineering Reports, v 53, n 1, pp.12-18, 2003.

[8] Xu, Jin-Yong; Yan, Quan-Sheng; Wang, Wei-Feng; Han, Da-Jian. Section deformation of flat hollow steel box girder of cable-stayed bridge during cantilever erection [J]. Huanan Ligong Daxue Xuebao/Journal of South China University of Technology (Natural Science), v 35, n 3, pp.127-131, March 2007.

[9] Sakuma, Satoru; Kurita, Akimitsu; Okamoto, Yasuhiro. Tarodani bridge-Hybrid rigid frame bridge consisting of steel truss and RC pier (Tarodani bridge-Hybrid rigid frame bridge consisting of steel truss and RC pier) [J]. Stahlbau, v 72, n 5, pp.331-339, May 2003.

DOI: 10.18057/icass2020.p.286