Spatial Mechanical Behavior Research of Cable Anchorage Zone of Special-Shaped Steel Box Concrete Tower

Abstract:

In order to grasp the force performance and stress distribution of shaped pylon steel anchor box under the action of the cable tension, with a main span of 555m length of three towers cable-stayed and self-anchored suspension combined system bridge as the engineering background, through the APDL command stream parametric programming, the different finite element models of pylon steel anchor box is established by the spatial solid element and shell element, the mechanical properties of cable-pylon anchorage zone were studied under the most unfavorable load combination, considering the stress state and distribution characteristics of steel anchor box under different orthodontic force. The results showed that: under the most unfavorable combination of loads, the stress was concentrated at the position of the anchor plate and pressure plate using the initial strain mode; the calculation results of solid element and shell element were consistent by uniform loading mode, which could reflect the real stress state of steel anchor box, but the shell element corner contact area prone to stress calculation distortion.

• Periodical: Applied Mechanics and Materials (Volumes 368-370)
• Pages: 1762-1768
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.368-370.1762
• Online since: August 2013
• Authors: Shi An Li, Zhi Hui Zhang, Wei Li, Cong Yu Huang
• Keywords: Cable-Pylon Anchorage Zone, Finite Element Method (FEM), Parametric Programming, Shaped Steel Box Concrete Cable-Pylon, Steel Anchor Box, Stress Distribution

References

[1] Zhuo Weidong, Fang Zhenzheng. Spatial stress analysis of the cable anchorage zone in a PC tower. Journal of Tongji University. 1999, 27(2): 203~206.

[2] Xiang Yiqiang, Chen Guoqiang. The test and spatial analysis for the full scale segment model of the cable pylon of Poyanghukou Bridge. China Journal of Highway and Transport. 2000, 13(4): 74~78.

[3] Liu Zhao, Meng Shaoping, Liu Zhi. Full-scale model test for pylon segment of the cable-stayed bridge of runyang yangtze river bridge. China Civil Engineering Journal. 2004, 37(6): 35~40.

[4] Zhou Xuhong, Lv Zhongda, Di Jin. Analysis of ultimate bearing capacity on cable-girder anchorage zone of cable-stayed bridge with steel box girder. Journal of Chang an University (Natural Science Edition). 2007, 27(3): 47~51.

DOI: 10.7763/ijet.2012.v4.464

[5] Di Jin, Zhou Xuhong. Mechanical property of cable-pylon anchorage zone of cable-stayed bridge with steel box girder. China Journal of Highway and Transport. 2007, 20(4): 48~52.

[6] Zhang Junping, Li Yonghe, Huang Daofei. The local stress analysis of anchor box of fochen bridge. Journal of Guangzhou University (Natural Science Edition). 2002, 1(3): 79~83.

[7] Yan Hai, Fan Lichu. Research on nonlinear contact problem of cable-beam anchorage for long-span cable-stayed bridge. China Journal of Highway and Transport. 2004, 17(2): 46~49.

[8] Wang Xinmin. ANSYS Gong Cheng Jie Gou Shu Zhi Fen Xi. Beijing: China Communications Press, 2007. P156.