STRUCTURAL ANALYSIS OF ANCHORING SYSTEM BASED ON NUMERICAL SIMULATION
A stay cable bridge with an inclined tower and its surface is arc line-type one. The cable tower lies in the inner side of the bridge floor slantways. It has two steel cables on the reverse side of the declining direction. To adopt OVM250-211 anchor, each steel cable undergoes the load of 22000kN. The pre-stressed anchor system uses several steel cables, that is, the back cable anchor is fixed in the center of the connective plate (II), then the connective plate (II) and (I) ties together through four tension bars, furthermore, the connective plate (I) is fixed on the anchoring system by four bunch of OVM15-55 pre-stressed steel cables. After the design of the structure, it is necessary to withstand the tension force with 22000kN but does not appear yield phenomenon. The anchoring system with back cables was simulated based on MSC.MARC three-dimensional elasto-plastic finite element method software and advanced contact technology. The finite element model of the structure was established by Lagrange method of three-dimensional FEM. To calculate and analyze equivalent of elastic strain and equivalent of stress for the connective plates and the tension bars, the results indicated that the two connective plates and the tension bars satisfied the request of strength characters, thus the design of the anchoring system was feasible.
Yang licheng Fu caiming Hu Guojun
Department of Mechanical Engineering, Hunan Institute of Engineering, Xiangtan, Hunan Province, P.R.China, 411101.
国际会议
第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)
北京
英文
2007-10-15（万方平台首次上网日期，不代表论文的发表时间）