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新密市溱水路大桥为中国第一座波形钢腹板箱梁无背索部分斜拉桥。采用全桥结构数值仿真技术和组合有限元思想,在建立桥梁精细有限元整体计算模型基础上,将关键部位有限元网格细化,得到索塔锚固区、索梁锚固区、墩梁塔固结区域局部应力,对结构局部受力性能进行研究分析,为优化设计提供了依据,并总结局部关键部位设计经验,为今后设计提出建议。
Xinmi City 溱 Waterway Bridge is China’s first corrugated steel box girder backless cable-stayed cable bridge. Based on the numerical simulation of full-bridge structure and the idea of combining finite element method, the finite element mesh of the key part is refined based on the overall calculation model of the fine bridge finite element. The anchorage zone of cable tower, anchorage zone of cable beam, The local stress in the junction area is studied and analyzed for the local mechanical performance of the structure, which provides the basis for the optimal design and summarizes the design experience of the key local parts and makes suggestions for the future design.