钢板悬带桥静力计算方法的研究  

Research on Static Calculation Methods for Stress Ribbon Bridge

作　　者：姜颜宁 JIANG Yanning(Shanghai Xuhui Planning Architecture Design Co.,Ltd.,Shanghai 200230,China)

机构地区：[1]上海徐汇规划建筑设计有限公司,上海200230

出　　处：《北方建筑》2025年第2期68-73,共6页Northern Architecture

摘　　要：钢板悬带桥以钢拉板作为主要受力构件,上方铺设预制混凝土桥面板,是一种轻盈美观的桥梁形式。国内外已有多处应用案例,但对其计算理论的研究相对较少,且均以两边鞍座标高相同的桥型作为分析对象。考虑钢拉板抗弯刚度和鞍座曲率的影响,推导了静力工况下两端鞍座不等高时,钢板悬带桥曲线的非线性方程组。结合数值方法,给出了钢板悬带桥近似曲线函数的计算方法。在此基础上,分析了悬带桥的初始矢高、鞍座间水平距离的变动、鞍座间竖向距离的变化对钢板悬带桥性能的影响。结果表明,钢板悬带桥的性能对初始矢高、鞍座间水平距离的变动较为敏感,而鞍座间竖向距离的变化对其影响较小,并相应给出了工程应用建议。Stress ribbon bridge is a slender and elegant form of bridge,which uses steel ribbons as the main load-bearing components and has precast concrete slabs laid on top.There are many application cases both domestically and internationally,but researches on its calculation theory are relatively scarce,and existing studies mainly focus on bridges with the same saddle elevation.Considering the bending stiffness of the steel ribbons and the curvature of the saddles,a nonlinear system of equations for the curve of the steel ribbons under static conditions was derived,when the two end saddles at different heights.Using numerical methods,an approximate curve func-tion calculation method of the stress ribbon bridge is provided in this paper.On this basis,the effects of the initial sag of the suspension bridge,the change of the distance between saddles in horizontal,and the change in vertical distance between saddles on the performance of the stress ribbon bridge are analyzed.The results show that the performance of the stress ribbon bridge is sensitive to the initial sag and the horizontal distance between saddles,while the change in vertical distance between saddles has a small impact,and corresponding design suggestions are given.

关 键 词：钢板悬带桥 静力计算 钢拉板 参数分析 

分 类 号：TU311.1[建筑科学—结构工程]