斜拉桥的空间非线性静力分析

THREE-DIMENSIONAL NONLINEAR STATIC ANALYSIS OF CABLE-STAYED BRIDGES

针对斜拉桥高次超静定复杂结构,建立了合理的有限元模型。采用大型有限元软件ANSYS对结构整体进行了空间非线性静力分析,以彩色图给出了桥梁结构的弯矩图,斜拉索拉力图,提出了预应力布设的修改建议。分析结果为设计提供了重要的参考依据。

It is established a reasonable finite element model according to higher hyperstatic complex structure of cablestayed bridges.Threedimensional nonlinear static analysis of overall structure of cablestayed bridges is carried out by the largescale finite element softwareANYSYS.The color figures of bending moment in cablestayed bridges and tensile force in cable are provided.Based on the results,amending suggestion on prestressing force arrangement is put forward,the important reference is given to designers.