一种曲线无背索斜拉桥设计与计算

Design and Calculation of a Curve Cable-stayed Bridge without Backstays

以某景观桥工程项目-东湾大桥为基础,介绍了一种曲线无背索斜拉桥的设计方案;并采用Midas及ANSYS有限元软件对该桥进行了全桥和局部计算分析。验算了全桥刚度、强度及整体稳定性,并对关键构件进行了局部分析。计算结果表明,该无背索斜拉桥的整体强度、刚度、稳定性和局部构件强度满足设计规范要求。相关成果可为桥梁设计人员提供参考。

Based on the Dongwan Bridge,a landscape bridge project,introduces the design of a curved cable-stayed bridge,and used the Midas and ANSYS finite element software to perform full bridge and local calculation analysis.The overall deformation,bending moment and stress of the bridge are checked,and the deformation and stress of the key components under the most unfavorable load combinations are calculated.The calculation results showed that the overall stability and local component strength of the cable-stayed bridges without backstays meet the design specifications,and the relevant results can provide reference for bridge designers.