梁为祥¹  黄照明²  熊  翔¹  徐莹光¹  李江南¹
    （1 广东华工大建筑工程有限公司  广州 510620； 2 中山市建筑设计院 528403）

[提要]  通过SAP91有限元程序对弧形箱梁进行分析，得到弧形箱梁整体受力的特点，确定弧形箱梁侧壁计算模型，并系统地阐述了有粘结预应力弧形箱梁设计中预应力筋的计算方法、布置特点及节点处理等技术问题，以供在类似工程设计中参考。
[关键词]  弧形箱梁  有粘结预应力  有限元

Through the finite element program SAP91, a detailed analysis of 40m long bonded prestressed arc box beam is presented, and the features of its global mechanical behavior have been obtained. Moreover, the calculation model of side-wall of the beam is also determined here. Furthermore, the method of calculation of prestressing bar and its characteristics of arrangement and joint disposal are discussed systematically,which are helpful to the similar engineering.
Keywords: arc box beam; bonded prestressing; finite element