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    梁為祥¹  黃照明²  熊  翔¹  徐瑩光¹  李江南¹
    （1 廣東華工大建筑工程有限公司  廣州 510620； 2 中山市建筑設(shè)計(jì)院 528403）

[提要]  通過SAP91有限元程序?qū)⌒蜗淞哼M(jìn)行分析，得到弧形箱梁整體受力的特點(diǎn)，確定弧形箱梁側(cè)壁計(jì)算模型，并系統(tǒng)地闡述了有粘結(jié)預(yù)應(yīng)力弧形箱梁設(shè)計(jì)中預(yù)應(yīng)力筋的計(jì)算方法、布置特點(diǎn)及節(jié)點(diǎn)處理等技術(shù)問題，以供在類似工程設(shè)計(jì)中參考。
[關(guān)鍵詞]  弧形箱梁  有粘結(jié)預(yù)應(yīng)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