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      方  德  平
    （華僑大學(xué) 福建泉州 362011）

[提要]  討論了四種可行的多層現(xiàn)澆預(yù)應(yīng)力砼框架的張拉方案，計(jì)算了不同張拉方案對(duì)框架結(jié)構(gòu)綜合彎矩的影響，計(jì)算表明：不同張拉方案對(duì)梁的綜合彎矩的影響很小，對(duì)柱的影響顯著；根據(jù)柱彎矩最小的原則，對(duì)四種張拉方案進(jìn)行了優(yōu)化分析。
[關(guān)鍵詞]  框架結(jié)構(gòu) 預(yù)應(yīng)力  張拉 綜合彎矩 優(yōu)化

Four feasible tensioning plans of multi-storey cast-in-plale prestressed frame are discussed. The effect of different tensioning plans on the resultant moment of the frame structure is calculated. lt is pointed out the effect of different tensiorung plans on the beam's resultant moment is very small and on the column's resultant moment is remarkable.Based on the principle of minimizing column's moment,the four tensioning plans are analyzed optimally.
Keywords: insitu concrete; frame; prestress; tensioning; resultant  moment; optimization