方  德  平
    （华侨大学 福建泉州 362011）

[提要]  讨论了四种可行的多层现浇预应力砼框架的张拉方案，计算了不同张拉方案对框架结构综合弯矩的影响，计算表明：不同张拉方案对梁的综合弯矩的影响很小，对柱的影响显著；根据柱弯矩最小的原则，对四种张拉方案进行了优化分析。
[关键词]  框架结构 预应力  张拉 综合弯矩 优化

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