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聶建國 高璀旭 周天然
（清華大學(xué)土木系 北京 100084）[提要] 對預(yù)應(yīng)力鋼-混凝土組合梁的應(yīng)用發(fā)展作了簡要的介紹。依據(jù)現(xiàn)有的研究成果，尤其是對預(yù)應(yīng)力簡支
組合梁的試驗研究成果進行了介紹和評價。同時通過對算例的計算分析，比較了普通組合梁和預(yù)應(yīng)力組合梁的受力性能，以及計算方法之間的差異，這對預(yù)應(yīng)力組合梁的設(shè)計有一定的參考價值。
[關(guān)鍵詞] 預(yù)應(yīng)力 組合梁 預(yù)應(yīng)力增量 承載力 計算方法The development of prestressed steel-concrete composite beam is presented concisely. Because the appropriate design method of prestressed composite beam is not available, the existing research achievements, especially of the simple supported prestressed composite beam are presented and evaluated. An example is shown to analyze and compare the common composite beam and prestressed composite beam, and the difference between the methods of calculation is presented, which may be helpful to the design of prestressed composite beam.
Keywords: prestress; composite beam; prestressing increment; flexural capacity; predicting method
