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[提要]  通過(guò)兩根體外預(yù)應(yīng)力梁的加載試驗(yàn)，對(duì)試驗(yàn)的全過(guò)程進(jìn)行了跟蹤測(cè)試，并把理論分析結(jié)果與實(shí)測(cè)結(jié)果進(jìn)行了比較。對(duì)于次彎矩的考慮提出了自己的看法。這對(duì)體外預(yù)應(yīng)力及無(wú)粘結(jié)預(yù)應(yīng)力連續(xù)梁的設(shè)計(jì)有一定的參考價(jià)值。
[關(guān)鍵詞]  體外預(yù)應(yīng)力 連續(xù)梁 次彎矩 極限狀態(tài)

Based on the test of two external prestressed concrete beams and the data recorded during the test, the authors analysed the beams theoretically and compared the theoretic results with the test results and put out the opinion on the second moment of prestressed concrete structures, which may be helpful to the design of unbonded or external prestressed concrete structures.
Keywords:  external prestressing; continuous beam; second moment; ultimate state