to study the flexural behavior, ultimate bearing state and laws of internal force redistribution of prestressed concrete continuous beams cast by different construction methods, the model tests for three pieces of the continuous beams were carride out, in which three kinds of the construction methods, such as those of lowering formwork supports at one time, transferring simply-supported structure into the continuous one and casting the beam by cantilever construction, were considered 摘要為研究不同施工方法下預(yù)應(yīng)力混凝土連續(xù)梁的彎曲性能、極限受力狀態(tài)及內(nèi)力重分布規(guī)律,進(jìn)行了3根連續(xù)梁模型試驗(yàn),分別考慮一次落架、簡(jiǎn)支變連續(xù)和懸臂施工3種施工方法。