结合折线先张预应力混凝土桥梁工程的实际工况,进行了4根钢绞线梁式锚固试件的疲劳受力性能试验,对钢绞线锚固区在重复荷载作用下的粘结滑移、残余滑移以及疲劳粘结锚固强度进行了分析,验证了《公路钢筋混凝土及预应力混凝土桥涵设计规范》(JTG D62-2004)规定的钢绞线锚固长度在折线先张预应力混凝土梁疲劳受力状况下的适用性,为折线先张预应力梁的工程应用提供了依据。 Combined with the actual working conditions of prestressed concrete bridge with broken line, the fatigue test of four steel beam anchors was carried out, and the bond-slip of the anchorage zone of steel strand under repeated load was carried out. Residual slip and fatigue bond anchorage strength were analyzed to verify that the anchorage length of steel strand anchored by the Code for Design of Highway Reinforced Concrete and Prestressed Concrete Bridges and Culverts (JTG D62-2004) The applicability of the force condition provides the basis for engineering application of prestressed prestressed beams with broken lines.