由于钢筋混凝土系杆拱桥既美观又经济,因此该桥型在我国上世纪80、90年代被大量采用并建成。为了确保此类桥梁运营过程中的安全,需要更换吊杆以及配套的锚具。本文结合上世纪90年代初建成的福建龙岩溪南桥吊杆更换的实例,介绍了该桥吊杆更换方案、控制目标以及相应注意事项。 As the reinforced concrete tied arch bridge is both beautiful and economical, so the bridge type in our country in the last century 80’s and 90’s has been widely used and built. In order to ensure the safety during the operation of such bridges, it is necessary to change the boom and the supporting anchorage. In this paper, an example of replacing the suspension rod of South Bridge of Longyan in Fujian Province in the early 90s of the last century is introduced. The replacement plan, control target and corresponding precautions of the suspension rod are introduced.