前言随着交通量的逐年增加,特别是车辆的大型化、重型化,以及自然条件的侵蚀,对公路、桥梁的损伤破坏严重,同时也增加了养护工作的复杂性。为了保持车辆畅通和安全,必须经常对公路、桥梁的各部分进行检查维护。本文简要介绍预应力混凝土和钢筋混凝土桥梁的支座和伸缩缝的检查养护工作。 Preface With the year-by-year increase of traffic volume, especially the large-scale and heavy-duty vehicles and the erosion of natural conditions, the damages to roads and bridges are seriously damaged and the complexity of maintenance work is also increased. In order to keep the vehicles clear and safe, the roads and bridges must be checked and maintained frequently. This article briefly introduces the inspection and maintenance of bearings and expansion joints of prestressed concrete and reinforced concrete bridges.