自从上个世纪五十年代以来我国范围指捏首座混凝土桥梁投入建设以来,尤其是在我国进入到了改革开放的崭新时代之后,我国范围之内投入建设的预应力混凝土桥梁的数量呈现出来一种不断增多的趋势,但是现阶段我国范围之内处于运行状态的桥梁一般情况之下都是存在不同程度的偏差的。 Since the 1950s, the scope of our country refers to the construction of the first concrete bridge, especially since our country entered a brand-new era of reform and opening up. The number of prestressed concrete bridges put into operation within our country has been continuously increasing However, at present, there are varying degrees of deviation under the general conditions of the bridges in operation within the scope of our country at this stage.