文章通过30m预应力混凝土实箱梁承载力试验及梁体外表所产生的现象分析,为广大桥梁工作者提供实梁破坏的直观印象,使其了解梁体从开始工作到完全破坏要经过哪几个阶段、每个阶段工作载荷的大小、所表现出的力学性能、梁体外表产生什么样的现象、最终能承受多大的荷载等。 Through the 30m prestressed concrete box girder bearing capacity test and the appearance of the beam body produced by the phenomenon analysis, for the majority of bridge workers to provide a visual impression of solid beam damage to make it understand the beam body from the beginning to complete destruction of which to go through A stage, the size of each stage of the work load, the performance of the mechanical properties of the beam body appearance what kind of phenomenon can eventually withstand the much load.