预应力混凝土组合箱梁桥损伤识别方法研究

该文运用动力识别指标——柔度法和模态应变法分别对某五跨预应力混凝土组合箱梁桥的损伤识别进行了研究,对比分析了两种方法的识别效果,结果表明:对于连续组合箱梁结构,柔度差法比模态应变能法的识别效果更好。

Study on Damage Identification Method of Prestressed Concrete Composite Box Girder Bridge

The article uses the dynamical identification index-flexibility method and modal strain method separately to study the damage identification of a 5-span prestressed concrete composite box girder bridge,compares and analyzes the identification results of two methods.The results make clear that the identification effect of flexibility difference method is better than modal strain energy method for the continuous composite box girder structure.