肋拱桥拱肋结构表观缺损状况评定标准研究

应用损伤理论,在考虑材料非线性对拱肋承载能力影响的基础上,采用ABAQUS有限元软件模拟钢筋混凝土肋拱桥拱肋开裂损伤状态,对拱顶附近裂缝数量对拱肋承载能力的影响进行了仿真分析,根据有限元的模拟结果对拱肋技术状况评定标准进行了扩充,以便作出准确评估。

Study on the defect situation evaluation standard of ribbed arch bridge arch rib

With defect theory, based on considering material non-linear influences on ribbed arch bearing capacity, the arch rib crack defect situation of reinforced eoncrete fibbed arch was simulated with ABAQUS finite element software. The arch top crack amount influences on ribbed arch bearing capacity was analogue simulated, the ribbed arch technical situation evaluation standard was extended according to finite element simulation result, which in order to have accurate evaluation.