冰冻海域全寿命周期的桥梁结构耐久性关键技术研究

Research on Key Technology of Life Cycle Bridge Structural Durability in Freezing-Thawing Marine Environment

将全寿命周期的结构耐久性理念贯穿设计、施工、运营及维护的全过程。通过耐久性方案的合理设计、施工过程的精细控制、关键参数的在线监测、结构状态的科学评估和大桥管养的有效及时等全寿命周期的过程控制,全面提高青岛海湾大桥的运营效率,实现大桥全寿命周期成本最优配置。通过耐久性在线监测,动态评估结构剩余使用寿命,确定技术可行、经济合理的防腐蚀技术措施,最终建立基于动态数据的桥梁管养技术。

The idea of life cycle structural durability is reflected in the whole process of design,construction,operation and maintenance.The operation efficiency of Qingdao Bay Bridge would be largely improved and the life cycle cost would be optimized and allocated through reasonable design of durability scheme,intimate control of construction process,on-line monitoring of key parameters,scientific assessment of structure condition,and implement of effective and opportune bridge maintenance measures.The effective and economic anti-corrosion measures can be confirmed and the management and maintenance technology of Qingdao Bay bridge based on the dynamic data abstracted from the real structure body would be established,through durability on-line monitoring,residual life assessment.