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中文摘要：
东岗镇黄河大桥是重要的交通枢纽,对其进行耐久性评估和寿命预测对于确保包兰铁路的正常运营有极其重要的意义.对大桥结构技术状况进行了详细的检测与调查,测试了大桥主要构件混凝土保护层厚度、混凝土强度、及混凝土碳化深度和钢筋锈蚀程度,分析了大桥混凝土结构的主要病害及其产生原因.基于大桥环境条件和主要构件实测结果,分析了大桥主要构件的碳化可靠指标和剩余寿命,为大桥的继续使用与维修加固提供了科学依据.
英文摘要：
The Donggang Yellow River Railway Bridge is a transportation hub,and the durability evaluation and life prediction of the bridge is extremely significant for ensuring the normal operation of the railway.The detailed detection and investigation were given to the structurd technical condition of the bridge,the thickness of concrete protective layer,concrete strength,carbonation depth,and the reinforcement corrosion of the main component of the bridge were detected,and the main diseases and their causes of the bridge were analyzed.Based on the environmental conditions and the detection results of the bridge,the carbonation reliability index and residual life prediction of the main component of the bridge were analyzed,and scientific basis was provided to continue using repairing,and reinforcing the bridge.
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