The evaluation of the large-scale bridge is complicated, and the evaluation methods are limited in theory, it is very difficult to ensure the reliability of the result.
由于大型桥梁评估的复杂性，目前各种评估方法在理论上均有一定的局限性，单纯应用某一种方法进行评估，很难保证评估结果的可靠性。
The content and references of the detection and evaluation, the methods of the inspection for existing Bridges, the substances and attentions of the bridge static and dynamic load test are introduced.
介绍对既有桥评估的主要内容、依据，对既有桥现状进行检查的方法，以及对既有桥梁进行静动载检测的内容及注意事项。
Models of reliability analysis were established and calculation methods of the models were discussed with consideration of load history for the evaluation of existing bridge structures.
针对既有桥梁结构的特点，建立了考虑荷载历史的可靠度分析模型，并讨论了其计算方法。
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