It illustrates the appraisal and evaluation of bridge structure, puts forward the principle of the reform and reinforcement of bridge structure, and illustrates the reinforcement and reform of bridge structure with projects, so as to accumulate experience for bridge reinforce-merit and prolong the life and echoic benefit of bridge.%阐述了桥梁结构的鉴定评估,提出了桥梁改造加固方案设计的原则,通过具体工程实例,对桥梁加固改造进行了说明,以积累桥梁加固经验,延长桥梁的使用寿命和经济效益.
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