[摘　要]　特大型桥梁的建设对安全管理提出更高的要求，构建合理的安全管理机制尤为重要。以马鞍山长江大桥为例，系统分析其安全预警管理机制中的一校一会一志制度、三阶段危险源辨识与防控和单元预警法，以期为特大型桥梁工程构建合理的安全预警管理机制提供借鉴。

[关键词]　特大桥梁；安全预警机制；危险源辨识；单元预警

Abstract: The construction of major bridges makes higher requirements for safety management, building reasonable safety early-warning management mechanism seems to be particularly important. Taking the major bridge—Ma′anshan Yangtze River Bridge as a study object, this paper builds its security early-warning management mechanism, systematically analyses the three implementations of the safety early-warning, they are “one school, one meeting, one note”, three stages of hazards identification and control as well as unit early-warning method, in order to provide a  reference for designing proper security early-warning management mechanism for China′s major bridges.

Key words: major bridge; safety early-warning mechanism; hazards identification; unit early-warning

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