三峡水利枢纽左岸厂房共布置2台1200t/125t桥式起重机,桥机跨度33.6m。该桥机是目前世界上单钩起吊最重的桥机,为了保证桥机主梁在安全状态下工作,对桥机主梁强度和刚度安装了实时检测与监控系统。对桥机主梁的实时检测与监控系统进行一些介绍,为国内水电站同类大型桥机实行自动化监控提供一些有益的资料。 Two units of 1200t / 125t overhead crane are arranged on the left bank of the Three Gorges Project, with a bridge span of 33.6m. The bridge crane is currently the world’s single hook lifting the heaviest bridge machine, in order to ensure the bridge girder work in a safe state, the strength and stiffness of the bridge machine girder installed real-time detection and monitoring system. This paper introduces some real-time detection and monitoring systems of bridge girder main girder, and provides some useful information for the automation monitoring of similar large bridge machines in China.