某电厂除尘器钢梁超载事故分析及加固处理  

ACCIDENT ANALYSIS AND REINFORCEMENT OF STEEL BEAM IN DUST CATCHER IN A POWER PLANT

作　　者：金立赞[1] 姜迎秋[1] 张宾[2] 

机构地区：[1]中冶集团建筑研究总院华东分院,上海200940 [2]安徽省建筑设计研究院,合肥230001

出　　处：《钢结构》2006年第4期78-80,共3页Steel Construction

摘　　要：针对某电厂除尘器主钢梁严重超载的情况,提出体外预应力桁架加固方案。解决了增加中柱无法施工的问题,又对生产运行基本不产生影响。此方案能够很好地控制加固后的结构应力、位移。实践表明,这种体外预应力张弦桁架加固技术可供参考和推广。In order to deal with the problem of severe overloading on a main steel beam of dust catcher in a power plant, an external prestress truss structure for reinforcement is presented. It resovles the difficulty of adding mid column without bad influence on production. This solution can easily control the structure stress and displacement after reinforcement. The practice indicates that this solution can be referenced and popularized.

关 键 词：体外预应力桁架 改造加固 预应力张拉控制 

分 类 号：TU746.3[建筑科学—建筑技术科学] S229.1[农业科学—农业机械化工程]