摘要
通过某机房改造工程,介绍了体外预应力加固简支梁在工程中的应用。采用直接计算承载力增量的计算方法,对体外预应力钢绞线所提供承载力增量进行计算分析。结果表明,体外预应力加固简支梁可以有效地提高结构的承载能力,同时也提高了结构的正常使用极限状态。采用直接计算承载力增量的方法比传统计算方法简便,计算公式直观,结果可信。
Application of external pre-stressing in strengthening is illustrated through the structure rehabilitation project of some computer rooms.Increment of load carrying capacity provided by external pre-stressing strand is analyzed by direct calculation method.The analysis results show that the external pre-stressing effectively improve the load carrying capacity of the structure and the serviceability limit state of the structure.With the comparison of traditional calculation method,the direct calculation of the increment of load carrying capacity is simple,by which the formulas are intuitive and results is credible.
出处
《建筑科学》
北大核心
2013年第7期7-10,共4页
Building Science
关键词
体外预应力
结构加固
简支梁
承载力增量
external pre-stressing
structure rehabilitation
simple-span beam
increment in load-carrying capacity
