预应力托梁抽柱在房屋改造中的应用  

APPLICATION OF PRESTRESSED JOIST BEAMS FOR REMOVING COLUMN IN REFORM OF BUILDINGS

作　　者：王琴[1] 崔庆海[1] 张鑫[1] 

机构地区：[1]山东建筑大学工程鉴定加固研究所,济南250014

出　　处：《工业建筑》2010年第5期143-145,共3页Industrial Construction

摘　　要：青岛奥帆基地西地块商业中心,地下2层,地上3层(局部4层),框架结构。由于商业布局改变,需拆除1～2层共6个框架柱,拆除后框架梁跨度18m。采用有粘结预应力加固原有框架梁,取得较好效果。可供类似工程的加固设计参考。Six columns on the first and second floors of a commercial building in Qingdao are required to be removed for functional purpose.The structural form of the building is RC frame,having 2 stories in the basement and 3 stories above the ground（4 stories partially）.Due to the columns removed,the span of the corresponding beam is increased to 18 meters.Bonded prestress technique is used to strengthen the original frame beam in order to sustain the increased loads,good result is obtained.The method used in this project can be referred by the reinforcing design of similar projects.

关 键 词：抽柱 有粘结预应力 框架 

分 类 号：TU746.3[建筑科学—建筑技术科学]