分批置换混凝土在高层框剪结构加固中的应用实例  

APPLICATION OF CONCRETE-REPLACING METHOD IN REINFORCEMENT OF TALL FRAME-SHEAR WALL STRUCTURE

作　　者：周晓悦[1] 章雪峰[1] 

机构地区：[1]浙江工业大学建筑规划设计研究院有限公司,杭州310014

出　　处：《建筑技术》2012年第4期365-367,共3页Architecture Technology

基　　金：浙江省重大科技专项资助项目(2010C13012)

摘　　要：某20层框架剪力墙结构办公楼位于7度抗震设防区,在施工至第10层时,发现第4层4片墙柱混凝土强度严重偏低,不能满足原设计C40的强度要求。经过比选,确定采用分批置换混凝土法进行加固,通过合理布置临时支撑,采用具有早强、高强、自流性的灌浆料浇筑,并对加固过程进行全程监测,取得良好的加固效果。A 20-story office building of frame-shear wall structure was being built in 7 degree area. When the 10th floor was being built, it is found that 4 wall-columns＂ grade of concrete strength was less than C40 in the 4th floor. The concrete-replacing method was used to solve this problem. The effect of reinforcement is good with the reasonable temporary supports and the grouting material which is early-strength, high-strength and flow automatically. All of the reinforcement process was in the monitoring.

关 键 词：混凝土置换 框架剪力墙 临时支撑 灌浆料 加固 粘钢 

分 类 号：TU746.3[建筑科学—建筑技术科学]