PC钢棒加固混凝土柱设计研究  

Research on Strengthening Design for Concrete Column with PC Steel Bars

作　　者：郑文忠[1] 朱爱萍[2] 王兴叶[1] 

机构地区：[1]哈尔滨工业大学土木工程学院,哈尔滨150090 [2]中国建筑科学研究院,北京100013

出　　处：《建筑科学》2013年第1期85-88,5,共5页Building Science

基　　金：国家教育部长江学者奖励计划资助(2009-37);国家科技支撑计划子课题(2008BAE61B03-03);哈尔滨工业大学"985工程"优秀科技创新团队建设项目(2011)

摘　　要：鸡西宾馆(二期)为地下二层地上18层框架剪力墙结构。为解决混凝土实际强度未达到设计强度和新增两层荷载引起框架柱设计轴压比超限的问题,开展了PC钢棒加固混凝土柱的设计研究,提出了配置PC钢棒箍筋对混凝土轴心抗压强度设计值增量的计算方法。通过与普通钢筋加固对比得出,PC钢棒加固混凝土柱具有较好的加固效果。本文对PC钢棒加固混凝土柱的设计思路和施工措施做了较为系统的研究,可供同类工程加固设计与施工参考。Jixi hotel is an 18 -story frame-shear wall structure with 2 -story underground. In order to solve the problem that axial compression ratio exceeds the code limit, which is caused by the actual strength of concrete missing the design strength and new adding 2- story load, the research on strengthening design for concrete column with PC steel bars is carried out. The calculation method on the increment of axial compression strength for the concrete column strengthened with PC steel bars is proposed. The strengthening effect with PC steel bars is better than normal steel bar by comparing analysis. The design thought and construction scheme are studied, which can be served as reference for other similar strengthening projects.

关 键 词：PC钢棒 混凝土柱 加固 

分 类 号：TU378.4[建筑科学—结构工程] TU317