变电站内超长混凝土框架结构膨胀加强带的应用  

Application of Expansion Reinforcement Belt in Super-long Reinforced Concrete Frame Structure in Substation

作　　者：马东升 张力 张宇峰 许瑜[2] MA Dong-sheng1, ZHANG Li1, ZHANG Yu-feng1, XU Yu2(1 .NorthChinaPowerEngineering Co.Ltd.,Beijing 100120,China; 2 .AC Construction Branch of State Grid Corporation of China, Beijing 100052,Chin)

机构地区：[1]中国电力工程顾问集团华北电力设计院有限公司,北京100120 [2]国家电网公司交流建设分公司,北京100052

出　　处：《工程建设与设计》2018年第7期52-54,57,共4页Construction & Design for Engineering

摘　　要：基于膨胀混凝土的理论计算模式,在变电站综合楼这一超长混凝土框架结构设计中采用连续式膨胀加强带代替后浇带,并给出HCSA膨胀加强带的具体做法,提出膨胀加强带及带外混凝土中HCSA的掺量要求和限制膨胀率的要求。综合各种因素,设计了HCSA膨胀混凝土的配合比,并提出施工注意事项。建设完成后,该综合楼结构混凝土未发现有害裂缝,效果较好。采用HCSA膨胀加强带代替后浇带,此方案在变电站内超长混凝土框架结构设计中具有普遍性。Based on the theoretical calculation model of expansive concrete, a continuous expansion reinforcement belt is used to replace the post-pouring belt in the design of the super-long reinforcement concrete frame structure of complex building in substation. A specific method of the HCSA expansion reinforcement belt and the requirement of HCSA dosage of expansion reinforcement belt and the expansion rate are given in the article. According to various factors, the mixing ratio of HCSA expansive concrete and some construction precautions were shown. After the completion of the construction, no harmful crack was found in the concrete structure of complex building. Using HCSA expansion reinforcement belt is a practical mathod in the design of super-long reinforced concrete flame structure in substation.

关 键 词：变电站 膨胀加强带 膨胀混凝土 超长混凝土框架结构 

分 类 号：TU375.4[建筑科学—结构工程]