高层建筑基础大体积混凝土结构抗裂监测分析  

Monitoring and Analysis of Crack Resistance of Mass Concrete Structure of High-rise Building Foundation

作　　者：万国锋 Wan Guofeng(Guozheng Engineering Consulting(Jiangsu)Co.Ltd.,Nanjing,Jiangsu 210000)

机构地区：[1]国正工程咨询(江苏)有限责任公司,江苏南京210000

出　　处：《江西建材》2024年第12期113-116,共4页

摘　　要：文中以江苏南京某大型商业综合大厦为例,通过在混凝土仓块不同特征点处设置监测点,对施工过程中混凝土仓块温度和应力随时间变化发展规律进行分析,并提出有效的裂缝控制措施。实践表明,混凝土仓块不同位置处温度随时间变化的规律基本相同,温度变化速率与散热边界有关,混凝土凹角处较其他位置更容易产生温度裂缝,在施工过程中应重点关注。Taking a large commercial complex building in Nanjing,Jiangsu as an example,this paper analyzes the variation of temperature and stress of concrete silo block with time by setting monitoring points at different characteristic points of concrete silo block during construction,and puts forward effective crack control measures.Practice shows that the temperature changes with time at different positions of concrete silo block are basically the same,the temperature change rate is related to the heat dissipation boundary,and the temperature cracks are more likely to occur at the concave corner of concrete than other positions,which should be paid attention to in the construction process.

关 键 词：大体积混凝土结构 温度监测 应变监测 跳仓法 

分 类 号：TU74[建筑科学—建筑技术科学]