扬州商业广场筏板基础的温控措施  

TEMPERATURE-CONTROLLING MEASURES FOR RAFT FOUNDATION OF YANGZHOU COMMERCIAL PLAZA

作　　者：徐俊[1] 江昔平[1] 孟令飞 卢昌龙[1] 

机构地区：[1]安徽理工大学土木建筑学院,安徽淮南232001 [2]扬州市建苑工程监理有限责任公司,江苏扬州225000

出　　处：《工业建筑》2013年第11期92-95,共4页Industrial Construction

摘　　要：以扬州某商业广场酒店为背景,详细分析有限差分法求解大体积混凝土温度场原理。通过建立有限差分法求解大体积混凝土温度场的模型,对筏板基础大体积混凝土温度场问题进行求解。同时还从基础筏板大体积混凝土中掺入(WC)引气缓凝高效减水剂、大体积混凝土台阶式浇筑法以及"可呼吸方法"缓解底板约束等方面,对温控防裂施工技术措施进行研究,并将求解的温度场结果与实测结果对比,两者结果基本一致。Based on a commercial plaza hotel in Yangzhou, it was analyzed in detail the principle of using finite difference method to solve the mass concrete temperature field. Through the establishment of the finite difference method model, it was solved this raft foundation mass concrete temperature field. Meanwhile it was studied the technical measures for thermal control by incorporating WC air-entraining high efficient water reducing agent into mass concrete, using stepped pouring method and respirable structure to mitigate the constraint of the baseplate. The solved results of the mass concrete temperature field were compared with the measured results, they were basically the same.

关 键 词：大体积混凝土 有限差分法 筏板基础 温度裂缝 

分 类 号：TU755[建筑科学—建筑技术科学]