南宁华润中心东写字楼超厚底板大体积混凝土温度裂缝控制技术  

Temperature Crack Control of Super Height Floor Mass Concrete in East Office Building in Nanning Huarun Center

作　　者：唐际宇[1] 林忠和[1] 陈勇辉[1] 唐阁威[1] 郑巍 

机构地区：[1]中国建筑第八工程局有限公司广西分公司,广西南宁530022

出　　处：《施工技术》2018年第4期10-13,共4页Construction Technology

摘　　要：以南宁华润中心东写字楼超高层项目为例,结合本工程底板超厚、电梯井超深的结构特点,介绍了超高层建筑底板大体积混凝土温度裂缝控制成套施工技术,此技术包括原材料选择、配合比设计、温度场仿真预测分析、混凝土浇筑、混凝土养护和测温监控,比较分析了温度场仿真预测结果与监控实测数据。结果表明:底板温度场有限元计算结果与实测结果吻合较好,利用ANSYS有限元软件对底板大体积混凝土温度场预测分析是可行的,实践证明该套施工技术能够有效控制温度裂缝的产生,保证了超厚底板大体积混凝土的施工质量。For the super high-rise east office building of Nanning Huarun Center as an example,combined with super height floor and super depth elevator shaft,sets of temperature cracks control technology of mass concrete of building floor are introduced which includes raw materials selection,mix proportion design,temperature field prediction analysis,concrete pouring and curing and temperature measuring control. And simulation data and monitoring ones of temperature field are compared and analyzed. The results show that the finite element simulation data of the floor temperature by ANSYS is consistent with the measuring ones,the set of construction technology can effectively control temperature cracks to assure construction quality of super height mass concrete.

关 键 词：高层建筑 底板 大体积混凝土 温度裂缝 施工技术 

分 类 号：TU745.1[建筑科学—建筑技术科学]