大面积多层地下空间侧墙早期应力仿真分析及裂缝控制  

Sidewall early stress simulation analysis and crack control technology in large- scale multi- storey underground space

作　　者：欧阳东[1,2] 易宁[1] 萧澎伟[1] 潘攀[2] 李晓铭[1] 鲁刘磊[1] 

机构地区：[1]暨南大学理工学院"重大工程灾害与控制"教育部重点实验室,广东广州510632 [2]暨南大学理工学院材料系,广东广州510632

出　　处：《混凝土》2010年第9期118-120,共3页Concrete

摘　　要：通过基于ANSYS的有限元仿真分析以及混凝土材料特性研究,深入剖析超高层建筑中大面积多层地下空间侧墙早期裂缝产生与发展的机理,探讨了利通广场地下空间侧墙早期裂缝的控制技术。在-4到-1层地下空间侧墙工程中应用聚丙烯纤维混凝土总计约4000m3,实践证明:聚丙烯纤维混凝土大大减少了侧墙的温度-干缩裂缝,满足了大面积多层地下空间工程的抗裂抗渗要求。Based on the ANSYS finite element analysis and simulation study of the material properties of concrete,the mechanism of emergence and development of the early crack have been analyzed in depth,in the sidewall of large-scale multi-storey underground space.And the early cracks in control technology of sidewall has been explored,in Li Tong Plaza.In-4 to-1 layer side wall construction,the underground space of polypropylene fiber concrete application of total amount is large,about 4 000 m^3,the practice of proof：polypropylene fiber reinforced concrete greatly reduces the side-wall temperature-shrinkage cracks in the underground space of the project to meet the multi-layer anti-crack and anti-seep requirements.

关 键 词：大面积地下空间 早期裂缝 有限元 纤维混凝土抗裂抗渗 

分 类 号：TU528.01[建筑科学—建筑技术科学]