大数据时代超长IDC建筑结构温度响应分析
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摘要
随着大数据在各行各业中广泛应用,多层甚至高层超长混凝土结构的数据机楼需求显著增多。由于工艺的需求,机房区域内不允许设置结构缝,如何避免分阶段投产(使用)时不同区域温差变化引起的混凝土开裂成为首要技术难题。结合实际的工程,采用有限元分析软件,对分阶段投产(使用)策略下的数据机楼结构的温差效应进行分析,为以后的工程设计提供了依据。研究表明,降温工况对混凝土影响较大,起控制作用;半层投产与整层投产最大拉应力出现的位置不同,半层投产时的各向应力要大于整层投产时的各向应力,为避免混凝土开裂需采取措施。
With the widespread use of big data in all walks of life, demand for multi-storey or even tall IDC(Internet Data Center) building with super-long concrete structures are increasing significantly. Due to the needs of the process, structural joints are not allowed in the data computer room area. How to avoid concrete cracking caused by temperature difference changes in different areas during phased production(use) has become the primary technical problem. Based on the engineering example, finite element analysis software was used to analyze the temperature effect of IDC building structure during phased production(use), which provides evidence for future engineering design. The research shows that the cooling condition has a greater influence on the concrete, and plays a controlling role. The positions of maximum tensile stress are different on half floor use or whole floor use, the stress in each direction at the half floor use is larger than that at the whole floor use, and the measures need to be taken to avoid cracking of concrete.
With the widespread use of big data in all walks of life, demand for multi-storey or even tall IDC(Internet Data Center) building with super-long concrete structures are increasing significantly. Due to the needs of the process, structural joints are not allowed in the data computer room area. How to avoid concrete cracking caused by temperature difference changes in different areas during phased production(use) has become the primary technical problem. Based on the engineering example, finite element analysis software was used to analyze the temperature effect of IDC building structure during phased production(use), which provides evidence for future engineering design. The research shows that the cooling condition has a greater influence on the concrete, and plays a controlling role. The positions of maximum tensile stress are different on half floor use or whole floor use, the stress in each direction at the half floor use is larger than that at the whole floor use, and the measures need to be taken to avoid cracking of concrete.
引文
[1]混凝土结构设计规范:GB50010—2010[S].2015年版.北京:中国建筑工业出版社, 2015.
[2]张彤昌.超长混凝土框架结构温度应力分析与设计实践[D].青岛:青岛理工大学, 2015.
[3]胡成.某工程超长地下室混凝土结构温度应力分析[J].城市建设理论研究, 2015, 5(36):432-433.
[4]建筑结构荷载规范:GB50009—2012[S].北京:中国建筑工业出版社, 2012.
[5]王铁梦,工程结构裂缝控制[M].北京:中国建筑工业出版社, 1997.
[2]张彤昌.超长混凝土框架结构温度应力分析与设计实践[D].青岛:青岛理工大学, 2015.
[3]胡成.某工程超长地下室混凝土结构温度应力分析[J].城市建设理论研究, 2015, 5(36):432-433.
[4]建筑结构荷载规范:GB50009—2012[S].北京:中国建筑工业出版社, 2012.
[5]王铁梦,工程结构裂缝控制[M].北京:中国建筑工业出版社, 1997.