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鄂尔多斯体育馆斜筒柱施工技术
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作者 王梦圆 闫勇先 《混凝土与水泥制品》 北大核心 2014年第7期79-83,共5页
以鄂尔多斯市体育中心体育馆工程为依据,分析了斜筒柱的关键施工技术的难点,针对该技术要点提出了相应的施工措施,同时还介绍了斜筒柱的施工技术,包括斜筒柱钢筋工程、模板及支撑架施工、混凝土工程。
关键词 体育中心 斜筒柱 施工技术
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杭州世茂智慧之门结构设计问题探讨 被引量:1
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作者 桂堃 《建筑钢结构进展》 CSCD 北大核心 2019年第2期75-84,共10页
结合杭州世茂智慧之门建筑设计的特殊要求,分别对4种结构方案进行了比选,对各方案的优、缺点以及经济性进行了详细的比较。比选结果表明,带斜撑巨柱外框+环带桁架+核心筒方案是最优的结构方案。此外,介绍了带单向斜撑巨柱外框的设计要点... 结合杭州世茂智慧之门建筑设计的特殊要求,分别对4种结构方案进行了比选,对各方案的优、缺点以及经济性进行了详细的比较。比选结果表明,带斜撑巨柱外框+环带桁架+核心筒方案是最优的结构方案。此外,介绍了带单向斜撑巨柱外框的设计要点,主要包括:1)施工顺序和混凝土收缩徐变长期变形影响;2)斜撑在转折处的水平力传递。利用有限元软件ETABS探讨了施工顺序和混凝土收缩与徐变等因素对带斜撑外框核心筒结构方案的楼面平整度和结构构件内力的影响。巨型斜撑在转折处会在楼板处产生很大的水平推力,通过加强楼板来解决此水平推力的传递是带单向斜撑框架设计的重点。 展开更多
关键词 超限高层建筑 撑巨外框-体结构 环带桁架 混合结构 施工顺序 混凝土收缩和徐变 水平推力
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Three-Dimensional Numerical Simulation of Natural Convection Heat Transfer in an Inclined Cylindrical Annulus 被引量:2
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作者 J.G. wei W.Q. Tao (School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China) 《Journal of Thermal Science》 SCIE EI CAS CSCD 1996年第3期175-183,共9页
A numerical study of natural convection heat transfer in an inclined cylindrical annulus has been conducted. The inner cylinder of the annulus is maintained at uniform heat flux and the outer cylinder at constant tem... A numerical study of natural convection heat transfer in an inclined cylindrical annulus has been conducted. The inner cylinder of the annulus is maintained at uniform heat flux and the outer cylinder at constant temperature. The two end walls are assumed to be insulated. A numerical code has been developed to calculate the steady state three-dimensional natural convection in an inclined cylindrical annulus, and the research emphasis is placed on the influences of inclination angle or and modified Rayleigh number Ra on the natural convection heat transfer in the annulus. Computations were carried out in the ranges of 0°α 90*, 2.5×105 Ra* and Pr=0.7 with fixed aspect ratio of H=28.97 and radius ratio of K= 3.33. The numerical results are compared with the experimental correlations from the literature and the inclination angle effect on heat transfer is found to be insignificant. Detailed results of heat transfer rate, temperature, and velocity fields are presented for the case of or α=45° and discussion is also made concerning the comparison between the numerical and experimental results for the specific case of α=90°. 展开更多
关键词 enclosure flows natural convection numerical methods
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