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-  2017 

核心筒超前施工层数分析方法研究 Analysis method of advanced construction layers for core tube

Keywords: 超高层,核心筒,超前施工,ANSYS,局部稳定

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Abstract:

目前国内外学者对于确定超前施工层数方法的研究还比较少,现行规范中没充分考虑各种墙肢之间连接,因此规定的长度系数取值往往偏大,以至于确定的超前施工层数偏低.基于安全与经济两方面的考虑,从《高规》附录D的规定出发,根据实际的结构和荷载特点,运用ANSYS软件对超前施工核心筒进行屈曲模拟分析,根据数值模拟结果重新计算考虑墙肢实际支撑条件后的计算长度系数,运用得到的实际计算长度系数,根据规范计算出等效竖向均布荷载,与有限元模型根据实际荷载计算得到的等效竖向均布荷载进行比较,看是否满足规范要求.增加或减少超前施工层数进行试算,比较分析考虑墙肢实际支撑条件前后核心筒墙肢的稳定性,最终得到最大超前施工层数.以武汉中心核心筒超前施工为例进行研究,结果表明,所述的比较方法是可行有效的,能得到既安全又经济的最优超前施工层数

References

[1]  张坚,陈国成.混凝土筒体先于外钢框架施工阶段结构分析[J].结构工程师,2005,21(2):22-30.Zhang Jian,Chen Guocheng.Structural design of hybrid structures when concrete tube is first-built[J].Structural Engineers,2005,21(2):22-30.
[2]  陈灿.高层钢框架—混凝土核心筒混合结构体系施工期间变形及其控制研究[D].上海:同济大学,2007.Chen Can.Research on deformation and control during construction of high-rise steel frame-concrete core wall mixed structure[D].Shanghai:Tongji University,2007.
[3]  朱川海,方朔,赵昕,等.超高层建筑核心筒超前施工结构性能分析与设计[J].建筑结构,2013,(S1):985-990.Zhu Chuanhai,Fang Shuo,Zhao Xin,et al.Performance analysis and design of built in advance tube of super tall building[J].Building Structure,2013,(S1):985-990.
[4]  苗吉军,顾祥林,方晓铭.高层建筑混凝土结构施工活荷载的统计分析[J].建筑结构,2002,(03):7-9.Miao Jijun,Gu Xianglin,Fang Xiaoming.Statistical analysis of the construction live loads of high-rise reinforced concrete buildings[J].Building Structure,2002,(03):7-9.
[5]  周健,陈锴,张一锋,等.武汉中心塔楼结构设计[J].建筑结构,2012,(05):8-12.Zhou Jian,Chen Kai,Zhang Yifeng,et al.Structural design on Wuhan Center Tower[J].Building Structure,2012,(05):8-12.
[6]  GB 50009-2012建筑结构荷载规范[S].GB 50009-2012Load Code for the Design of Building Structures[S].
[7]  丁洁民,吴宏磊,赵昕.我国高度250m以上超高层建筑结构现状与分析进展[J].建筑结构学报,2014,(03):1-7.Ding Jiemin,Wu Honglei,Zhao Xin.Current situation and discuss of structural design for super high-rise builds above 250 min China[J].Journal of Building Structures,2014,(03):1-7.
[8]  齐建国,王文可,苏峰.超高层建筑结构体系在我国的应用[J].山西建筑,2008,34(5):109-110.Qi Jianguo,Wang Wenke,Su Feng.The application of super-high building structural system in China[J].Shanxi Architecture,2008,34(5):109-110.
[9]  沈瑞宏,陈婷,颜潇潇.高层、超高层建筑的结构体系[J].工业建筑,2009,(S1):402-405.Shen Ruihong,Chen Ting,Yan Xiaoxiao.Structural systems of tall buildings[J].Industrial Construction.2009,(S1):402-405.
[10]  赵群昌.某超高层结构的整体稳定分析及底层柱计算长度系数确定[J].特种结构,2013,30(1):13-17.Zhao Qunchang.Global stability analysis and bottom column length coefficient calculation of a high-rise building[J].Special Structures,2013,30(1):13-17.
[11]  DIN 1045-2-2008混凝土、加筋和预应力混凝土结构.第2部分:混凝土.规范、性能、生产和合格性.DIN EN206-1的应用规则[S].DIN 1045-2-2008 Concrete,Reinforced and Prestressed Concrete Structures——Part 2:Concrete-Specification,Properties,Production and Conformity-Application rules for DIN EN 206-1[S].
[12]  赵昕,刘南乡,孙华华,等.超高层混合结构施工阶段结构性能评估与控制[J].建筑结构学报,2011,32(7):22-30.Zhao Xin,Liu Nanxiang,Sun Huahua,et al.Structural performance assessment and control of super high-rise building during construction[J].Journal of Building Structures,2011,32(7):22-30.
[13]  吕西林,程明.超高层建筑结构体系的新发展[J].结构工程师,2008,(2):99-106.LüXilin,Cheng Ming.Recent development of structural systems for super tall buildings[J].Structural Engineers,2008,(2):99-106.
[14]  赵挺生,李树逊,顾祥林.混凝土房屋建筑施工活荷载的实测统计[J].施工技术,2005,(07):63-65.Zhao Tingsheng,Li Shuxun,Gu Xianglin.On-site measure and statistic of live construction load of concrete buildings[J].Construction Technology,2005,(07):63-65.
[15]  周杰刚,崔旭旺,王开强,等.武汉中心可变微凸支点匣套型顶升模架体系关键施工技术[J].施工技术,2013,(19):12-17.Zhou Jiegang,Cui Xuwang,Wang Kaiqiang,et al.Key construction technology of the variable micro bump support covered intelligent control jacking formwork applied in Wuhan Center[J].Construction Technology,2013,(19):12-17.

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