九江文化中心自由曲面钢屋盖结构设计

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英文篇名：Structural design on the free-form steel roof for Jiujiang Cultural Centre 中文刊名：建筑结构 英文刊名：Building Structure 作者：韩重庆 ; 黄桂新 ; 陈浩曼 ; 张翀 英文作者：Han Chongqing1 ; Huang Guixin2 ; Chen Haoman2 ; Zhang Chong1(1 Architects & Engineers Co. ; Ltd.of Southeast University ; Nanjing 210096 ; China ; 2 College of Civil Engineering ; Southeast University ; Nanjing 210096 ; China) 中文关键词：双层网壳 ; 管桁架 ; 树状支撑 ; 杂交结构 ; 多维多点地震响应分析 英文关键词：double-layer reticulated shell ; tube truss ; dendritic support ; hybrid structure ; multi-dimensional and multi-support earthquake excitation analysis 出版日期：2013-03-10 机构：东南大学建筑设计研究院有限公司;东南大学土木工程学院; 年：2013 期：05 出版单位：建筑结构

摘要

九江文化中心钢屋盖外形为造型轻盈的自由曲面,根据不同部位的受力特点,采用由双层螺栓球网壳、空间管桁架、树状支撑系统杂交而成的空间网格结构。重点介绍了钢屋盖的结构体系布置、静载分析、动力特性、整体稳定及多维多点地震响应分析。分析结果表明:关键部位的管桁架有效地增强了结构的整体刚度;树状支撑与大跨屋盖共同形成了高效的拱形受力机理;跨越多栋建筑的钢屋盖需进行多维多点地震响应分析;曲面的面外变形可显著地降低温度应力。
The shape of steel roof for Jiujiang Cultural Centre is light free-form surface.According to the mechanical characteristics of different parts,the steel roof adopts spatial latticed structure which is consisted of double-layer reticulated shell,space tube truss and dendritic support system.Structural layout,static analysis,dynamic characteristic,overall stability and multi-dimensional and multi-support earthquake excitation analysis were mainly introduced.The results indicate that: the tube truss arrangement in key positions enhances the structural rigidity effectively;the dendritic support together with large-span roof is served as arched stress mechanism;the steel roof which spans multiple buildings needs multi-dimensional and multi-support earthquake excitation analysis;out-of-plane deformation of free-form structure reduces temperature stress significantly.

引文

[1]GB50011—2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.
    [2]GB50068—2001建筑结构可靠度设计统一标准[S].北京:中国建筑工业出版社,2001.
    [3]JGJ7—2010空间网格结构技术规程[S].北京:中国建筑工业出版社,2010.
    [4]陈浩曼.九江文化中心不规则空间网壳的抗震关键性能研究[D].南京:东南大学,2012.