北京中关村金融中心连廊结构设计
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摘要
北京中关村金融中心连廊工程平面及立面均为弧形,支承在不同的结构主体上,体型独特,支承条件复杂。主体采用大跨度空间钢桁架结构体系,屋面采用异型空间刚架结构体系。在施工阶段,主桁架支座设计成纵向可自由滑动的滑动铰支座,以释放部分内力。采用抗震球形钢支座消除相对位移对各独立主体结构产生的影响。由于屋面风荷载效应显著,通过风洞试验确定连廊屋面的风压分布情况。
The spatial gallery of Zhongguancun Financial Center of Beijing is very special for the planar and the supporting conditions are very complicated.Large span steel spatial truss system is adopted for the floor structure and allotype gabled frames are adopted for the roof structure.In order to partial release the internal forces,the bearing of the main trusses are designed as free sliding bearings in construction stage.Special bearing devices are adopted to overcome differential displacements between independent buildings.As the response of the structure under wind loads is significant,the distribution of wind pressure on the roof is determined by wind tunnel test.
The spatial gallery of Zhongguancun Financial Center of Beijing is very special for the planar and the supporting conditions are very complicated.Large span steel spatial truss system is adopted for the floor structure and allotype gabled frames are adopted for the roof structure.In order to partial release the internal forces,the bearing of the main trusses are designed as free sliding bearings in construction stage.Special bearing devices are adopted to overcome differential displacements between independent buildings.As the response of the structure under wind loads is significant,the distribution of wind pressure on the roof is determined by wind tunnel test.
引文
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[2]北京大学力学与工程科学系.北京科技园21#项目风洞试验研究[R].2002.
[3]范重.现代大跨度结构设计中的关键技术//中国建筑设计研究院成立50周年纪念丛书—论文篇.清华大学出版社,2002.
[4]林颍儒,徐晓明,黄本才等.上海虹口足球场大悬挑钢屋盖结构自振特性和风振动力特性响应分析[J].空间结构,2001,7(3).
[5]何艳丽,董石麟,龚景海.大跨空间网格结构风振系数探讨[J].空间结构,2001,7(2).
[6]崔玲,徐国彬,高日等.3500吨及超重承载能力球形抗震钢支座的研制[C].//第六届空间结构学术会议论文集.地震出版社,1992.
[7]崔玲,徐国彬.万向承载、万向转动、抗震、减振球形钢支座[C].//第九届空间结构学术会议论文集,浙江,2000.
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