“单跨围合式框架结构”的设计与思考

Design and thinking of "single-span-enclosed-frame structure"

工程设计中部分建筑因其特殊的功能和造型要求,在结构上会形成一种特殊的类“单跨围合式框架结构”形式。因该结构形式由不利于抗震的单跨框架围合而成,且个别单跨框架的调整对结构整体造成的影响一般会大于常规框架结构,故该类结构应当采用更针对性的分析方法。中国人民大学通州新校区未来传播创新中心因建筑需求,采用了这种类“单跨围合式框架结构”,本文通过理论分析与模拟计算的方式,研究了中国人民大学通州新校区未来传播创新中心的设计要点,提出了该项目中大跨、大开洞、弱连接、斜柱、穿层柱等设计难点的分析方法,并介绍了舞台演播厅中灯栅层的设计方法。本文以此项目为依据,总结了因建筑大空间使用功能要求而形成的类“单跨围合式框架结构”的重点问题,旨在为其他类“单跨围合式框架结构”的设计提供一定的借鉴。

Due to the special function and modeling requirements,a special form of‘single-span-enclosing-like-frame structure’will be formed in some engineering design projects.Because this structural form is enclosed by single span frames which are not conducive to earthquake resistance,and the adjustment of individual single span frame will generally have a greater impact on the overall structure than conventional frame structures,more targeted analysis methods should be adopted for this kind of structure.The“Future innovation communication center of Renmin University”has formed a kind of‘single-span-enclosing-like-frame structure’because of the construction demand,through theoretical analysis and simulation calculation,the main design innovations in“Future innovation communication center of Renmin University”project was summarized in this article.First,the difficulties of structural analysis for large-span structure,large cavity in facade,weak connection,oblique columns and thermocline columns were explained,and the design method of the light grid layer in the stage studio was introduced.Then,concluded from this project,design issues of‘single-span-enclosing-like-frame structure’which derived from large functionality space were highlighted.The aim of this research is to shed light on other‘single-span-enclosing-like-frame structure’design.