华南理工大学国际校区E3图书馆结构设计  

Structural design of E3 Library of International Campus of South China University of Technology

作　　者：赵颖 江毅 易伟文 刘光爽 杨子越 吴憾 ZHAO Ying;JIANG Yi;YI Weiwen;LIU Guangshuang;YANG Ziyue;WU Han(Architectural Design Research Institute of SCUT,Guangzhou 510641,China;School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,China)

机构地区：[1]华南理工大学建筑设计研究院有限公司,广州510641 [2]华南理工大学土木与交通学院,广州510640

出　　处：《建筑结构》2022年第17期121-126,98,共7页Building Structure

基　　金：企业横向科研基金项目(x2jzD8220300)。

摘　　要：作为华南理工大学广州国际校区二期工程标志性建筑,E3图书馆整体呈倒梯形,建筑主屋面高度27.30m,属超限结构。建筑3层及以上中庭位置开设大洞,仅通过3、4层南北两侧连廊楼板和屋顶天窗跨度为33.6m的大跨度Z字形钢梁连接。通过5个结构方案比选,选用沿幕墙边布置斜柱的框架结构。斜柱倾斜角度约为29°,与东、西、南侧外周边悬挑2.8~8.4m的内框架形成空腹桁架。斜柱在竖向荷载下产生水平分量,通过楼板应力分析对楼板进行加强。按照设定的性能目标,对结构进行弹性计算、中震验算并采用Perform-3D软件进行了罕遇地震作用下的弹塑性动力时程分析,根据分析结果,采取了有针对性的加强措施。As the landmark building of phase II project of Guangzhou International Campus of South China University of Technology, the overall shape of the E3 Library is an inverted trapezoid and the building height of the main roof is 27.30 m, and it is an out-of-code structure. There are large holes in the atrium on the 3 rd floor and above of the building, which are only connected by large-span Z-shaped steel beams with a span of 33.6 m between the floor slabs on the north and south sides of the 3 rd and 4 th floors and the roof skylight. Through the comparison and selection of five structural schemes, the frame structure with inclined columns arranged along the curtain wall was selected. The inclined column is inclined at an angle of about 29°and forms a vierendeel truss with the inner frame of 2.8~8.4 m overhanging at the outer periphery of the east, west and south sides. The inclined column produces horizontal components under vertical load, and the floor was strengthened by the floor stress analysis. According to the predefined performance objectives, elastic design and checking design under fortification earthquakes were conducted and elastic-plastic dynamic time-history analysis was conducted under rare earthquakes using Perform-3 D software. According to these analysis results, pertinent strengthening measures were adopted.

关 键 词：超限结构 中庭开洞 大跨度Z字形钢梁 结构方案比选 斜柱 空腹桁架 

分 类 号：TU973[建筑科学—结构工程] TU318