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(華南理工大學(xué)建筑設(shè)計(jì)研究院有限公司, 廣州 510641)

［摘要］某科研大樓為超限高層建筑，建筑結(jié)構(gòu)平面呈U字形，頂部?jī)蓪油ㄟ^(guò)跨度約30m的鋼桁架結(jié)構(gòu)連接成封閉的口字形，為局部連體結(jié)構(gòu)。介紹了該結(jié)構(gòu)整體的抗震設(shè)計(jì)性能化分析歷程，重點(diǎn)闡述了連體鋼桁架的結(jié)構(gòu)性能化分析要點(diǎn)和方法，從力學(xué)基本概念和工程應(yīng)用實(shí)踐出發(fā)，提出了將連體鋼桁架視為一個(gè)整體構(gòu)件進(jìn)行性能化設(shè)計(jì)的方法，取得了良好的效果。

［關(guān)鍵詞］超限高層建筑； 連體鋼桁架； 性能化設(shè)計(jì)

中圖分類(lèi)號(hào)：TU352-1文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2019)20-0046-05

Performancebased seismic design of an out-of-code building and connected steel truss

Zhou Weixing, Sun Wenbo, Guo Chengzhi

(Architectural Design & Research Institute of SCUT Co., Ltd., Guangzhou 510641, China)

Abstract:A scientific research building is an out-of-code tall building. The plane of the structure is U-shaped. The top two floors are connected into a closed square shape through a steel truss corridor spanning about 30m. The building is a locally connected structure. The process of performance-based seismic analysis of the whole structure was introduced. The main points and methods of performance-based seismic analysis for the structure of the connected steel truss were expounded. Based on the basic mechanical concept and engineering application practice, the method of performance-based seismic design of the connected steel truss as an integral component was put forward and  good results were obtained.

Keywords:out-of-code tall building; connected steel truss; performance-based design

作者簡(jiǎn)介：周偉星，碩士，工程師，Email：625327060@qq.com。