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 (中國(guó)航空規(guī)劃建設(shè)發(fā)展有限公司，北京 100120)

［摘要］現(xiàn)行國(guó)家規(guī)范對(duì)鋼桁架轉(zhuǎn)換結(jié)構(gòu)的設(shè)計(jì)規(guī)定甚少，缺乏明確的設(shè)計(jì)指導(dǎo)原則。鋼桁架作為轉(zhuǎn)換構(gòu)件，需承托樓板、連接次梁等，造成其受力特點(diǎn)與常規(guī)桁架相比有所不同。以某科研辦公樓轉(zhuǎn)換桁架選型設(shè)計(jì)為算例，分析其樓板參與受力等性能，包括腹桿約束情況影響、樓板對(duì)桁架桿件約束情況影響等，并探討相應(yīng)的構(gòu)造措施。

［關(guān)鍵詞］轉(zhuǎn)換層；鋼轉(zhuǎn)換桁架；共同工作；約束條件；地震作用

Steel transfer truss analysis and research of a scientific and office building

Zhang Qingliang, Wang Jun, Jia Jie, Cui Guiqin

(China Aviation Planning and Construction Development Co., Ltd., Beijing 100120, China)

Abstract:Now national norm has little content refer to steel transfer truss. Steel truss has its own feature about bearing floor, connecting to junior beam, etc，which make it different from normal truss. As example, a steel transfer truss of a scientific and office building was taken to analyze its load-carrying capability and research corresponding construction.

Keywords:transfer floor; steel transfer truss; common work; restriction condition; seismic effect

作者簡(jiǎn)介：張慶亮，高級(jí)工程師，Email:qingliang1218@163.com。