- 摘 要
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（1 中衡設(shè)計(jì)集團(tuán)股份有限公司， 蘇州 215021；2 江蘇省生態(tài)建筑與復(fù)雜結(jié)構(gòu)工程技術(shù)研究中心， 蘇州 215021）
［摘要］舒適度驗(yàn)算通常采用的經(jīng)驗(yàn)公式法和時(shí)域分析法，在特定情況下存在不足。梳理了大跨度樓蓋舒適度計(jì)算的基本理論，介紹了頻域分析法，同時(shí)對比了時(shí)域分析法和頻域分析法的優(yōu)缺點(diǎn)，如時(shí)域分析法適用性廣但可能無法獲得最不利動力響應(yīng)；而頻域分析法可以一次性獲得各人行激勵荷載頻率下的動力響應(yīng)，但僅適用于固定位置的激勵荷載。最后結(jié)合某工程大跨度鋼結(jié)構(gòu)連廊，針對其鋼與混凝土組合樓蓋在人行激勵荷載下可能發(fā)生的舒適度不足問題，分別采用時(shí)域分析法和頻域分析法，對樓蓋豎向加速度響應(yīng)進(jìn)行了分析驗(yàn)算，并介紹了應(yīng)用要點(diǎn)，可供類似工程分析參考。
［關(guān)鍵詞］大跨度連廊； 舒適度； 時(shí)域分析法； 頻域分析法
中圖分類號：TU375文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2019)01-0043-06
Comparison and application of time-domain analysis method and frequency-domain analysis method for comfortability analysis
Zhang Jin1,2, Yang Lülei 1,2, Zheng Zhigang1,2, Gong Minfeng1,2
(1 ARTS Group Co., Ltd., Suzhou 215021, China； 2 Jiangsu Engineering Institute of Ecological Building & Complex Structure, Suzhou 215021, China)
Abstract:The empirical formula method and the time-domain analysis method, which are usually used for comfortability check, have shortcomings under certain circumstances. The basic theory of comfortability calculation of large-span floor was summarized, and the frequency-domain analysis method was introduced. At the same time, the advantages and disadvantages of the time-domain analysis method and the frequency-domain analysis method were compared. For example, the time-domain analysis method is widely applicable but may not obtain the most unfavorable dynamic response; while the frequency-domain analysis method can obtain the dynamic response of each pedestrian excitation frequency at one time, but only for the excitation load at fixed position. Finally, aiming at the problem of insufficient comfortability of the steel and concrete composite floor under the pedestrian excitation load, the time-domain analysis method and the frequency-domain analysis method were used to analyze and check the vertical acceleration response of the floor, and the application points were introduced for reference for similar engineering analysis.
Keywords:large-span corridor; comfortability; time-domain analysis method; frequency-domain analysis method
作者簡介：張謹(jǐn)，研究員級高級工程師，一級注冊結(jié)構(gòu)工程師，英國注冊結(jié)構(gòu)工程師，Email: zhangjin@artsgroup.cn。
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