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（上海材料研究所， 上海 200437）

［摘要］當(dāng)輕量化鋼結(jié)構(gòu)樓板跨度較大時(shí)，因其豎向自振頻率往往易接近人行走或者跑動(dòng)的頻率，可能存在與行人發(fā)生共振的危險(xiǎn)。共振可能會(huì)對(duì)行人舒適度、結(jié)構(gòu)的疲勞壽命造成影響。通過(guò)某帶有懸臂梁的多層鋼連廊工程實(shí)例，采用有限元軟件SAP2000進(jìn)行振動(dòng)控制計(jì)算，詳細(xì)分析了在人行荷載激勵(lì)下，當(dāng)TMD（調(diào)諧質(zhì)量阻尼器）在不同樓層分布的情況下，結(jié)構(gòu)的加速度響應(yīng)情況，并提出了設(shè)計(jì)建議。

［關(guān)鍵詞］多層鋼連廊； 調(diào)諧質(zhì)量阻尼器； 減振控制； 舒適度

中圖分類號(hào)：TU318-1文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2018)11-0094-03

Vertical TMD vibration control of a multi-story steel structure corridor with cantilever beam

Zhu Weifeng, Tu Tiangang, Chen Tianqi

(Shanghai Research Institute of Materials, Shanghai 200437, China)

Abstract:When the span of lightweight steel structure is large, the vertical vibration frequency of lightweight steel long-span slab is probably close to the normal pedestrian′s frequency of walking or running, so the resonance is easy to happen. The resonance is likely to make pedestrians feel uncomfortable and affect the fatigue life of structure. A multi-story steel corridor project with a cantilever beam was taken as an example,  SAP2000 was used to calculate the vibration control. The acceleration response was analyzed when the TMD (tuned mass damper) was distributed on different floors under the pedestrian load excitation. According to the results, a design proposal was put forward.

Keywords:multi-layer steel corridor; tuned mass damper; vibration control; comfort level

作者簡(jiǎn)介：朱唯豐，本科，工程師，Email: zwf624@163.com。