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(上海市建工二建集團(tuán)有限公司，上海 200090)

［摘要］  樓板豎向加速度是影響樓板舒適度的主要指標(biāo)。對(duì)樓板動(dòng)力響應(yīng)公式進(jìn)行了分析，采用傅里葉級(jí)數(shù)法對(duì)單人行走荷載作用下樓板豎向加速度響應(yīng)進(jìn)行了研究，并進(jìn)行單人行走荷載作用下正方形簡(jiǎn)支組合板動(dòng)力響應(yīng)試驗(yàn)驗(yàn)證，計(jì)算結(jié)果表明峰值加速度理論值與試驗(yàn)值誤差為28.7%。在此基礎(chǔ)上分析步頻、樓板長(zhǎng)寬比對(duì)樓板峰值加速度的影響。分析結(jié)果表明：樓板長(zhǎng)寬比從1.0增大到8.0時(shí)，峰值加速度降低73%；在同樣的人行荷載作用下且樓板短邊尺寸固定的條件下，雙向板加速度響應(yīng)遠(yuǎn)大于單向板。 

［關(guān)鍵詞］人行荷載； 單人行走； 豎向加速度； 步頻； 樓板長(zhǎng)寬比 

中圖分類號(hào)：TU398-7 文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2021)12-0087-04

Research on vertical acceleration response of floor slab under pedestrian load 

WANG  Yongsheng 

(Shanghai Construction NO.2 (Group) Co., Ltd.，Shanghai 200090， China) 

Abstract: The vertical acceleration of floor slab is the main index affecting the comfort of floor slab. The dynamic response formula of floor slab was analyzed, Fourier series method was adopted to study vertical acceleration response of floor slab under single-person walking load, a square simply supported composite slab test was used to verify the correctness of the theory. The calculation results show that the error between the theoretical value and the experimental value of peak acceleration is 28.7%. On this basis, the influence of step frequency and length-width ratio of slab on the peak acceleration of floor slab was analyzed. The analysis results show that when the length-width ratio of slab increases from 1.0 to 8.0, the peak acceleration decreases by 73%; under the same pedestrian load and the condition of fixed length of short side of slab, the peak acceleration response of the two-way plate is much larger than that of the one-way plate. 

Keywords:pedestrian load； single-person walking； vertical acceleration； pedestrian load frequency； length-width ratio of floor slab

作者簡(jiǎn)介：王永生，碩士，工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email:ww200520052005@163.com。