884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

陽(yáng)  升¹，錢基宏¹，趙鵬飛¹，湯榮偉¹，潘國(guó)華²，陶  勇²，鮑華²，郭盛²，石城林²
（1 中國(guó)建筑科學(xué)研究院，北京100013； 2 中鐵第四勘察設(shè)計(jì)院集團(tuán)有限公司，武漢430063）

[摘要]  武漢火車站樓面結(jié)構(gòu)具有平面尺寸大、跨度大、支撐構(gòu)件復(fù)雜、樓面形狀不規(guī)則、荷載大、梁高受限制等特點(diǎn)。這些特點(diǎn)導(dǎo)致樓面結(jié)構(gòu)豎向自振頻率較低，在人的行走和跳躍激勵(lì)下有可能產(chǎn)生較大的動(dòng)力響應(yīng)，從而引起樓面人員的不舒適。對(duì)歷史上樓面振動(dòng)舒適度的評(píng)價(jià)標(biāo)準(zhǔn)進(jìn)行了歸納總結(jié)，并提出適合樓面結(jié)構(gòu)的舒適度評(píng)價(jià)標(biāo)準(zhǔn)：對(duì)武漢火車站大跨度樓面結(jié)構(gòu)在行走和跳躍激勵(lì)下引起結(jié)構(gòu)的振動(dòng)加速度進(jìn)行了計(jì)算，并進(jìn)行了相應(yīng)的舒適度評(píng)價(jià)，結(jié)果表明，在人的行走和跳躍下不會(huì)引起樓面人員的不舒適。
[關(guān)鍵詞]  大跨度樓面結(jié)構(gòu)；振動(dòng)舒適度；峰值加速度；舒適度評(píng)價(jià)

    Study on vibration comfort of long-span floor structure of Wuban railway station under valk and jump excitation
    Yang Sheng¹, Qian Jihong¹, Zhao Pengfei¹ , Tang Rongwei¹, Pan Guohua², Tao Yong², Bao Hua², Guo Sheng², Shi Chenglin²
    (1  China Academy of Building Research, Beijing 100013, China; 2 China Railway Siyuan Survey and Design Group Co.Ltd. ,Wuhan 430063 ,China)

Abstract:  The floor structure of Wuhan railway station has the characteristics of big area, long span, complex support component, irregular shape of floor, heavy loads and restriction of beam height, which made the vertical frequency of floor lower and dynamic response heavier under walking and jumping which made people on floor uncomfortable.Ihis paper has studied the domestic and foreign floor vibration comfort criterion, and then the evaluation index of vibration confort of long span floor systems has been proposed. The peak acceleration of long span floor structure of Wuhan railway station under walking and jumping where is low frequency is calculated and the floor comfort has been evaluated. It is proved that the floor of Wuhan railway station under walking and jumping does not make people uncomfortable.
Keywords:  long span floor structure; vibration comfort; peak acceleration; evaluation of comfort