人致荷載作用下樓層網(wǎng)架結(jié)構(gòu)舒適度研究*
韓慶華1,2，趙一峰1，蘆燕1,2，盧鵬1
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(1 天津大學(xué)建筑工程學(xué)院，天津 300072； 2 天津大學(xué)濱海土木工程結(jié)構(gòu)與安全教育部重點(diǎn)實(shí)驗(yàn)室，天津 300072)
［摘要］以鋼網(wǎng)架和組合網(wǎng)架為例，基于擬夾層板法理論分析和數(shù)值模擬相結(jié)合的方法，提出了人致荷載作用下樓層網(wǎng)架結(jié)構(gòu)的動(dòng)力響應(yīng)計(jì)算方法，分析了步行、跳躍荷載作用下樓層網(wǎng)架結(jié)構(gòu)的加速度響應(yīng)，得到了樓層網(wǎng)架結(jié)構(gòu)基頻在2.5～8Hz范圍內(nèi)時(shí)的最大加速度響應(yīng)變化規(guī)律，并給出了其滿(mǎn)足舒適度要求的頻率限值。［關(guān)鍵詞］網(wǎng)架結(jié)構(gòu); 舒適度; 擬夾層板法; 人致荷載中圖分類(lèi)號(hào)：TU393.3 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2015)16-0035-05
Comfort study of floor space truss structure under human-induced loadsHan Qinghua1,2, Zhao Yifeng1, Lu Yan1,2, Lu Peng1(1 School of Civil Engineering, Tianjin University, Tianjin 300072, China; 2 Key Laboratory of Coast Civil Structure Safety, Ministry of Education, Tianjin University, Tianjin 300072, China)Abstract: Taking steel space truss and composite space truss as examples, the dynamic response calculation method of floor space truss structure under human-induced loads was proposed based on the equivalent sandwich plate method theoretical analysis and numerical simulation method. The acceleration response of the structure was analyzed under human walking and jumping loads. The changing law of the maximum acceleration response of the structure was obtained when the natural frequency of the structure ranges from 2.5Hz to 8.0Hz, and limit frequency was proposed to fulfill the comfort requirement.Keywords: space truss structure; comfort; equivalent sandwich plate method; human-induced load
*教育部博士點(diǎn)基金(20130032110044)，國(guó)家自然科學(xué)基金(51308386)。通訊作者：蘆燕，講師，Email: yanlu86@tju.edu.cn。
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