- 摘 要
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（1 南京林業(yè)大學材料科學與工程學院， 南京 210037； 2 南京信息工程大學計算機與軟件學院， 南京 210044； 3 江蘇森之虎建筑工程有限公司， 南京 210016；4 江蘇耀源木業(yè)有限公司， 宿遷 223700）
［摘要］為了滿足人們對木結構建筑舒適度的客觀要求，采用環(huán)境激勵法和沖擊激勵法，對一棟設置6個測點的二層輕型木結構居民樓的樓蓋結構，開展了環(huán)境激勵下樓蓋結構的基頻測試，沖擊激勵下的球類激勵和人行激勵動態(tài)振動測試，并對以上測試所得的基頻、加速度峰值、速度峰值和有效值等結果進行了舒適度分析。研究表明，本樓蓋結構在環(huán)境激勵和沖擊激勵方式下實測基頻均高于4.5Hz，可滿足舒適度要求；沖擊激勵方式下實測加速度峰值最大值為407.2mm/s2，人體處于明顯感覺到與感覺不舒服之間；速度峰值最大值為5.606m/s，滿足舒適度標準要求；加速度有效值的最大值小于0.45m/s2，滿足建筑舒適度要求。綜合評價本樓蓋結構滿足舒適度要求。
［關鍵詞］木結構樓蓋； 環(huán)境激勵； 沖擊激勵； 振動測試； 舒適度分析
中圖分類號：TU398-7文獻標識碼：A文章編號：1002-848X(2020)16-0100-07
Vibration test and comfort analysis of wooden building floor structure under environmental and impact excitations
DING Yewei1, FU Haiyan1, WANG Zheng1, WANG Yunlu2, XIE Wenbo1, ZHAO Tianchang3， SI Shiguang4
(1 College of Science and Engineering, Nanjing Forestry University, Nanjing 210037, China; 2 College of Computer and Software, Nanjing University of Information Science & Technology, Nanjing 210044,China; 3 Jiangsu Tiger Woods Construction Engineering Co., Ltd., Nanjing 210016, China； 4 Jiangsu Yaoyuan Wood Industry Co., Ltd.， Suqian 223700, China)
Abstract: In order to meet people′s objective requirements for the comfort of wooden structures, for the floor structure of a two-story light-wood residential building with six measurement points, the environmental excitation method and the impact excitation method were used to carry out the dynamic vibration test of the floor structure under environmental excitations of the fundamental frequency and impacts including ball excitations and pedestrian excitations. Frequency, acceleration peak, speed peak and effective value test results were analyzed for comfort. The research shows that the measured fundamental frequency of the building structure under environmental excitation and impact excitation is higher than 4.5Hz, which can meet the comfort requirements; the maximum value of the measured acceleration peak value under the impact excitation mode is 407.2mm/s2, and the human body is between the feelings of uncomfortable and obviously uncomfortable; the maximum value of speed peak value is 5.606m/s, which meets the comfort standard requirements; the maximum value of the acceleration effective value is less than 0.45m/s2, which meets the requirements of building comfort. The result of the comprehensive evaluation is that the floor structure meets the comfort requirements.
Keywords:wooden structure floor; environmental excitation; impact excitation; vibration test; comfort analysis
* 2018年江蘇省政策引導類計劃（蘇北科技專項）（SZ-SQ2018014）。
作者簡介：丁葉蔚，碩士研究生，Email：871514415@qq.com。
