- 摘 要
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（湖南大學土木工程學院，長沙 410082）
［摘要］為了完善結構基本自振周期的估算公式和簡化高層及超高層建筑的高階自振周期值的求解過程，收集了近年來我國高層及超高層建筑自振周期理論計算數(shù)據(jù)、振動臺試驗數(shù)據(jù)和風脈動結構振動實測數(shù)據(jù)。通過對計算數(shù)據(jù)和各種試驗數(shù)據(jù)進行擬合、對比，得到了基本周期估算的推薦公式。同時，基于上述數(shù)據(jù)，討論了建筑高度、地震作用、結構類型對第二階、第三階自振周期與基本振型周期比值的影響，得到了第二階、第三階自振周期與基本周期比值的統(tǒng)計結果。
［關鍵詞］高層及超高層建筑； 基本自振周期； 高階自振周期； 估算公式
中圖分類號：TU973文獻標識碼：A文章編號：1002-848X(2018)03-0085-05
Statistical analysis of natural vibration period of high-rise and super high-rise concrete and steel-reinforced concrete mixed structures in China
Wang Zhihui, Yi Weijian, Wang Mengfu
(College of Civil Engineering, Hunan University, Changsha 410082, China)
Abstract:In order to improve the estimation formula for the fundamental natural vibration period and simplify the solving process of high-order natural vibration period of high-rise and super high-rise structures, the theoretical calculation data of the natural vibration period of high-rise and super high-rise buildings, shaking table test data and the measured vibration data of wind pulsating structure in China in recent years were collected. By fitting and comparing the calculated data and various experimental data, the recommended formula for the fundamental natural vibration period was obtained. Meanwhile, based on the above data, the influences of building height, earthquake action and structure type on the ratios of second-order and third-order natural vibration periods to fundamental natural vibration period were discussed, and the statistical results were obtained for the ratios of second-order and third-order natural vibration periods to fundamental natural vibration period.
Keywords:high-rise and super high-rise building; fundamental natural vibration period; high-order natural vibration period; estimation formula
*國家自然科學基金資助項目(51338004，50978091,51278181)。
作者簡介：汪幟輝,碩士研究生，Email:519710548@qq.com。
