[1]林春阳,戴君武,翁旭然.超大冷却塔欠质量模型振动台试验研究[J].世界地震工程,2017,33(01):110-116.
 LIN Chunyang,DAI Junwu,WENG Xuran.Study on the shaking table test of super large cooling tower insufficient-mass model[J].,2017,33(01):110-116.
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超大冷却塔欠质量模型振动台试验研究
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《世界地震工程》[ISSN:/CN:]

卷:
33
期数:
2017年01期
页码:
110-116
栏目:
出版日期:
2017-04-18

文章信息/Info

Title:
Study on the shaking table test of super large cooling tower insufficient-mass model
作者:
林春阳 戴君武 翁旭然
中国地震局工程力学研究所, 中国地震局地震工程与工程振动重点实验室, 黑龙江 哈尔滨 150080
Author(s):
LIN Chunyang DAI Junwu WENG Xuran
Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China
关键词:
超大冷却塔地震动相似率振动台缩尺模型
Keywords:
super large cool towerground motionsimilarity ratioseismic shaking tablescaled model
分类号:
TU317.1
摘要:
抗震研究中模型试验起着重要的作用。应用相似理论对超大冷却塔进行了欠质量试验模型设计,介绍了缩尺模型的特殊施工工艺,根据地震动三要素确定12条地震动用于冷却塔试验模型地震动输入,对超大冷却塔1∶30的模型在5m×;5m的震动台上进行了试验。试验测试了超大冷却塔的自振频率,利用振动台模拟7度、8度设防烈度对超大冷塔模型进行了动力试验。应用数值模拟分析了冷却塔试验模型的地震效应,对比了试验测试结果与数值模拟分析结果,数值模拟分析结果与试验结果吻合较好。试验结果与分析结果表明,冷却塔有较宽的频率带宽。时程分析解与试验结果对比表明,采取梁柱模型分析超大冷却塔能很好地模拟冷却塔的动力特性。
Abstract:
Shaking table tests play an important roles in seismic researches. In this paper the insufficient-mass models was designed for the super large cooling tower shaking table test by method of similarity theory. Then the paper introduces the scaled model’s production process and technology. According to three elements of ground motion, 12 well selected records was used to measure earthquake responses of the super large cooling tower model. 1:30 scaled model was tested on the 5m×5m seismic shaking test table. Natural vibration frequencies were computed by data from the model. By seismic shaking table stimulating ground motion 7 and 8 fortification intensity the earthquake responses were measured for soil site class from I to IV. Numerical finite element method was adopted to analyze the seismic responses of the super large cooling tower model. The measured results of model coincide with the analysis results from numerical simulation very well. Results identify that the super large cool tower has wider range of natural frequency.Comparison between time history analysis results and measured results shows that beam and shell model can stimulate the super large cool tower dynamical responses properly.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2016-01-16;改回日期:2016-04-20。
基金项目:国家国际科技合作专项基金资助项目(2012DFA70810)
作者简介:林春阳(1972-)男,博士研究生,从事结构工程研究.E-mail:linchunyang1972@126.com
通讯作者:戴君武(1967-),研究员,主要从事结构隔震/减振技术研究,地震模拟振动台与拟动力实验研究.E-mail:junwudai@126.com
更新日期/Last Update: 1900-01-01