| 高耸塔结构动力特性的监测与分析 |
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| 引用本文： | 张晓志,于双久.高耸塔结构动力特性的监测与分析[J].地震工程与工程振动,1999,19(3):7-15. |
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| 作者姓名： | 张晓志 于双久 |
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| 作者单位： | 中国地震局工程力学研究所黑龙江哈尔滨 150080 |
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| 摘 要： | 使用适合于高柔结构的测试系统和测试技术，监测了塔，陕西塔和天津塔在环境振动激励下不同高程的加速度反应，使用在ＭＡＴＬＡＢ语言环境下编制的数据处理，分析，模态识别程序在微机上对各测点输出信号进行了处理，分析，识别得出３座塔结构平动前１０阶模态频率和前３阶模态阻尼比。
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| 关 键 词： | 高耸塔结构 脉动测试 动力特性 抗震设计 |
| 文章编号： | 1000-1301(1999)03-0007-09 |
Measuring of environment vibration and analysis of dynamic characteristics for tall tower structures |
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| ZHANG Xiao zhi,YU Shuang jiu.Measuring of environment vibration and analysis of dynamic characteristics for tall tower structures[J].Earthquake Engineering and Engineering Vibration,1999,19(3):7-15. |
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| Authors: | ZHANG Xiao zhi YU Shuang jiu |
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| Abstract: | The acceleration responses of Central, Shanxi and Tianjin television and broadcasting towers in environment vibration are measured The output signals are processed and analyzed in personal computer by using the programs in MATLAB language The first ten shear mode frequencies and the first three damping ratios of all three towers, the first seven shear vibration modes of Central and Shanxi towers, the first five shear vibration modes of Tianjin tower, and the first two torsional mode frequencies and damping ratios of all three towers are gotten by using the method of identification The methods and programs used in the paper are successful and reliable The results with important meaning for aseismic design and disaster reduction of television tower have fine precision and can meet the engineering needs |
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| Keywords: | tall tower structure environment vibration measure and analysis mode identification |
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