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中文摘要：
以在天津塘沽拟建的30m高张拉整体塔为背景,提出了分层组装、顶层一次张拉的制作思想,并利用这个思想制作了1∶5的缩尺模型.采用脉冲锤击法测试了模型的固有频率、阻尼比、模态质量、模态阻尼、模态刚度和模态振型等基本动力特性参数,得出张拉整体塔结构的基本动力特性.与理论分析结果比较,两者吻合良好,为今后张拉整体塔的风振效应和地震反应等动力分析提供重要的基础数据.
英文摘要：
A tensigrity tower with a height of 30m will he constructed in Tanggu District of Tianjin city. Based on the tower, a model with a scale of 1- 5 was fabricated by a new assembling method called stratified assembling and one-step pretension in top end method. Some key dynamic parameters were obtained from dynamic experiment, such as natural frequency, damping ratio, modal mass, modal stiffness, and modal shape and so on. Then FE model of this structure was developed in ANSYS, and its natural frequency and modal shape were also obtained. The FE analysis results is well consistent with that of experiment. All conclusions obtained in this paper can be an important reference for further wind- induced effect and seismic response research.
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