| 合肥电视塔人造脉动风荷载的仿真计算 |
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| 引用本文： | 张志强,李爱群,蔡丹绎,何建平,王建磊. 合肥电视塔人造脉动风荷载的仿真计算[J]. 东南大学学报(自然科学版), 2001, 31(1): 69-73 |
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| 作者姓名： | 张志强 李爱群 蔡丹绎 何建平 王建磊 |
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| 作者单位： | 东南大学土木工程学院,南京 210096;国家广电总局设计院塔桅所,北京 110001 |
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| 基金项目： | 国家自然科学基金!(5 99780 0 9),教育部跨世纪人才基金资助项目 |
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| 摘 要： | 根据随机振动理论,分别按照星谷胜和M.Shinozuka方法对合肥电视塔顺风向脉动风荷载进行了模拟,并对其进行了检验,得出了符合合肥电视塔动力特性的人造脉动风压时程样本。并利用所得到的脉动风压样本对电视塔进行了顺风向响应分析,分析表明,该塔在脉动风荷载作用下,上塔楼的最大风振加速度响应超过了人体舒适度的要求,有必要进行风振控制。
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| 关 键 词： | 脉动风 自功率谱 互功率谱 时程样本 |
| 文章编号： | 1001-0505(2001)01-0069-05 |
Simulation of Dynamic Wind Load on the Hefei Television Tower |
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| Zhang Zhiqiang Li Aiqun Cai Danyi He Jianping Wang Jianlei. Simulation of Dynamic Wind Load on the Hefei Television Tower[J]. Journal of Southeast University(Natural Science Edition), 2001, 31(1): 69-73 |
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| Authors: | Zhang Zhiqiang Li Aiqun Cai Danyi He Jianping Wang Jianlei |
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| Affiliation: | Zhang Zhiqiang 1 Li Aiqun 1 Cai Danyi 1 He Jianping 2 Wang Jianlei 2 |
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| Abstract: | According to the random vibration theory, the dynamic alongwind load on the Hefei Television Tower is simulated by two different methods, respectively. These samples are proved, and the time histories of dynamic alongwind load, that correspond to dynamic characteristics of the tower are set up. With these samples, the alongwind induced responses of the tower are calculated. Analysis shows that the maximum acceleration response at upper turret with the effect of dynamic wind load is far beyond the value of human comfort limit, and the control of wind induced vibration is necessary. |
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| Keywords: | dynamic wind load auto spectrum inter spectrum time histories sample |
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