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| 结构的鞭梢效应分析 | |
| 引用本文： | 曲淑英,王心健,曲乃泗,王建新. 结构的鞭梢效应分析[J]. 烟台大学学报(自然科学与工程版), 2001, 14(1): 55-59 |
| 作者姓名： | 曲淑英 王心健 曲乃泗 王建新 |
| 作者单位： | 1. 烟台大学 土木工程系, 山东 烟台 264005 2. 大连理工大学 力学系, 辽宁 大连 116023 3. 山东省轻工业学校， 山东 烟台 264001 |
| 基金项目： | 山东省自然科学基金资助项目(Q99F05). |
| 摘 要： | 系统地探讨了结构产生鞭梢效应的原因，发现当突出物的基本频率与整体结构的固有频率相同或近似，并与地面扰频相接近时，最易发生鞭梢效应，通过适当调整结构的刚度或质量分布使突出物的频率与整体结构的频率的差值增大，可减少鞭梢效应的影响，从而为结构设计提供更可靠的依据。 |
| 关 键 词： | 鞭梢效应 固有频率 整体结构 主体结构 |
| 文章编号： | 1004-8820(2001)01-0055-05 |
Analysis of WhiplashEffect of Structures |
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| QU Shu-ying,WANG Xin-jian,QU Nai-si,WANG Jian-xin. Analysis of WhiplashEffect of Structures[J]. Journal of Yantai University(Natural Science and Engineering edirion), 2001, 14(1): 55-59 | |
| Authors: | QU Shu-ying WANG Xin-jian QU Nai-si WANG Jian-xin |
| Affiliation: | QU Shu_ying 1,WANG Xin_jian 1,QU Nai_si 2,WANG Jian_xin 3 |
| Abstract: | It is explained why the whiplash effect occurs to building having prominent part on its top by analysis of building of multiple degrees of freedom on earthquake effect. It is shown that whiplash effect can occur when the fundamental frequency of prominent part equals to the natural frequency of the monolithic structure containing main part and prominent part, or this frequency nearly equals to the earthquake frequency. This is proved to be right by example. Decreasing the influence of whiplash effect, people shouldn't only increase the stiffness of prominent parts while adjusting structure's stiffness and mass distribution by dynamic computation in order to make frequency difference of prominent part and the monolithic structure bigger. Thus, more reliable data could be supplied for design of structures. |
| Keywords: | whiplash effect natural frequency monolithic structure principle structure |
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