| 多肢剪力墙自振频率传递矩阵法简化计算 |
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| 引用本文： | 李桅,李青宁.多肢剪力墙自振频率传递矩阵法简化计算[J].地震工程与工程振动,2010,30(2). |
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| 作者姓名： | 李桅 李青宁 |
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| 作者单位： | 西安建筑科技大学,土木工程学院,陕西,西安710055 |
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| 摘 要： | 基于连续体系模型与传递矩阵法的结合,提出了一种简化方法来计算多肢剪力墙的动力特性。整个结构体系等效模拟为一个夹层结构梁;建立了相应的基本微分方程;通过求解微分方程得到了楼层间变形函数;利用边界条件及层间变形函数导出了层间传递矩阵;据此计算出了体系的振型与自振频率。算例分析表明本文方法计算结果与文献给出的解是比较吻合的。
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| 关 键 词： | 多肢剪力墙 连续体系模型 动力分析 自振频率 传递矩阵法 |
An approximate calculation of transfer matrix method for natural frequencies of vibration of multi-shear wall |
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| LI Wei,LI Qingning.An approximate calculation of transfer matrix method for natural frequencies of vibration of multi-shear wall[J].Earthquake Engineering and Engineering Vibration,2010,30(2). |
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| Authors: | LI Wei LI Qingning |
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| Abstract: | An approximate calculation method based on the continuum approach and transfer matrix method for dy-namic analyses of coupled shear wall structures is presented. The whole structure is idealized as a sandwich beam in this method. Initially the differential equation of this equivalent sandwich beam is developed, and then shape func-tions for each storey can be obtained by the solution to differential equations. By using boundary conditions and sto-rey transfer matrices, which are obtained by these shape functions, system modes and natural frequencies of vibra-tion can be calculated. Reliability of the study is shown with a few examples. The results of the examples display the agreement between the present method and the other methods given in the references. |
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| Keywords: | multi-shear wall continuum model dynamic analyses natural frequencies of vibration transfer matrix method |
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