| 四跨弹性支座连续梁振动简便计算方法 |
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| 引用本文： | 夏艺楠,张荣山.四跨弹性支座连续梁振动简便计算方法[J].工业建筑,2014(Z1):277-284,320. |
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| 作者姓名： | 夏艺楠 张荣山 |
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| 作者单位： | 连云港沃利帕森工程技术有限公司天津分公司;中国天辰工程有限公司 |
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| 摘 要： | 介绍了四跨等跨弹性支座连续梁振动简便计算方法,把梁上作用的集中质量和均布质量简化为一个统一的均布质量,将梁在统一的均布质量作用下的变形曲线视为振型,建立计算前两个振型的自振频率公式。按照该方法的思路,还可以推广建立五跨等多跨弹性支座连续梁振动计算公式。通过实际工程的应用,证明能满足控制工程振动的需要。
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| 关 键 词： | 振型确定 自振频率 工程应用 |
SIMPLE CALCULATION OF VIBRATION OF FOUR-EQUAL-SPAN CONTINUOUS BEAM WITH FLEXIBLE SUPPORTING |
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| Xia Yinan;Zhang Rongshan.SIMPLE CALCULATION OF VIBRATION OF FOUR-EQUAL-SPAN CONTINUOUS BEAM WITH FLEXIBLE SUPPORTING[J].Industrial Construction,2014(Z1):277-284,320. |
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| Authors: | Xia Yinan;Zhang Rongshan |
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| Affiliation: | Xia Yinan;Zhang Rongshan;Tianjin Branch of Lianyungang Worley Parsons Engineering Technology Co. Ltd;China Tianchen Engineering Co. Ltd; |
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| Abstract: | It is introduced how to calculate the vibration of a four-equal-span continuous beam with flexible supporting,in which numerous central and uniform mass on beam is simplified as a distributed unified mass,and the beam deformation curve under the action of the distributed mass is treated as beam mode of vibration. Based on this,a formula of the first two free vibration frequency is deduced. In accordance with the idea of this method,A formula of five-equalspan or more spans continuous beam with flexible supporting can also be got. Through practice of a number of engineering projects,it has been proved that this method can be used to control the vibration of projects perfectly. |
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| Keywords: | determination of vibration mode free vibration frequency project use example |
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