[1]李加武,卢斌,刘健新..影响桥梁减震性能参数的试验研究[J].郑州大学学报(工学版),2002,23(02):34-36.[doi:10.3969/j.issn.1671-6833.2002.02.010]
　Li Jiawu,Lu Bin,Liu Jianxin.Experimental study on the performance parameters of bridge shock absorption[J].Journal of Zhengzhou University (Engineering Science),2002,23(02):34-36.[doi:10.3969/j.issn.1671-6833.2002.02.010]
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影响桥梁减震性能参数的试验研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
23
期数:
2002年02期
页码:
34-36
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Experimental study on the performance parameters of bridge shock absorption
作者:
李加武; 卢斌; 刘健新.
同济大学土木工程防灾国家重点实验室,上海,200092, 长安大学桥梁工程系,陕西,西安,710064
Author(s):
Li Jiawu; Lu Bin; Liu Jianxin
关键词:
模型;  阻尼;  相位;  墩高;  支座剪切刚度;  地震波
Keywords:
DOI:
10.3969/j.issn.1671-6833.2002.02.010
文献标志码:
A
摘要:
阻尼、墩高、支座的剪切刚度对桥梁的动力行为有着重要的影响,研究它们在减震中的作用对抗震设计很有指导价值.通过连续桥梁模型振动台试验,分析了阻尼、墩高、支撑剪切刚度对模型梁和墩减震性能的影响:墩越高,对自身的抗震越有利,对上部结构不利;剪切刚度越大,对上部结构不利,对下部结构也不利,阻尼不是越大越好.试验表明,适当地调节阻尼、刚度、墩高会降低振动幅值,扰乱振动过程中规则的相位,从而得到良好的减震效果.
Abstract:
The damping, pier height and shear stiffness of the support have important influences on the dynamic behavior of the bridge, and it is of great guiding value to study their role in shock absorption and seismic design. Through the continuous bridge model shaker test, the effects of damping, pier height and supporting shear stiffness on the shock absorption performance of the model beam and pier were analyzed: the higher the pier, the more favorable it is to its own seismic resistance and unfavorable to the superstructure. The greater the shear stiffness, it is not good for the superstructure, it is also not good for the substructure, and the greater the damping, the better. The test shows that proper adjustment of damping, stiffness and pier height will reduce the vibration amplitude and disturb the regular phase during the vibration process, so as to obtain a good shock absorption effect.

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更新日期/Last Update: 1900-01-01