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剪切型转动粘弹性阻尼器在村镇木结构抗风中的应用

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Indexed by:期刊论文

Date of Publication:2016-11-15

Journal:建筑科学与工程学报

Included Journals:PKU、ISTIC

Volume:33

Issue:6

Page Number:24-29

ISSN No.:1673-2049

Key Words:抗风设计;粘弹性阻尼器;振动控制;村镇木结构

Abstract:针对强台风下村镇低矮房屋的大量倒塌,将阻尼器引入村镇木结构的抗风控制中;同时针对现有木结构模拟中榫卯节点的恢复力模型多采用线弹性,没有考虑节点塑性变形而导致与实际情况存在很大差别的问题,在木结构分析时考虑节点的塑性特征。分析了该结构在强风作用下的动力反应,通过数值模拟验证了粘弹性阻尼器在木结构抗风减振方面的良好效果。结果表明:考虑节点非线性时木结构的层间位移明显减小,阻尼器的耗能也有所减小,但对减振率影响不大。

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