粘弹性阻尼墙及其高层建筑结构耗能减振性能研究

发布时间：2018-05-11 03:17

本文选题：粘弹性阻尼墙 + 材料性能试验　；参考：《哈尔滨工业大学》2014年硕士论文

【摘要】：粘弹性阻尼器是一种常用于减小高层建筑地震和风振响应的减振元件。本文对一种新型粘弹性阻尼墙板进行试验和理论研究，探索其用于高层建筑地震和风致振动控制的有效性。主要研究内容包括：（1）通过对五种粘弹性材料(PR04，PR06，PR10，PR31，S251)进行材料性能试验，研究了每种粘弹性材料的性能随加载频率、剪应变幅值和循环圈数的变化趋势，以及每种材料的极限变形能力。根据试验结果，选取PR04用于粘弹性阻尼墙。（2）根据试验结果，，基于Kelvin模型建立粘弹性阻尼墙的分析模型，以一栋36层的框架剪力墙结构为研究对象，利用ABAQUS有限元软件建立安装和未安装粘弹性阻尼墙结构的有限元模型。通过对两种结构进行弹塑性时程分析，比较两种结构在多遇和罕遇地震下的地震响应。结果表明，粘弹性阻尼墙可以有效减小结构的地震响应。（3）通过自回归模型(Auto Regressive model)模拟脉动风速时程，对安装和未安装粘弹性阻尼墙的高层建筑进行风振响应时程分析。分析结果表明，粘弹性阻尼墙可以有效减小结构的风振响应。其中对加速度的控制效果优于对位移和内力的控制效果。
[Abstract]:Viscoelastic dampers are commonly used to reduce the seismic and wind vibration responses of high-rise buildings. This paper studies a new type of viscoelastic damped wall panels and studies the effectiveness of its application to the control of earthquake and wind vibration in high-rise buildings. The main contents include:
(1) through the material performance test of five viscoelastic materials (PR04, PR06, PR10, PR31, S251), the variation trend of the properties of each viscoelastic material with the loading frequency, the shear strain amplitude and the cycle number, and the ultimate deformation ability of each material are studied. According to the test results, the PR04 is selected for the viscoelastic damping wall.
(2) based on the test results, based on the Kelvin model, the analysis model of viscoelastic damped wall is established. A finite element model of a 36 story frame shear wall structure is established by using the ABAQUS finite element software to establish the finite element model of the installation and non viscoelastic damped wall structure. By the elastoplastic time history analysis of the two structures, the two structures are compared. Seismic responses under frequent and rare earthquakes show that viscoelastic damping walls can effectively reduce the seismic response of structures.
(3) using the autoregressive model (Auto Regressive model) to simulate the time history of fluctuating wind speed, the wind vibration response time history analysis is carried out for the tall buildings installed and without viscoelastic damped walls. The results show that the viscoelastic damping wall can effectively reduce the wind vibration response of the structure. The control effect of acceleration is better than the control of displacement and internal force. Effect.

【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU973.31

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