| 带粘弹性阻尼器结构振动台试验设计——基于OpenSees的阻尼器尺寸选择 |
| |
| 引用本文： | 周颖,龚顺明,吕西林.带粘弹性阻尼器结构振动台试验设计——基于OpenSees的阻尼器尺寸选择[J].地震学刊,2014(3):308-313. |
| |
| 作者姓名： | 周颖 龚顺明 吕西林 |
| |
| 作者单位： | 同济大学土木工程防灾国家重点实验室,上海200092 |
| |
| 基金项目： | 国家自然科学基金项目（51078274）;上海市教委科研创新重点项目（12zz036）资助 |
| |
| 摘 要： | 基于带粘弹性阻尼器钢框架结构振动台试验,提出了基于OpenSees的阻尼器尺寸选择方法。首先,通过试验获得一种特定尺寸阻尼器的滞回曲线,根据粘弹性阻尼器相似理论,将其转换为一系列不同尺寸的阻尼器滞回曲线。使用Bouc-Wen模型对它们进行参数识别并添加到结构分析模型中,利用OpenSees软件对添加阻尼器结构和纯框架结构进行不同水准的3条地震波下动力时程分析。最后,通过综合考查阻尼器的减震效果和最大应变来确定合适的用于振动台试验当中的阻尼器尺寸。结果表明,本方法可避免对不同尺寸阻尼器逐个进行性能试验,Bouc-Wen模型可较准确地模拟阻尼器力学性能,OpenSees非线性动力时程分析可准确模拟试验过程,根据提出的选择指标能简单方便地确定阻尼器的尺寸。
|
| 关 键 词： | 粘弹性阻尼器 振动台试验 阻尼器尺寸选择 Bouc-Wen模型 OpenSees |
Design of Shaking Table Test on Steel Structure Added with Viscoelastic Dampers --Size Selection of Dampers Based on OpenSees |
| |
| ZHOU Ying,GONG Shun-ming,LV Xi-lin.Design of Shaking Table Test on Steel Structure Added with Viscoelastic Dampers --Size Selection of Dampers Based on OpenSees[J].Journal of Seismology,2014(3):308-313. |
| |
| Authors: | ZHOU Ying GONG Shun-ming LV Xi-lin |
| |
| Institution: | (State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China) |
| |
| Abstract: | In this paper, the size selection method of dampers is based on an example of shaking table test on a 3-story steel structure added with VE dampers. First, cyclic loading test of a damper with a certain size is conducted to obtain the hysteretic loop. And the hysteretic loop is converted to those of dampers with other various sizes through the similarity relations of VE dampers. All kinds of dampers are para- metrically identified by using Bouc-Wen model and added into the steel structure model as link elements. The dynamic time-history analyses of the structures added with various sizes of dampers and structure without damper under 3 earthquake motions with various PGA are executed using OpenSees. Through a comprehensive consideration of control effect and maximum strain of the dampers, the appropriate damper size is determined. In this method, based on the similarity relations, dampers with various sizes have no need to be tested one by one in order to obtain the hysteretic loops. The hysteretic loops can be well parametrically identified by Bouc-Wen model, and the shaking table test can be simulated by OpenSees. The appropriate damper size can be conveniently determined for the proposed selection target. |
| |
| Keywords: | viscoelastic damper shaking table test size selection Bouc-Wen model OpenSees |
| 本文献已被 维普 等数据库收录！ |
