磁流变阻尼器受控框架结构的空间杆系计算模型

发布时间：2019-01-01 10:38

【摘要】：为了分析加入磁流变阻尼器(MRD)框架结构的多维减震性能和扭转振动特性,基于杆系模型建立了MRD受控框架结构的空间杆系计算模型。以十层钢筋混凝土(RC)框架结构为例,采用Matlab软件开发了无控和MRD受控RC框架结构的空间杆系计算模型程序,在地震荷载作用下分别进行了动力时程分析,对未控和有控下框架典型节点X、Y、Z向的位移、加速度时程响应和结构的空间扭转振动响应进行了对比。结果表明,MRD可有效减小RC框架结构的多维位移和加速度时程响应,若阻尼器位置设置不当,将会增大结构的扭转振动响应。结果验证了MRD受控框架结构的空间杆系计算模型及其Matlab程序的正确性和有效性。
[Abstract]:In order to analyze the multi-dimensional vibration absorption and torsional vibration characteristics of (MRD) frame structure with magnetorheological damper, the spatial bar system calculation model of MRD controlled frame structure is established based on the rod system model. Taking ten story reinforced concrete (RC) frame structure as an example, the spatial bar calculation model program of uncontrolled and MRD controlled RC frame structure is developed by using Matlab software. Dynamic time history analysis is carried out under the action of earthquake load, respectively. The displacement, acceleration time-history response and spatial torsional vibration response of typical joints of frame are compared. The results show that MRD can effectively reduce the multi-dimensional displacement and acceleration time history response of RC frame structure. If the damper position is not set properly, the torsional vibration response of the structure will be increased. The results verify the correctness and validity of the spatial bar system calculation model of MRD controlled frame structure and its Matlab program.
【作者单位】：郑州大学力学与工程科学学院;郑州大学土木工程学院;郑州大学综合设计研究院有限公司;
【基金】：国家自然科学基金(51408555) 河南省高校科技创新团队(15IRTSTHN026) 河南省高等学校重点科研项目(16A560011) 郑州市科技攻关项目(153PKIGG096)
【分类号】：TU352.1

【相似文献】