摘要
针对工业厂房结构横向由于无法安装支撑抗侧力体系,容易在地震作用下破坏的问题,提出了厂房横向采用智能力矩控制器的抗震设计计算方法.建立了压电材料智能力矩控制器的力学模型,并推导了力矩控制器对具有变截面柱厂房结构的主动控制力表达式.建立了安装有智能力矩控制器的厂房排架横向地震反应的受控运动方程.通过数值分析,考察了在不同地震地面运动作用下智能力矩控制器的控制效果并进行了相应的参数研究.结果表明压电材料智能力矩控制器可以有效地减小厂房结构的地震反应,减振率可达25%以上.
Industrial frames are prone to lateral seismic excitations because of the absence of lateral brace systems.The seismic mitigation approach was actively proposed by using smart moment controllers.The mechanical model of the piezoelectric smart moment controller was established and the expression of the active control force produced by the smart moment controller was determined.The motion of equation of the controlled industrial frame incorporated with moment controllers was established for suppressing lateral seismic responses.The control performance of the smart controller on the industrial frame subjected to various ground motions was investigated numerically through the corresponding parameter study.The made observations demonstrate that the smart moment controller developed in this study can effectively suppress the lateral seismic responses of industrial frames.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
北大核心
2010年第12期1601-1605,共5页
Journal of Harbin Engineering University
基金
国家自然科学基金资助项目(50708083)
贵州省科技厅国际合作资助项目(黔科合外G字[2009]700128)
关键词
压电材料
智能力矩控制器
工业厂房
主动控制
piezoelectric material
smart moment controller
industrial frame
active control
