摘要
本文研究了叠层橡胶基础隔震在强震中对室内浮放设备的保护作用。将浮放设备简化为刚性块体,并把放置设备的基础视为刚性的。以华中理工大学土木工程系在振动台上建造的叠层橡胶基础隔震单层钢筋混凝土框架结构房屋模型为计算实例,振动台输入谐波,非隔震与隔震两种情况下块体的响应对比表明,强震中基础隔震对室内浮放设备具有良好的防护作用。
It is well-known that base-isolation can produce a very substantial reduction in seismic response of building, and can protect the internal equipment against damage in strong seismic event. The benefits of base-isolated building with laminated rubber bearings (LRB) for indoor free-standing equipment is presented in the paper. The free-standing equipment is modeled as a rigid body, and the base on which the equipment stands is regarded to be rigid. Taking the model of one story concrete reinforced frame building base-isolated by LRB under harmonic excitation on the shaking table in the Department of Civil Engineering of Huazhong University of Science & Technology as an analysis example, it can be concluded that building base-isolated by LRB can very well meet the need of protecting indoor free-standing equipment under strong seismic.
出处
《振动与冲击》
EI
CSCD
1998年第4期62-65,共4页
Journal of Vibration and Shock
基金
国家教委博士点基金资助项目
关键词
浮放设备
叠层橡胶基础
隔震
房屋
建筑模型
free-standing equipment, building base-isolated with laminated rubber bearings,building model, shaking table test
