摩擦阻尼结构可靠度分析  

Reliability Analysis of Fictional-Damped Structures

作　　者：陆立新 吴斌[2] 欧进萍[2] 

机构地区：[1]大地建筑事务所(国际),上海200122 [2]哈尔滨工业大学土木工程学院,哈尔滨150090

出　　处：《结构工程师》2009年第3期80-83,共4页Structural Engineers

摘　　要：摩擦阻尼器主要是通过受有预紧力的两块金属固体之间相对滑动所产生的摩擦力来耗散结构振动能量,以达到减振的目的。阻尼器如同荷载和结构一样,其特性具有随机性。由于直接测量装在结构上的摩擦阻尼器的摩擦系数的实验费用较高,文中通过直接测量摩擦片摩擦系数,对样本进行数理统计,确定摩擦阻尼器的摩擦力概率模型。考虑摩擦力的随机性,分析了这种随机性产生的原因,并且把它应用于工程实践,分析了摩擦阻尼结构的可靠度。The frictional force of fictional damper is generated by relative slip of two impacted metals, and the energy is dissipated by the force. As well as load and stucture,damper properties have randomness. Perimental expenses through measuring fictional module of fictional damper which is assembled on the structure is high. Through experiment about measuring fictional module of fictional slips, the probability density function about slip force of fictional dampers was set up. Considering the randomness of the slip force and reliability, the reliability of fictional damped structures including a practical building was analyzed.

关 键 词：随机性 结构可靠度 摩擦阻尼器 减振 摩擦片 

分 类 号：TU352.1[建筑科学—结构工程]