软钢棒体阻尼器耗能元件设计与性能分析  

Design and performance analysis of energy-dissipating element of mild steel rod damper

作　　者：孙威[1] 张铁山[1] 孟宪宏[1] 

机构地区：[1]沈阳建筑大学土木工程学院,辽宁沈阳110168

出　　处：《世界地震工程》2015年第2期196-201,共6页World Earthquake Engineering

基　　金：国家科技支撑计划(2012BAJ11B02)

摘　　要：设计了3种不同截面形式的软钢棒体耗能器元件,其中包括1种等截面棒体阻尼器耗能元件和2种变截面棒体阻尼器耗能元件。采用有限元软件ABAQUS对这3种耗能元件的耗能性能进行了数值模拟分析,并利用正交试验法研究了耗能器元件的直径、长细比、锚固端板厚度、内缩直径以及端部延伸长度等参数对元件耗能性能的影响。结果表明:变截面棒体耗能元件比等截面棒体耗能元件的耗能性能更强;此外,对于变截面棒体耗能元件,如果将锚固端等直径延伸一段距离,则其耗能性能会得到很大的改善。Three mild steel rod energy dissipation elements, including one uniform cross-section and two variable cross-section energy dissipation elements were designed numerical simulation of the three element was carried out by use of FE software ABAQUS and influence of parameters, such as diameter, slenderness ratio, thickness of anehord end plate internal constriction diameler and end extension length on energy dissipation behavior of the element was researched. Results show that energy dissipation capacity of variable cross-section element is stonger than that of u- niform cross-section one. In addition,if the equal diameter part entends certain distance, the energy dissipation ca- pacity of the element would be improved significanty.

关 键 词：软钢棒体阻尼器 耗能元件 数值模拟 正交试验 耗能系数 

分 类 号：TU375.4[建筑科学—结构工程]