基于国产钢材的新型分阶段软钢耗能装置性能研究  

STUDY ON PERFORMANCE OF NEW PHASED MILD STEEL ENERGY DISSIPATION DEVICE BASED ON DOMESTIC STEEL

作　　者：尚春方 范圣刚[1] 刘承亮[1] 朱哲达[1] 丁智霞 

机构地区：[1]东南大学土木工程学院,南京210096

出　　处：《钢结构》2014年第3期32-37,共6页Steel Construction

基　　金："十二五国家科技支撑计划项目"资助(2012BAJ13B01-4)

摘　　要：基于国产钢材良好的耗能性能,提出一种新型的软钢耗能装置,此耗能装置不仅具有全截面同时屈服的特性,还具有分阶段耗能的特点。通过有限元软件ABAQUS对该新型耗能装置及其重要组成部件———单片耗能钢片分别进行线性加载、滞回加载以及疲劳加载,对其耗能机理、力学性能、耗能性能及疲劳性能进行分析研究。结果表明:此新型耗能装置滞回曲线饱满,耗能性能优越,分阶段耗能特点明显,且性能稳定,具有广阔的应用前景。Based on the good energy dissipation performance of domestic steel, a new type of energy dissipation device is presented, the device not only has the total cross-section yield characteristics, but also has the characteristics of phased energy dissipation. Through finite element software ABAQUS for the new type energy dissipation device and its important components monolithic sheet steel consumption for linear load, hysteresis loading and fatigue loading, the energy dissipation mechanism, mechanical property, energy dissipation performance and fatigue performance were analyzed. Results show that the proposed new energy dissipator full hysteretic curve, superior dissipation performance, obvious features of phased energy dissipation, stable performance and had wide application prospect.

关 键 词：软钢 分阶段耗能 面内屈服 抛物线 

分 类 号：TU511.3[建筑科学—建筑技术科学]