| 强震下K型偏心支撑钢框架滞回能需求层间分布 |
| |
| 引用本文： | 丁蕾,顾强.强震下K型偏心支撑钢框架滞回能需求层间分布[J].苏州科技学院学报(工程技术版),2014(2):25-31. |
| |
| 作者姓名： | 丁蕾 顾强 |
| |
| 作者单位： | 苏州科技学院土木工程学院,江苏苏州215011 |
| |
| 基金项目： | 国家自然科学基金项目（51278320） |
| |
| 摘 要： | 选用10条远场和10条近场地震波对K型偏心支撑钢框架进行了非线性动力时程分析,探索了远场与近场地震下结构滞回能层间分布规律.研究表明,K型偏心支撑钢框架的主要耗能区域分布在耗能梁段;近场地震对结构滞回能需求及滞回能层间分布有较大影响,对各构件耗散的滞回能占总滞回耗能的比值也有很大影响.根据非线性时程分析结果,提出了K型偏心支撑钢框架滞回能层间分布系数的简化计算公式.
|
| 关 键 词： | K型偏心支撑钢框架 滞回能 层间分布系数 近场地震 |
The hysteretic energy demand distribution through the height of K-type eccentrically braced steel frames under severe earthquakes |
| |
| DING Lei,GU Qiang.The hysteretic energy demand distribution through the height of K-type eccentrically braced steel frames under severe earthquakes[J].Journal of University of Science and Technology of Suzhou：Engineering and Technology,2014(2):25-31. |
| |
| Authors: | DING Lei GU Qiang |
| |
| Affiliation: | (School of Civil engineering, SUTS, Suzhou 215011,China) |
| |
| Abstract: | Inelastic dynamic time-history analysis of K-type eccentrically braced steel frames（EBSF） were carried out using 10 far-fauh earthquake ground motions （EQGM） and 10 near-fault EQGM, in order to analyze the hys- teretic energy demand distribution through the height .It is found that link beam is the predominated energy dis- sipated region of K-type EBSF. Near-fault EQGM have large influence on the hysteretic energy , distribution , and the hysteretic energy ratio of component to structure. A simplified calculation formula of story weight factor of the hysteric energy is proposed for K-type EBSF by the results. |
| |
| Keywords: | K-type eccentrically braced steel frames hysteretic energy story weight factor ground motions characteristics system characteristics near-fault earthquake |
| 本文献已被 CNKI 维普 等数据库收录！ |
