INFLUENCE OF INPUTTING DIMENSIONS OF EARTHQUAKE WAVES AND DAMPING RATIO ON SEISMIC RESPONSE TIME-HISTORY ANALYSIS OF MEGA STEEL FRAMES
-
摘要: 通过算例分析比较,研究了地震波输入维数和阻尼比对巨型钢框架结构时程分析的影响。结果表明,对于完全对称的结构,也应该考虑地震波的三维输入。阻尼比对巨型钢框架结构弹塑性时程分析的影响很大,最好进行试算以确定阻尼比的取值。Abstract: The influence of dimensions of earthquake waves and damping ratio on the response time-history analysis of mega steel frame is studied through analysis of calculation examples.The result shows that earthquake waves should be inputted from three directions even for symmetrical structures.It also shows that influence of damping ratio on elastoplastic response time-history analysis is great and it is better to determine the damping ratio of steel structures by pilot calculation.
-
[2] GB 50011-2001 建筑抗震设计规范 李君,张耀春.超高层结构的新体系--巨型结构.哈尔滨建筑大学学报,1997(6):21~27 [3] 李宏男.结构多维抗震理论与设计方法.北京:科学出版社,1998 [4] 王雪生,薛素铎,曹资.结构多维地震作用研究综述及展望(Ⅰ)--地震动输入.世界地震工程,2001,17(4):27~33 [5] 沈聚敏,周锡元.抗震工程学.北京:中国建筑工业出版社,2000 [6] JGJ 99 98 高层民用建筑钢结构技术规程
点击查看大图
计量
- 文章访问数: 84
- HTML全文浏览量: 5
- PDF下载量: 90
- 被引次数: 0