| 基于我国规范RC框架结构的延性折减系数 |
| |
| 引用本文： | 王树和, 张举兵, 宋波, 赵赤云. 基于我国规范RC框架结构的延性折减系数[J]. 工程科学学报, 2012, 34(6): 726-730. DOI: 10.13374/j.issn1001-053x.2012.06.020 |
| |
| 作者姓名： | 王树和 张举兵 宋波 赵赤云 |
| |
| 作者单位： | 1. 北京科技大学土木与环境工程学院, 北京 100083; |
| |
| 摘 要： | 提出了一种基于能力谱原理的多自由度体系延性折减系数计算方法,然后依据我国抗震规范按照不同高度、不同设防烈度设计了三组九个RC框架结构,并采用Pushover方法计算了它们的延性折减系数、超强系数和强度折减系数.发现高烈度区的结构,在相同高度下具有较低的储备强度,而在相同设防烈度下,结构越高强度储备越低.根据研究结果,指出了我国现行抗震规范下RC框架结构地震作用取值中的不足,并提出了对规范的修改建议.
|
| 关 键 词： | 建筑标准 钢筋混凝土 框架结构 延性 抗震设计 |
| 收稿时间： | 2011-05-06 |
Ductility reduction factors of RC frames according to Chinese seismic code |
| |
| WANG Shu-he, ZHANG Ju-bing, SONG Bo, ZHAO Chi-yun. Ductility reduction factors of RC frames according to Chinese seismic code[J]. Chinese Journal of Engineering, 2012, 34(6): 726-730. DOI: 10.13374/j.issn1001-053x.2012.06.020 |
| |
| Authors: | WANG Shu-he ZHANG Ju-bing SONG Bo ZHAO Chi-yun |
| |
| Affiliation: | 1. School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China;2. Department of Civil Engineering, Beijing Institute of Civil Engineering and Architecture, Beijing 100044, China |
| |
| Abstract: | A method for calculating the ductility reduction factor of a multi-degree-of-freedom system was proposed based on the capacity spectrum theory. The ductility reduction factors, overstrength factors, and strength reduction factors of 9 RC frames according to current Chinese seismic code with different heights and design seismic zones were calculated using the Pushover method. It is found that the structures with a higher design seismic level have a lower reserve strength when they have the same height, while the reserve strength will decrease with increasing height at the same design seismic level. The current Chinese seismic code was evaluated and some advices were proposed for its future modification. |
| |
| Keywords: | building standards reinforced concrete（RC） structural frames ductility seismic design |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《工程科学学报》浏览原始摘要信息 |
|
点击此处可从《工程科学学报》下载免费的PDF全文 |
|
