Seismic behavior of K-shaped eccentrically braced frames with high-strength steel: Shaking table testing and FEM analysis
发布时间：2024-08-09
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- 所属单位：
- 土木工程学院
- 发表刊物：
- JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
- 关键字：
- EBFs Dynamic analysis High-strength steel Shake table test Seismic performance
- 摘要：
- A shaking table test was carried out on 1:2 scale three-storey K-shaped eccentrically braced frames with high strength steel (K-HSS-EBFs). The acceleration, displacement, and strain responses of the specimen under different peak acceleration ground motions were measured and analyzed. The natural frequency, acceleration amplification factor, storey drift, and distribution of horizontal seismic actions for the model structure were investigated. Finite element models were established for elastoplastic time history analysis on the model structure. Finite element analysis showed that the links were the weakest part of the structure, especially the webs of the links and welds near the connections between the links and frame beams. The results showed that KHSS-EBFs may absorb excessive seismic energy, enter the elastoplastic state, and even fail under strong earthquakes owing to shear deformation of the links during vibration. The PBPD method is found to be suitable for use in the design of K-HSS-EBFs. In addition, the K-HSS-EBFs can fulfill the seismic requirements under limiting state. These findings will be helpful for the future design of K-HSS-EBFs. (C) 2018 Elsevier Ltd. All rights reserved.
- 合写作者：
- Wang, Feng,Li, Shen
- 第一作者：
- 苏明周
- 论文类型：
- 期刊论文
- 通讯作者：
- Tian, Xiaohong,Lian, Ming
- 学科门类：
- 工学
- 卷号：
- 卷: 143 页: 250-263
- ISSN号：
- 0143-974X
- 是否译文：
- 否
- 发表时间：
- 2018-04-01