原文传递
Seismic Performance of Exposed Column-Base Plate Connections with Ductile Anchor Rods
| 题名： | Seismic Performance of Exposed Column-Base Plate Connections with Ductile Anchor Rods |
| 正文语种： | eng |
| 作者： | Hassan, Ahmad S.;Song, Biao;Galasso, Carmine;Kanvinde, Amit |
| 作者单位： | Univ Calif Davis Dept Civil & Environm Engn Davis CA 95616 USA;UCL Dept Civil Environm & Geomat Engn London WC1E 6BT England;UCL Dept Civil Environm & Geomat Engn London WC1E 6BT England|Scuola Univ Super Pavia Classe Sci Tecnol & Soc I-27100 Pavia Italy;Univ Calif Davis Dept Civil & Environm Engn Davis CA 95616 USA |
| 关键词： | Column bases;Moment frames;Steel connections;Dissipative connections |
| 摘要： | This paper presents full-scale experiments and computational analyses on exposed column-base plate connections with ductile anchors. The aim is to examine the seismic performance of these connections for their prospective use as weak bases, wherein steel moment frames are designed to concentrate inelastic rotations in the base connections rather than in the connected columns. The connections feature upset thread anchor rods in which the threads are milled to a smooth shank, providing a designated stretch length over which inelastic deformations may be concentrated. The shank is frictionally isolated from the footing using polyethylene tape. The four full-scale experiments investigate the effects of axial force, rod diameter, and rod material grade. The test specimens withstand (without anchor rod failure) the application of two Applied Technology Council-the Joint Venture partners of the Structural Engineers Association of California, the Applied Technology Council, and the Consortium of Universities for Research in Earthquake Engineering (ATC-SAC) protocols applied consecutively (each to drift amplitudes of 5%), followed by additional cycles to 6.5% drift amplitude. Complementary line element-based and continuum finite-element simulations are conducted to examine to what extent the experimentally observed response may be generalized to untested configurations. Implications for design are summarized, along with the limitations of the study. |
| 出版年： | 2022 |
| 期刊名称： | Journal of structural engineering |
| 卷： | 148 |
| 期： | 5 |
| 页码： | 04022028.1-04022028.19 |
相关文献
- Seismic Response of Block-Out Column-Base Plate Connections under Axial Compression and Flexure
- Column Base Connections for Hollow Steel Sections: Seismic Performance and Strength Models
- Seismic performance of a ductile rod exterior connection system for precast concrete industrial buildings
- Seismic performance of a ductile rod exterior connection system for precast concrete industrial buildings
- Seismic performance of a ductile rod exterior connection system for precast concrete industrial buildings
- Reversed Cyclic Behavior of Column-to-Foundation Connections in Low-Rise Metal Buildings
检索历史
应用推荐
