原文传递
Seismic Collapse Response of Steel Moment Frames with Deep Columns
| 题名： | Seismic Collapse Response of Steel Moment Frames with Deep Columns |
| 其他题名： | AISC.2005a.Prequalified connections for special and intermediate steel moment frames for seismic applications.ANSI/AISC 358-05.Chicago:AISC. |
| 正文语种： | 英文 |
| 作者： | Tung-Yu Wu |
| 关键词： | column；simulation；vertical；moment；lapse；selectin；frame；behavior；global；stability |
| 摘要： | The seismic collapse behavior of 4-story and 8-story steel special moment frames (SMFs) with deep columns is investigated using computational simulation. The models used are capable of modeling local and global instabilities and explicitly representing both sidesway and vertical collapse behaviors. Three key factors that affect the collapse potential of the frames are studied: (1) column lateral bracing; (2) level of column gravity load; and (3) column section properties. It is shown that, even when they satisfy current seismic provisions, deep columns can suffer early global instability, leading to vertical system collapse at relatively low drift levels. The findings indicate that the performance of moment frames can be improved by limiting the axial load levels on exterior columns, carefully selecting member sizes to limit depth-thickness and overall slenderness of the columns, and providing adequate lateral bracing. It is suggested that column shortening, in itself, is a benign effect that does not compromise serviceability or contribute to the collapse of a well-designed frame. |
| 出版年： | 2018 |
| 论文唯一标识： | P-26Y2018V144N09018 |
| 英文栏目名称： | TECHNICAL PAPERS |
| doi： | 10.1061/(ASCE)ST.1943-541X.0002150 |
| 期刊名称： | Journal of Structural Engineering |
| 拼音刊名(出版物代码)： | P-26 |
| 卷： | 144 |
| 期： | 09 |
| 页码： | 239-250 |
相关文献
- Development of Enhanced Seismic Compactness Requirements for Webs in Wide-Flange Steel Columns
- Seismic Performance of Buildings with Special Steel Moment Frames Using Modified End Plate and Shear Plate Connections
- Influence of Seismic Design Evolution on the Seismic Collapse Behavior and Losses of Prototype Steel Buildings with Moment-Resisting Frames
- Experimental Evaluation of Steel Columns under Seismic Hazard-Consistent Collapse Loading Protocols
- Collapse Response and Design of Deep Steel Columns Subjected to Lateral Displacement
- Experimental Studies on Progressive Collapse Resistance of Steel Moment Frames under Localized Furnace Loading
检索历史
应用推荐
