原文传递
Collapse Resistance of a Seven-Story Structure with Multiple Shear-Axial Column Failures Using Hybrid Simulation
| 题名： | Collapse Resistance of a Seven-Story Structure with Multiple Shear-Axial Column Failures Using Hybrid Simulation |
| 正文语种： | 英文 |
| 作者： | Justin A. Murray, Ph.D., S.M.ASCE;Mehrdad Sasani, F.ASCE |
| 作者单位： | Northeastern Univ., Boston |
| 关键词： | Shear-axial failure; Reinforced concrete; Collapse resistance; Hybrid simulation; System-level response; Seismic effects. |
| 摘要： | The postfailure behavior of nonductile reinforced concrete columns under seismic loadings, and the system-level behaviors that can resist collapse after such failures, are not well understood due in part to limitations in the available experimental data. In this study, a pseudodynamic hybrid simulation was performed in order to capture the response of a seven-story reinforced concrete frame structure (height to width ratio of 1.6) under unidirectional pulse-type ground motion. Two full-scale first story columns were physically tested, one of which was a comer column under additional compression due to overturning moment. Both columns experienced shear and axial failures and completely lost their lateral and vertical load-carrying capacities. In both columns, the measured lateral deformation within the damaged region was larger than the total additional column drift during shear failure, as other regions of the column unloaded. The separation of concrete across the failure plane is shown to have significant effects on axial strength and stiffness loss in the failing columns. The hybrid nature of the simulation allowed for system-level study, including the relative importance of the frames and floor system to load redistribution after column failure. DOI: 10.106l/(ASCE)ST.1943-541X.0001746. © 2017 American Society of Civil Engineers. |
| 出版日期： | 2017.05 |
| 出版年： | 2017 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | Vol.143 |
| 期： | NO.05 |
| 页码： | 04017012 |
相关文献
- Application of Hybrid Simulation for Collapse Assessment of Post-Earthquake CFRP-Repaired RC Columns
- Seismic Collapse Response of Steel Moment Frames with Deep Columns
- Seismic Behavior of Rectangular Reinforced Concrete Walls Prone to Out-of-Plane Shear-Axial Failure under Bidirectional Loading
- Static Load Test on the Progressive Collapse Resistance of Precast Concrete Frame Substructure during and after High Temperature
- UNIVERSITY OF ALABAMA PARKING DECK
- Large-Scale Hybrid Simulation of a Steel Moment Frame Building Structure through Collapse
检索历史
应用推荐
