原文传递
Experimental Evaluation of Inelastic Higher-Mode Effects on the Seismic Behavior of RC Structural Walls
| 题名： | Experimental Evaluation of Inelastic Higher-Mode Effects on the Seismic Behavior of RC Structural Walls |
| 正文语种： | 英文 |
| 作者： | Hassan Fatemi, Ph.D.; Patrick Paultre, M.ASCE;Charles-Phillipe Lamarche, M.ASCE |
| 作者单位： | Univ, of Sherbrooke |
| 关键词： | Higher mode effects; Hybrid test; Shear force amplification; Rein forced concrete (RC) structural wall |
| 摘要： | Most midrise and high-rise reinforced concrete (RC) buildings rely on RC structural walls as their seismic force resisting system. The contribution of higher lateral modes to the elastic response of RC structural walls produces base shear forces significantly larger than those resulting from the static code procedure. The relative contribution of higher lateral modes increases due to an additional dynamic effect occurring while the RC wall is yielding at the base. Accordingly, the first-mode contribution saturates and reduces as its corresponding period elongates and higher modes assume a more relative contribution. This paper describes an original pseudodynamic hybrid test that has been used to experimentally measure the shear amplification during an earthquake excitation of a model shear wall structure. The experimental results show that the shear amplification factor due to nonlinear higher modes effects can be larger than 1.5. Additionally, the test results indicate that the modem structural codes appear to be conservative in calculating the shear force resistance of RC structural walls. |
| 出版日期： | 2020 |
| 出版年： | 2020 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | Vol.146 |
| 期： | No.04 |
| 页码： | 04020016 |
相关文献
- Special Collection on Recent Advances in Reinforced Concrete Walls Designed to Resist Seismic Loads
- Seismic Shear Forces in Post-Tensioned Hybrid Precast Concrete Walls
- Simplified Method for the Preliminary Design of Shear-Controlling Rocking-Isolation Podium Systems for Tall Buildings
- Seismic Collapse Risk Assessment and FRP Retrofitting of RC Coupled C-Shaped Core Walls Using the FEMA P695 Methodology
- Experimental Investigation on Rehabilitation of Corroded RC Columns with BSP and HPFL under Combined Loadings
- Seismic-Response Analysis of RC C-Shaped Core Walls Subjected to Combined Flexure, Shear, and Torsion
检索历史
应用推荐
