原文传递
Interstory Drifts from Shear Strains at Base of High-Rise Concrete Shear Walls
| 题名： | Interstory Drifts from Shear Strains at Base of High-Rise Concrete Shear Walls |
| 其他题名： | Adebar,P.(2015)."Nonlinear rotation of capacity-protected foundations:The 2015 Canadian building code."Earthquake Spectra,in press. |
| 正文语种： | 英文 |
| 作者： | Poureya Bazargani |
| 关键词： | Concrete structures;Drift ratios;High-rise buildings;Lateral displacement;Seismic design;Shear deformation;Shear walls;Concrete and masonry structures |
| 摘要： | Shear strains may have negligible influence on maximum displacements at the top of slender shear walls, but may significantly increase interstory drift ratios at lower levels where gravity-load columns are often less flexible. A nonlinear finite-element (FE) model calibrated with experimental results confirmed that large shear strains occur in flexural tension regions of concrete walls due to vertical tension strains in the presence of diagonal cracks and in the absence of demand on the horizontal shear reinforcement. A fan of diagonal cracks will form at the base of flexurally hinging walls independent of the shear stress level. A parametric study confirmed that a principal strain angle of 75° can be used to estimate shear strains from vertical tension strains. Thus interstory drift ratios due to shear strains can be estimated from the easily calculated flexural demands. A simple and safe estimate of interstory drift ratio due to shear strains is 60％ of the global drift ratio. Interstory drift ratios from shear strains up to 0.8％ have been measured in slender wall tests. |
| 出版年： | 2015 |
| 论文唯一标识： | P-26Y2015V141N12024 |
| 英文栏目名称： | Technical Papers |
| doi： | 10.1061/(ASCE)ST.1943-541X.0001306 |
| 期刊名称： | Journal of Structural Engineering |
| 拼音刊名(出版物代码)： | P-26 |
| 卷： | 141 |
| 期： | 12 |
| 页码： | 264-273 |
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