原文传递
Cyclic Testing of Reinforced Concrete Walls with Distributed Minimum Vertical Reinforcement
| 题名： | Cyclic Testing of Reinforced Concrete Walls with Distributed Minimum Vertical Reinforcement |
| 正文语种： | 英文 |
| 作者： | Yiqiu Lu; Richard S. Henry; Ronald Gultom;Quincy T. Ma |
| 作者单位： | Univ, of Auckland |
| 关键词： | Reinforced concrete wall; Minimum vertical reinforcement; Seismic design; Plastic hinge length; Drift capacity; Reinforcement buckling; Reinforcement fracture; Concrete and masonry structures. |
| 摘要： | During the 2010/2011 Canterbury earthquakes in New Zealand, several reinforced concrete (RC) walls in multistory buildings formed only a limited number of cracks at the wall base with a fracture of vertical reinforcement observed. Recent research suggests that walls designed with minimum vertical reinforcement in accordance with current New Zealand standards may not exhibit large ductility during earthquakes. To investigate this theory further, a total of six flexure dominant RC walls with two layers of distributed vertical reinforcement in accordance with minimum requirements were tested. The test walls were typical of multistory RC walls in regions with moderate seismicity in New Zealand and were used to examine the effect of shear span ratio, axial load, and reinforcement ties in the wall end region. The experimental results confirmed that the current minimum vertical reinforcement limits are insufficient to ensure that a large number of secondary ,flexural cracks will occur in the plastic hinge region. The lateral-load response of the walls was controlled by one or two main large flexural cracks at the wall base. This behavior greatly reduced the spread of plasticity and resulted in several potential issues, such as limited drift capacity and premature reinforcement buckling or fracture. Recommendations are provided related to minimum vertical reinforcement requirements, plastic hinge length assumptions, ultimate drift capacity, and antibuckling reinforcement. DOI: 10.1061/(ASCE)ST. 1943-541X.0001723. © 2016 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： | 04016225 |
相关文献
- Data Set for Cyclic Tests of Eleven Lightly Reinforced Concrete Walls
- Cyclic Loading Test for Composite Walls with U-Shaped Steel Boundary Elements
- Cyclic Tests of Steel Frames with Concealed Vertical Slits in Reinforced Concrete Infill Walls
- Response of Full-Scale Slender Masonry Walls with Conventional and NSM Steel Reinforcement Subjected to Axial and Out-of-Plane Loads
- Behavior of Nuclear RC Shear Walls Designed for Similar Lateral Strengths Using Normal-Strength versus High-Strength Materials
- Cyclic In-Plane Shear Behavior of Composite Plate Shear Walls-Concrete Encased
检索历史
应用推荐
