PDF
Full
Outline
To investigate the seismic performance of partially encased composite columns-reinforced concrete shear walls (referred to as PEC column-RC shear walls), two different connection types were designed and subjected to low-cycle reversed loading tests. The study focused on their failure processes, hysteretic behavior, energy dissipation capacity, stiffness degradation, and strength degradation. Additionally, finite element models were developed to simulate their behavior, which were validated against the experimental results. The models were also used to analyze the seismic performance of PEC column-RC shear walls under different concrete strength grades and axial compression ratios. The results indicate that PEC column-RC shear walls ultimately experience shear failure, yet they exhibit high ductility and energy dissipation capacity, demonstrating excellent seismic performance. In practical engineering applications, the weak-axis connection method for PEC columns can effectively meet seismic performance requirements. As the concrete strength increases, the load-bearing capacity of PEC column-RC shear walls improves, although the ductility decreases. With an increase in the axial compression ratio, the rate of increase in load-bearing capacity diminishes. It is recommended to keep the axial compression ratio below 0.4 in practical engineering designs.
PDF
60
31
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
