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In order to expand the application of perfobond leiste (PBL) shear connectors, the low-cycle reciprocating loading tests were conducted on one steel reinforced concrete composite shear wall and four steel plate concrete composite shear walls with PBL shear connectors. The failure mechanism and seismic performance of the specimens were studied. The results show that the failure modes of shear walls under horizontal loads can be divided into two types including bending failure and bending-shear failure. The aspect ratio of the walls, the configuration of steel core plates and the arrangement of the PBL shear connectors are important factors affecting failure modes. PBL shear connectors can facilitate steel core plates working well with the concrete. Besides, the configuration of steel core plates can improve the bearing capacity of the walls. The bearing capacity of shear walls decreases with the increase of aspect ratios, and the vertical arrangement of PBL shear connectors is better than the horizontal arrangement of PBL shear connectors. Based on the design of compression-bending capacity of steel reinforced concrete columns recommended in EN 1994-1-1:2004, a design formula of compression-bending capacity for steel plate concrete composite shear walls with PBL shear connectors is proposed. It is verified that the design formula can accurately calculate the compression-bending capacity of the shear walls with large aspect ratios by comparison.
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| 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 |
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