Journal
ENGINEERING STRUCTURES
Volume 220, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.engstruct.2020.111013
Keywords
Double-skin composite wall; Corrugated faceplate; Seismic performance, Cyclic loading; Bolt spacing; Flexural strength; Drift capacity
Categories
Funding
- National Natural Science Foundation of China [51378340, 51878447, 51678406]
Ask authors/readers for more resources
This paper presents the cyclic behavior of double-skin composite (DSC) walls for mid-to high-rise buildings, which consist of concrete filled steel tubes (CFTs), a pair of steel faceplates connected by tie bolts, and infill concrete. Four 1/3-scale DSC wall specimens, varying in faceplate profile and tie bolt spacing, were tested under combined axial and cyclic lateral loading. All specimens failed in flexure with a progression of steel tube frac-ture, steel faceplate buckling, and concrete crushing at wall bottom. The corrugated DSC walls and the flat DSC wall with standard bolt spacing were able to achieve an ultimate drift ratio around 3.4% and a ductility ratio greater than 5.4, while the flat DSC wall with bolt spacing 50% over code limit presented early faceplate buckling and undesired seismic performance. Compared to flat DSC walls, corrugated DSC walls, even with a doubled tie bolt spacing, had considerably higher initial stiffness, ductility ratio and energy dissipation. Formulations are proposed for predicting the lateral strength and drift capacity of corrugated DSC walls without elastic local buckling. The difference between the predicted and measured capacity for either lateral strength or drift is on average less than 6%.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available