Testing on Axial Compression of RC Columns Reinforced by Different Methods of Winding Steel Wire
School of Civil Engineering and Architecture, Xi’an University of Technology, china
The effects on ductility of RC columns reinforced by different methods of winding steel wire was studied through testing axial compression of RC columns by winding steel wire. Four groups of specimens of RC columns reinforced by winding steel wire were tested for axial compressions, in which one group was unreinforced RC columns; the others were RC columns reinforced by winding steel wire. Both of horizontally-wound and helically-wound reinforcement methods were adopted and, winding spacings were 100mm and 50mm respectively, the load-bearing capacity and ductility of RC columns were researched under two reinforcement methods and different winding spcings. The testing results showed that the load-bearing capacity of RC columns reinforced by winding steel wire could not improve greatly, however, the ductility of RC columns could be improved larger. Moreover, comparing with the horizontally-wound method, the helically-wound method could increase the ductility of RC columns better, in addition, the smaller the winding spacing was, the greater the ultimate load and peak strain of RC columns could be.
© The Authors, published by EDP Sciences, 2016
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