Research Article
Effect of Fiber Angles on Hybrid Double-Tube Concrete Columns under Monotonic Axial Compression
Figure 11
Damage processes of typical specimens. (a) B4-F80-M1 ( = ±80°; = 4 mm; Type B steel tube). (b) B4-F60-M2 ( = ±60°; = 4 mm; Type B steel tube). (c) B4-F45-M2 ( = ±45°; = 4 mm; Type B steel tube).
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