(a)
(b)
(c)
(d)
(e)
(f)
(g)
(h)
Figure 35: Strain screw-thread steels and CFRP bars: (a) GB-1; (b) GB-2; (c) GB-3;(d) GB-4; (e) GB-5; (f) GB-6; (g) CB-1; (h) CB-3.