Experimental Study of Composite Members in Spatial Grid Structure Subjected to Ultralow-Cyclic Axial Force

Figure 13

Comparison of load-displacement hysteretic curves at ends of composite specimens. (a) Hysteretic curve under system. (b) Hysteretic curve under system II. (c) Hysteretic curve under system III. (d) Hysteretic curve under system IV. (e) Hysteretic curve under system V. (f) Hysteretic curve under system VI.

(a)

(b)

(c)

(d)

(e)

(f)