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

Table 1

Material properties of each part.

Part	fy (MPa)	fu (MPa)	E (MPa)	ν
Bolt-sphere	365	600	2.0 × 105	0.25
High-strength bolt	900	1000	2.06 × 105	0.29
Steel tube	301	417	1.97 × 105	0.27
Sleeve dowel pin end cone	254	470	2.06 × 105	0.29