Finite Element Model Fractional Steps Updating Strategy for Spatial Lattice Structures Based on Generalized Regression Neural Network

Table 1

Tube types and specifications (mm).

Tubes numbering	1A	1B	1C	2A	3A	4A
Tubes types	Φ			Φ	Φ	Φ
Bolts	M16			M24	M24	M27