Shape Optimization and Stability Analysis for Kiewitt Spherical Reticulated Shell of Triangular Pyramid System

Table 1

Optimal results of Kiewitt spherical reticulated shell of triangular pyramid system.

Span/m	Rise-span; ratio/1	The range; of grids		Optimal grid number		Optimal thickness/m	Optimal; weight/t	Optimal; solution S-F/S-Kn-Nx
		Kn	Nx	Kn	Nx
90	1/7	6/8/10/12	12~20	6	14	1.5	185.43	90-1/5-8-15
	1/6	6/8/10/12	12~20	6	14	1.0	180.51
	1/5	6/8/10/12	12~20	8	15	1.0	147.14
	1/4	6/8/10/12	12~20	6	15	1.5	159.60
	1/3	6/8/10/12	12~20	6	16	1.0	186..84