A Structural Calculation Model of Shield Tunnel Segment: Heterogeneous Equivalent Beam Model

Table 1

Equivalent parameters on joints section.

Joints	Inner force evaluated by UR model		Force-bearing types	Equivalent parameters
	M (kN·m)	N (kN)		(m)	(m)	(GPa)
B	67.99	1354.51	Positive bending moment and small eccentricity pressing	0.3	1.5	7.36
C	−76.74	1566.17	Hogging bending moment and small eccentricity pressing	0.3	1.5	13.05
D	31.94	2070.37	Positive bending moment and small eccentricity pressing	0.3	1.5	9.71