Reaction Spectrum Comparative Analysis of Seismic Performance of 62 m CFST Bridge with Curved-String Truss before and after Reinforcement

Table 8

Comparison of peak values of internal force at the fixed end of the bridge before and after reinforcement.

Bridge status	Working conditions	Axial force (kN)	Transverse shear (kN)	Vertical shear (kN)	In-plane bending moment (kN·m)	Out-of-plane bending moment (kN·m)
Before reinforcement	1	7107.28	26.26	201.04	245.23	179.34
	2	7040.11	33.53	191.18	202.00	391.85
	3	7101.63	26.96	192.03	206.22	181.07
After reinforcement	1	4977.01	20.31	398.83	778.69	300.28
	2	4905.89	47.11	378.36	727.27	924.61
	3	4960.34	20.75	412.73	761.11	301.82