Girder Longitudinal Movement and Its Factors of Suspension Bridge under Vehicle Load

Table 1

Parameters for the main components of the bridge.

Member	Detailed location	A (m2)	Iyy (m4)	Izz (m4)	Ixx (m4)	E (GPa)	P (kg/m^3)
Stiffening girder truss	Top chords	0.06797	0.00458	0.00654	0.00804	210	8673
	Bottom chords	0.05032	0.00326	0.00323	0.00482	210	8673
	Bottom chord end	0.06000	0.00384	0.00381	0.00569	210	8673
	Web member	0.02141	0.00134	0.00013	2.3983 × 10^−6	210	8673
	Web member end	0.05472	0.00339	0.00225	0.00391	210	8673
	Diagonal webs	0.02451	0.00184	0.00021	1.658 × 10^−6	210	8673
	Diagonal web end	0.04560	0.00299	0.00156	0.00293	210	8673
Main cable	Main span and Chadong bank	0.46462	—	—	—	200	8043
	Jishou bank	0.48112	—	—	—	200	8043
Suspenders	J00/C01	0.02386	—	—	—	115	8680
	J01/C00/C02	0.01591	—	—	—	115	8680
	J02～C03	0.00779	—	—	—	115	8680

A, sectional area; Iyy, longitudinal bending moment inertia; Izz, transverse bending moment inertial; Ixx, torsional moment inertial; E, elastic modulus; ρ, density.