Advances in Civil Engineering

Research Article

Effects of Revised Toll-by-Weight Policy on Truck Overloading Behavior and Bridge Infrastructure Damage Using Weigh-in-Motion Data: A Comparative Study in China

Table 10

Characteristic load effects (S_r) under the initial and revised toll-by-weight policies and their relative values to load effects (S_d) calculated using the design load model.


Policy	Estimated parameter		Bridge span (m)
Policy	Estimated parameter		5	10	15	20	25	30	35	40

Initial policy	Bending moment	u (kN·m)	483	1248	2267	3340	4569	5680	6896	8051
		ξ (×10⁻³)	−181	22	−19	−47	−59	−61	−72	−77
		Σ (kN·m)	43	66	112	166	210	263	315	374
		S_r (kN·m)	660	1792	3057	4398	5852	7275	8735	10197
		S_r/S_d	1.49	1.80	1.84	1.81	1.77	1.69	1.61	1.55
	Shear force	u (kN·m)	456	610	712	761	803	817	855	911
		ξ (×10⁻³)	16	15	−48	−57	−60	−102	−95	−104
		Σ (kN·m)	35	39	42	43	42	46	45	44
		S_r (kN·m)	738	923	979	1026	1058	1059	1098	1142
		S_r/S_d	1.76	1.98	1.91	1.84	1.75	1.63	1.58	1.54

Revised policy	Bending moment	u (kN·m)	422	1067	1626	2346	3023	3726	4418	5164
		ξ (×10⁻³)	−201	−80	64	73	37	62	41	48
		Σ (kN·m)	47	66	101	135	179	198	252	279
		S_r (kN·m)	605	1552	2611	3712	4588	5641	6657	7385
		S_r/S_d	1.36	1.56	1.57	1.53	1.39	1.31	1.23	1.17
	Shear force	u (kN·m)	426	476	500	515	526	531	572	623
		ξ (×10⁻³)	−17	32	49	53	41	82	96	102
		Σ (kN·m)	31	30	29	28	29	27	25	24
		S_r (kN·m)	646	733	766	776	784	815	850	897
		S_r/S_d	1.54	1.57	1.50	1.39	1.30	1.25	1.22	1.21