Simulation Analysis of Coupled Structural Vibration of Highway Railway Combined Bridge Induced by Overlapping Action of Vehicle and Train

Table 1

Peak value of dynamic response of different nodes under different working conditions.

Vehicle spacing			Condition 1	Condition 2	Condition 3	Condition 4	Condition 5	Maximum
Railway bridge deck	1	Peak of displacement	0.0661	0.1224	0.1181	0.1168	0.0619	0.1224
		Peak of speed	0.0521	0.1011	0.1039	0.1153	0.0573	0.1153
		Peak of acceleration	1.6284	2.8581	2.8634	2.8689	1.6337	2.8689
	3	Peak of displacement	0.0755	0.1423	0.1336	0.1305	0.0673	0.1423
		Peak of speed	0.0394	0.0772	0.0682	0.0726	0.0399	0.0772
		Peak of acceleration	1.4435	2.4093	2.4093	2.4605	1.4387	2.4605
	5	Peak of displacement	0.0739	0.1394	0.1873	0.2436	0.1218	0.2436
		Peak of speed	0.0371	0.0680	0.0847	0.1081	0.0539	0.1081
		Peak of acceleration	1.5249	2.6234	2.9719	3.7710	1.8573	3.771
Highway pavement	7	Peak of displacement	0.0660	0.1224	0.1180	0.1167	0.0618	0.1224
		Peak of speed	0.0522	0.1013	0.1035	0.1157	0.0574	0.1157
		Peak of acceleration	2.3848	3.9980	3.9849	3.9764	2.3543	3.998
	9	Peak of displacement	0.0755	0.1422	0.1335	0.1305	0.0673	0.1422
		Peak of speed	0.0392	0.0768	0.0665	0.0709	0.0387	0.0768
		Peak of acceleration	1.6280	2.7371	2.8650	2.9771	1.7559	2.9771
	11	Peak of displacement	0.0740	0.1394	0.1873	0.2436	0.1218	0.2436
		Peak of speed	0.0377	0.0673	0.0831	0.1063	0.0528	0.1063
		Peak of acceleration	1.5605	2.6211	2.8646	3.5076	1.7901	3.5076
Peak value of reaction force at the bottom of pier 2 (kN)			1004.48	2008.47	1966.33	1933.15	966.623	2008.47
Peak value of reaction force of 4611 node (kN)			2.412	5.043	10.666	14.832	8.461	14.832

Note 1: in the table, the unit of peak displacement is mm, the unit of peak speed is m/s, and the unit of peak acceleration is m/s².