Study on the Dynamic Response of Composite Box Girder Bridges with Corrugated Steel Webs

Table 1

Box beam natural frequencies calculated by different methods (unit: Hz).

Frequency order	Calculation method	Simply supported beam		2-Span continuous beam
		Composite box girder	Concrete box girder	Composite box girder	Concrete box girder
1	Analytical method	4.452	4.479	4.452	4.479
	ANSYS entity	4.396	4.397	4.484	4.491
2	Analytical method	14.637	15.899	6.305	6.506
	ANSYS entity	13.217	14.453	6.087	6.569
3	Analytical method	24.099	30.763	14.637	15.899
	ANSYS entity	20.204	22.075	13.513	14.883