Improved Finite Beam Element Method to Analyze the Natural Vibration of Steel-Concrete Composite Truss Beam

Table 1

Comparison of calculation results between the FBEM and ANSYS model (SCCTB-1).

	Computation methods	Natural frequencies (Hz)
		1st	2nd	3rd	4th	5th	6th
0.40		9.443	24.192	44.764	70.425	100.160	122.580
		9.313	24.049	44.384	68.993	96.811	126.960
		9.706	26.119	50.630	83.145	123.639	172.038
0.60		9.580	24.359	44.930	70.570	100.280	122.610
		9.480	24.274	44.629	69.225	97.022	127.146
		9.895	26.404	50.977	83.524	124.037	172.447
0.80		9.701	24.512	45.087	70.709	100.390	122.630
		9.628	24.482	44.861	69.448	97.227	127.329
		10.064	26.670	51.311	83.892	124.427	172.850
1.00		9.809	24.653	45.236	70.844	100.510	122.660
		9.760	24.676	45.083	69.665	97.428	127.508
		10.216	26.920	51.631	84.251	124.810	173.248
2.00		10.214	25.236	45.884	71.454	101.020	122.770
		10.257	25.484	46.056	70.653	98.362	128.356
		10.790	27.980	53.066	85.920	126.630	175.165
		9.206	5.633	3.629	2.350	1.577	1.087