Study on Modal Dynamic Response and Hydrodynamic Added Mass of Water-Surrounded Hollow Bridge Pier with Pile Foundation

Table 7

HAM of the pier along the x-axis and y-axis in the three cases.

Water level (cm)	(kg)					(kg)
	Case I (1)	Case II (2)	(1) + (2)(3)	Case III (4)	(3)/(4)	Case I (5)	Case II (6)	(5) + (6)(7)	Case III (8)	(7)/(8)
80	4.57	0.66	5.23	5.22	1.00	2.68	0.40	3.08	3.080	1.00
90	14.23	4.06	18.29	18.30	1.00	7.71	3.17	10.88	10.881	1.00
100	25.44	7.82	33.26	33.258	1.00	13.51	6.83	20.34	20.343	1.00
110	36.55	11.58	48.13	48.12	1.00	19.28	10.57	29.85	29.853	1.00
120	47.46	15.32	62.78	62.78	1.00	24.93	14.32	39.25	39.250	1.00
130	56.51	18.48	74.99	75.01	1.00	29.60	17.47	47.07	47.085	1.00
140	67.20	22.22	89.42	89.45	1.00	35.09	21.21	56.30	56.315	1.00
150	77.83	25.99	103.82	103.83	1.00	40.51	24.98	65.49	65.488	1.00
160	88.45	29.73	118.18	118.19	1.00	45.90	28.72	74.62	74.618	1.00
170	99.05	33.48	132.53	132.53	1.00	51.25	32.47	83.72	83.719	1.00
180	107.53	36.47	144.00	144.01	1.00	55.51	35.47	90.98	90.981	1.00