Structural Optimization Design of Ship Lock Heads on Soft Soil considering Time-Varying Effects of the Structure and Foundation

Table 1

Range of design variables.

Design variable	Lower limits (m)	Upper limits (m)	Initial values (m)	Optimum values (m)
x1	3.29	4.59	4.59	4.3
x2	0.69	1.29	1.29	0.69
x3	0.06	0.24	0.24	0.102
x4	3.71	3.91	3.71	3.91
x5	0.06	0.71	0.71	0.506
x6	0.06	0.69	0.69	0.6
x7	−1.31	−0.51	−0.51	−0.78
x8	17.92	18.19	17.92	18.139
x9	0.165	0.19	0.165	0.19
x10	3.75	3.89	3.75	3.89
x11	3.79	3.9	3.79	3.88
x12	22.9	23.39	22.9	23.39
x13	0.06	0.69	0.69	0.69
x14	23.29	23.49	23.29	23.30
x15	0.06	0.39	0.39	0.37
y1	0.06	0.69	0.69	0.456
y2	0.06	0.59	0.59	0.201
y3	0.49	0.89	0.89	0.506
y4	0.06	1.81	1.81	0.348
y5	0.11	1.16	1.16	0.152
y6	11.59	11.9	11.9	11.6
y7	0.06	1.51	1.51	0.605
y8	0.06	0.69	0.69	0.62
y9	0.06	0.61	0.61	0.45
y10	0.39	0.49	0.49	0.42
y11	0.06	0.71	0.71	0.6
y12	0.06	1.89	1.89	1.15
z1	0.06	1.60	1.60	0.3
z2	0.06	0.29	0.29	0.06
z3	0.06	0.23	0.23	0.06
z4	0.43	1.02	1.02	0.49
z5	0.06	0.52	0.52	0.3
z6	0.06	0.31	0.31	0.07
z7	0.06	0.57	0.57	0.06