Seismic Performance of Offshore Piers under Wave Impact and Chloride Ion Corrosion Environment

Table 9

Comparison of lateral stiffness results.

Lateral stiffness (kN/m)	0 years	10 years	20 years	30 years	40 years	50 years
No wave	61241; −0%	60209; −1.7%	58411; −4.6%	57473; −6.2%	56046; −8.5%	54607; −10.8%
HXB-3	57600; −6.0%	54989; −10.2%	53301; −13.0%	52857; −13.7%	48791; −20.3%	47217; −22.9%
HXB-4	55277; −9.7%	54566; −10.9%	52304; −14.6%	50984; −16.8%	47717; −22.5%	Destruction
HXB-5	54766; −10.6%	53046; −13.4%	51944; −15.2%	47460; −22.5%	Destruction	Destruction

Note. The ratio is the value of the lateral stiffness of the damaged pier compared with that of the undamaged pier.