Table 6.

The loading conditions.

Condition #	1	2	3	4	5	6	7	8	9
Load displacement (cm)	10	−10	10	−10	10	−10	20	−20	20
Condition #	10	11	12	13	14	15	16	17	18
Load displacement (cm)	−20	20	−20	30	−30	30	-30	30	−30
Condition #	19	20	21	22	23	24	25	26	27
Load displacement (cm)	40	−40	40	−40	40	−40	50	−50	50
Condition #	28	29	30	31	32	33	34	35	36
Load displacement (cm)	−50	50	−50	60	−60	60	−60	60	−60