Table 5. Comparison of maximum pile...

Table 5.

Comparison of maximum pile moments (in prototype)

Model	Input acceleration amplitude (g)	Dynamic centrifuge test	Response spectrum analysis
		Dynamic centrifuge test	Input seismic wave: amplified acceleration at virtual fixed point location		Input seismic wave: amplified acceleration at ground surface location
		Moment: kN m	Moment: kN m	Difference: %	Moment: kN m	Difference: %
IA40	0·04	293·3	211·6	−28	277·0	−6
	0·12	907·4	572·3	−37	837·4	−8
	0·16	1404·6	1035·5	−26	1514·0	8
	0·18	1623·0	1190·1	−27	1759·1	8
	0·23	1767·8	1459·3	−17	2274·7	29
IA62	0·06	456·2	349·3	−23	428·3	−6
	0·12	1036·9	928·4	−10	1173·2	13
	0·18	1541·4	1434·1	−7	1795·1	16
	0·21	1852·3	1745·7	−6	2200·3	19
IA84	0·09	813·7	767·4	−6	974·6	20
	0·15	1441·5	1342·7	−7	1750·1	21
	0·17	1819·0	1531·9	−16	2132·4	17
	0·23	2296·5	1910·9	−17	2776·4	21

Model	Input acceleration amplitude (g)	Dynamic centrifuge test	Response spectrum analysis
		Dynamic centrifuge test	Input seismic wave: amplified acceleration at virtual fixed point location		Input seismic wave: amplified acceleration at ground surface location
		Moment: kN m	Moment: kN m	Difference: %	Moment: kN m	Difference: %
IA40	0·04	293·3	211·6	−28	277·0	−6
	0·12	907·4	572·3	−37	837·4	−8
	0·16	1404·6	1035·5	−26	1514·0	8
	0·18	1623·0	1190·1	−27	1759·1	8
	0·23	1767·8	1459·3	−17	2274·7	29
IA62	0·06	456·2	349·3	−23	428·3	−6
	0·12	1036·9	928·4	−10	1173·2	13
	0·18	1541·4	1434·1	−7	1795·1	16
	0·21	1852·3	1745·7	−6	2200·3	19
IA84	0·09	813·7	767·4	−6	974·6	20
	0·15	1441·5	1342·7	−7	1750·1	21
	0·17	1819·0	1531·9	−16	2132·4	17
	0·23	2296·5	1910·9	−17	2776·4	21