Evaluation of Seismic Performance and Soil-Structure Interaction (SSI) for Piloti-Type Buildings considering Korean Geotechnical Conditions

Table 4

Comparison of fundamental transverse natural frequencies between the full and lumped mass models (unit: Hz).

	EW direction		NS direction
Mode	Full	Lumped mass	Full	Lumped mass
1^st	8.232	8.231	10.910	12.404
2^nd	24.237	24.235	29.055	25.417