Estimation of Secured Distance between Neighboring Buildings to Avoid Seismic Pounding


In this study, some seismic pounding analyses are performed on two neighboring buildings with different heights using a finite element code based on the adaptively shifted integration (ASI)-Gauss technique. Elastic limit distances of each building are estimated by applying various sine waves with different natural periods. Furthermore, a story drift angle of 1/100, which is an allowable plastic limit stated in the Building Standard Law, is added to each elastic limit distance to estimate the secured distance between the buildings. The secured distance between 8-story and 12-story steel frame buildings, for example, became 1,150 mm by summing both elastic and plastic limit distances. The numerical results clearly showed the effect of the secured distance compared to those of shorter distances.

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