SEISMIC POUNDING BETWEEN ADJACENT BUILDING STRUCTURES SUBJECTED TO NEAR FIELD GROUND MOTION

Chetan J. Chitte, Anand S. Jadhav, Hemraj R. Kumavat

Abstract: The pounding of adjacent structures during earthquakes has been receiving considerable attention in recent years. This is because adjacent structures with inadequate clear spacing between them have suffered considerable structural and nonstructural damage as a result of their collision during major earthquakes. The different dynamic characteristics of adjacent buildings make them vibrate out of phase, and pounding occurs if there is a lack of sufficient space between them. Pounding between closely spaced building structures can be a serious hazard in seismically active areas. Past seismic codes did not give definite guidelines to preclude pounding, because of this and due to economic considerations including maximum land usage requirements, especially in the high density populated areas of cities, there are many buildings worldwide which are already built in contact or extremely close to another that could suffer pounding damage in future earthquakes. The highly congested building system in many metropolitan cities constitutes a major concern for seismic pounding damage

Keywords: Pounding, Major earthquakes, Dynamic characteristics.

DOI: https://doi.org/10.15623/ijret.2014.0321013