Experimental Study on Pounding between Structures during Damaging Earthquakes

Abstract:

Mutual pounding between structures during earthquakes may cause serious structural damage. The aim of this paper is to show the results of a shaking table experimental study focused on pounding between structures in series under several earthquake excitations. The experiments were performed using three tower models with different configurations and different gap distances between them. In the first stage of the study, one rigid tower was installed between two flexible structures, while later on, the flexible tower was located between two rigid structures. The results of the study show that pounding observed during damaging earthquakes might affect the behaviour of structures significantly. It was observed that the rigid towers are more influenced by pounding than the flexible structures. Moreover, the optimal gap size was found to be either the distance which prevents pounding (and therefore prevents from damage) or the zero gap.

• Periodical: Key Engineering Materials (Volume 627)
• Pages: 249-252
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.627.249
• Online since: September 2014
• Authors: Robert Jankowski*, Ayman Seleemah, Saher El-Khoriby, Hytham Elwardany
• Keywords: Earthquakes, Experiment, Series of Structures, Structural Pounding

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