Determination of the dynamic response due to the collision of adjacent structures as a function of the variation of the shear wave velocity

Abstract

This article studies the coupled effect of the collision of adjacent buildings and the soil-structure interaction on the dynamic responses in terms of displacement and impact force. To illustrate the proposed procedure, an example of two 8-storey reinforced concrete buildings subjected to the 1941 el Centro earthquake was considered. The procedure consists in solving the dynamic equation of motion by Newmark's method using a program under matlab. The parameters of the soil-structure interaction are introduced by the impedance equations in the equation of motion. The analysis of the results obtained revealed that even if the two structures have identical characteristics, the variation of the shear wave speed completely changes their response in displacement and in impact force which can distort the dimensioning of the seismic joints.

Keywords

• pounding
• impact force
• soil structure interaction
• shear wave velocity