The Forming of the Bridge Structure Founded on RC Piles and Solution for Seismic Strengthening a Middle Frame

Abstract

In this paper a brief review of construction of an overpass and possible methods and certain criteria of choice of seismic strengthening of the middle frame is presented. The calculation of the existing bridge-overpass using non-linear dynamic analysis (NDA) via time history (TH) while taking into account dynamic interactions between the foundations and soil is also given. In a soil-pile-structure system, the structure is modeled, including interaction effects, by using p-y curves for sand, as a link element, according to Reese model. The order of appearance of plastic hinges was analyzed.