Field Test of Soil-Steel Corrugated Arch with Ribs and Three-Dimensional Analysis.

摘要

Flexible corrugated steel culverts have been used in engineering for many years, with the first applicationin 1931. Since that time, the popularity of these structures has increased enormously. Soil-steel bridgesare more and more popular in Europe in recent years.In 2008 two identical large-span flexible structures were constructed on A4 motorway in the vicinityof Boleslawiec city in Poland near the Polish-German border. The culverts are served as animal crossings.This paper describes full-scale field tests of one of mentioned structures during backfilling operations andthree-dimensional finite element analysis. A 75 m long tested structure is a low-profile metal arch with a spanof 19.5 m and a rise of 6.0 m. The animal crossing is a one of the biggest buried structure in Europe.The main goal of conducted full-scale filed tests was to evaluate the structure behaviour during backfillingin configuration of twin arches. Horizontal and vertical deflections at four strips along the structure andstrains in metal plates were measured. The instrumentations included strain gauges installed on the metalplates and a geodetic device to monitor deflections of the structure. The experimental results obtained duringmeasurements are shown in graphs/tables and it forms the basis for experimental evaluation of threedimensionalnumerical model.The research project is sponsored by The European Community under a Marie Curie European ReintegrationGrant and ViaCon Company in Poland.