Scheme analysis of the structure founded on the piles in soil-steel bridge

Abstract: In soil-steel bridges usually the massive concrete foundation is being applied. When the structure is mounted in the gutter, the static models defined as non-sliding joint arch. In a few cases only, the corrugated steel structures are founded on a flexible foundation. The examples of such objects executed in Poland were described in this article. The flexible foundation of the steel structure helps to form a natural vault in the backfill. The shape of the structure, similar to parabolic arch, is relevant in this case. The essential case being analyzed here, is the structure founded on the piles made of steel pipes. It is characterized by variable static scheme resulting from the level of connection. The displacement scheme was established using the results of geodetic measurements performed on the constructed bridge. On this basis, the range of changes in the uplift of the structure during backfilling, was estimated in the structure model. Keywords: Soil-steel bridges; Flexible foundation; Static scheme; Investigation