Stiffness of Corrugated Steel Plate on Buried in Surroundig Soil Us an Ecological Bridge Structure

Abstract

Shell deformation when backfilling soil‐steel structures of corrugated sheet is substantial and can be controlled using geodetic techniques. Typically, crown deflection is observed, which is subject to significant changes during the backfilling process. In the initial phase of the construction, the shell undergoes uplift followed by reduction. The paper analyses changes to the curvature radius as a function of the vertical displacement of the shell crown. A characteristic graph is thus created to assess the safety of the shell (and the structure) both during construction (as in the paper) and exploitation. The paper presents an algorithm of structure safety assessment based on shell deformation.

Behaviour of soil-steel composite structures during construction and service: a review

“…At the same time, CSP rises at the crown. Typically, the maximum upward deflection is observed once the backfill top surface reaches the level of the crown point [50]. Next, the top of the shell moves downward with increasing backfill height.…”

“…The forces acting on the shell and the resultant shell displacements change during backfilling. Extreme values of both strains and displacements are obtained once the backfill level reaches the crown [16,50,63,64].…”