Abstract
The subject of the paper is a battery of silos for rapeseed located in Oil Factory in Bodaczów. It consists of 24 cylindrical silos with capacity of 500 tons and 14 star-shaped chambers between them with a capacity of 100 tons each. The silos were supported on the supporting structure in the form of permeating ring beams and columns. The height of a single silo is 25 m, and the diameter about 6.0 m. Detailed macroscopic tests were performed on the battery of silos. Destructive and sclerometric in-situ quality tests and pull-off test were performed on the concrete, the degree of concrete carbonation was estimated. The position of the reinforcement in the concrete structure and the corrosion of the reinforcement steel were determined. Static and strength calculations were carried out. Based on the results the technical condition of the object was estimated as poor, locally due to the significant loss of concrete and structural reinforcement it was estimated as imminent failure. The article presents the results of these tests, describes the reasons for the poor technical condition of the structure and presents solutions to restore its functional efficiency. A comprehensive repair of the battery of silos is currently underway applying the proposed solutions.
Highlights
In the 60's and 70's of the last century, a large number of different types of reinforced concrete silos were built to store loose materials
Due to the problems associated with their technical condition, they are the subject of many expert opinions and scientific publications
1) On the basis of macroscopic evaluation, numerous tests carried out by the author's team and static and strength analysis, it was found that the technical condition of most silos in the area of damaged concrete structure and advanced corrosion of reinforcing steel is bad, and in areas of significant losses of structural reinforcement it is prefailure
Summary
In the 60's and 70's of the last century, a large number of different types of reinforced concrete silos were built to store loose materials. These objects are still very often in use. The subject of the article is a battery of rapeseed silos in Oil Factory in Bodaczów near Zamość, which has been in operation since the 1960s. The object was built in sliding technology. It changed the owner in 2011 and was subjected to a detailed. It is being renovated based on this diagnosis.
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