![]() ![]() The preferred anchor bolts are cast-in-place headed anchors and two-part epoxy. Over time, this can lead to the bin sheets buckling. If a stiffener is too long for the repair, an amount of stiffener will overlap with the existing stiffener, rather than transferring load through the cross-section. Often, if the repair was completed without an engineering review, the repair may not be sufficient to resist the bin loading and lead to stiffener buckling, or worse, bin failure. If you have repaired corroded stiffeners, you still need to keep a very close eye on them. During your preseason inspection, make sure to examine interior stiffeners for any sign of corrosion. If you let it sit, the moisture in the grain eventually will lead to corrosion. It is common for some grain to collect around the walls of the bin. To help prevent corrosion at the base, emphasize complete cleanout of a bin after it has been emptied. A sign of severe corrosion is buckling of interior stiffeners. You may see it on the exterior of the bin, but it occurs more commonly inside.Ĭorrosion leads to deterioration of the steel. ![]() One of the main areas where corrosion will occur is at the base of the bin. When it comes to steel bins, the development of corrosion is one of the most important issues to monitor. When it comes to preseason grain elevator inspection, there are five key areas to address annually: steel bins, anchorage, concrete, guy wires to equipment, and structural steel members. This article is based on a webinar presented by Michael Blough, PE, project engineer, Clear Creek & Associates, Goshen, IN (57), held in late February as part of the Grain Elevator and Processing Society’s Online Exchange Conference. ![]()
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