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5. Preventing Bin Collapse
- 1. “PREVENTING BIN C0LLAPSE” Tom Nealey PE Warren Odekirk AG Facility Engineers PC
- 2. AGE -Steel /rust -Concrete/Cracks CONSTRUCTION -Design -Assembly -Alterations OPERATIONS -Loading -unloading Failure AG FACILITY ENGINEERS,PC
- 3. NEW CARLYLE, OH, JAN22,2018 WDTN News MELBOURNE, AUS DANVILLE, IA, 1921 AG FACILITY ENGINEERS,PC
- 4. WHICH IS MOST CLOSELY RELATED TO A GRAIN BIN? This Photo by Unknown Author is licensed under CC BY-SA AG FACILITY ENGINEERS,PC
- 5. 3.9” 30 GA 48’ DIA 1.44” THICK AG FACILITY ENGINEERS,PC
- 7. What are the loads? FLUID BULK SOLID COMPLICATED STRUCTURE AG FACILITY ENGINEERS,PC
- 8. CENTER DRAW UNLOADING AG FACILITY ENGINEERS,PC
- 9. ECCENTRIC UNLOADING AG FACILITY ENGINEERS,PC
- 10. Eccentric Unloading AG FACILITY ENGINEERS,PC
- 11. ECCENTRIC UNLOADING AG FACILITY ENGINEERS,PC
- 13. SIGNS OF ECCENTRIC UNLOADING OVER UNLOADING TUNNEL PATTERN ON BIN WALL AG FACILITY ENGINEERS,PC
- 16. HOW DOES A SIDE DRAW FLUME WORK?* GRAIN FILLS FROM TOP (LOWER WALL PRESSURE) MINIMIZES LOW PRESSURE AREA INCREASES VERTICAL STRENGTH AG FACILITY ENGINEERS,PC
- 17. AFTER GRAVITY UNLOADING THROUGH CENTER AG FACILITY ENGINEERS,PC
- 18. ABSENCE OF PRESSURE PULLS WALL INWARD AG FACILITY ENGINEERS,PC
- 20. ANCHOR FAILED TWO PASS SWEEP ALTERATION ISSUES DESIGN/CONSTRUCTION AG FACILITY ENGINEERS,PC
- 23. •BIN DISTORTION •RATCHETING EFFECT •SIZE OF LOAD ECCENTRIC LOADING* AG FACILITY ENGINEERS,PC
- 24. Large stress on anchors if: - Bin is not round - Incorrect diameter - Filled off center AG FACILITY ENGINEERS,PC
- 25. TWO UNLOAD POINTS* AG FACILITY ENGINEERS,PC
- 27. Flow Patterns MASS FLOW (FIFO) FUNNEL FLOW (LIFO) AG FACILITY ENGINEERS,PC
- 28. DEEP BINS GRAIN PRESSURE AG FACILITY ENGINEERS,PC
- 29. Horizontal reinforcing steel acts like a belt Shape the silo is wanting to become under load AG FACILITY ENGINEERS,PC
- 32. Door frame AG FACILITY ENGINEERS,PC
- 43. OPERATION CENTER FILL, CENTER UNLOAD PROPER AERATION AGE/WEAR STEEL THICKNESS DOOR FRAMES, OPENINGS CRUMBLING/CRACKING CONCRETE CONSTRUCTION ROOF LOADING ENGINEERED FOUNDATIONS NO OPENINGS ADDED AG FACILITY ENGINEERS,PC
- 44. Thank You AG FACILITY ENGINEERS,PC