| Issue | Likely Cause | Solution | | :--- | :--- | :--- | | | Wind or vacuum loads exceed shell stiffness. | Add a Wind Girder (Intermediate or Top Angle) or increase shell thickness. | | Anchors Required | Seismic overturning moment is too high. | Increase tank diameter (if possible) or add anchor chairs. Check liquid level used for overturning resistance. | | Nozzle Fails | Reinforcement area insufficient. | Increase nozzle neck thickness, add a reinforcing pad (repad), or use a thickened insert plate. | | Annular Plate Fails | Stress at the shell-to-bottom joint too high. | Increase annular plate width or thickness. Check fillet weld size. |
What does your project involve?
| Issue | Likely Cause | Solution | | :--- | :--- | :--- | | | Wind or vacuum loads exceed shell stiffness. | Add a Wind Girder (Intermediate or Top Angle) or increase shell thickness. | | Anchors Required | Seismic overturning moment is too high. | Increase tank diameter (if possible) or add anchor chairs. Check liquid level used for overturning resistance. | | Nozzle Fails | Reinforcement area insufficient. | Increase nozzle neck thickness, add a reinforcing pad (repad), or use a thickened insert plate. | | Annular Plate Fails | Stress at the shell-to-bottom joint too high. | Increase annular plate width or thickness. Check fillet weld size. |
What does your project involve?