Bolt-hole layout on vertical vessel base plate is designed to align with which lines?

Bolt-hole layout on vertical vessel base plate is designed to align with which lines?

• A. The center lines of the vessel
• B. The edge of the base plate
• C. The seam line of the jacket
• D. The reinforcement pad outlines

Answer: (A)

The bolt-hole layout on the vertical vessel base plate is positioned to align with the vessel’s center lines. This keeps the base plate square to the vessel’s axis, ensuring symmetric load transfer into the foundation and correct overall orientation for the vessel (including nozzle alignment and interaction with the jacket). If you tried to align with the edge of the base plate or with jacket seams or reinforcement pad outlines, you’d risk an off-center load and misalignment of the vessel in the erected structure.

The bolt-hole layout on the vertical vessel base plate is positioned to align with the vessel’s center lines. This keeps the base plate square to the vessel’s axis, ensuring symmetric load transfer into the foundation and correct overall orientation for the vessel (including nozzle alignment and interaction with the jacket). If you tried to align with the edge of the base plate or with jacket seams or reinforcement pad outlines, you’d risk an off-center load and misalignment of the vessel in the erected structure.