TRI*TANK 650:
MECHANICAL DESIGN OF WELDED STEEL TANKS FOR OIL STORAGE

TRI*TANK650 is a comprehensive software package for the design and rating of welded steel oil storage tanks in accordance with API Standard 650, 8th and 9th Editions.

TRI*TANK650 APPLICATIONS

• Technical compliance and documentation for regulatory authorities
• Designs new tanks and rerates existing tanks
• Calculates shell plate thicknesses and weights
• Provides detailed tank drawings

TRI*TANK650 CAPABILITIES

• Calculates thickness using variable design point method, one-foot method, and the methods stated in Appendix A and F of the API Std. 650
• Provides option to use roof design guidelines from either API Std. 620 or API Std. 650 for conical, domed, and umbrella roofs
• Provides bottom options: sloped or flat
• Provides wind loading per ASCE 7-93, NBC of Canada, UBC, API Std. 650, or user defined loads
• Provides seismic loading per API Std. 650 or NBC of Canada
• Includes API Std. 650 Appendix M for design and rating of tanks up to 500° F
• Considers Internal pressure per API Std. 650
• Calculates uplift forces and moments for chair design
• Optimizes the number and size of anchor bolts required using built-in anchor bolt material properties
• Calculates minimum base plate thickness and width required while considering the foundation properties
• Calculates minimum wall thickness of nozzles
• Performs repad calculations in accordance with the API 650 and API 620 Standards
• Calculates cross sectional area required for roof compression rings and wind girders
• Provides ability to rerate or to design shell stiffening rings per API Std. 650
• Provides built-in API Std. 650 materials database which can be supplemented by the user for nonstandard materials
• Calculates MAWP and max. liquid height for each pressure bearing component when rerate option is selected
• Considers ladders, platforms, stairways, stiffening rings, and insulation in weight, wind, and seismic calculations
• Enables users to specify different heights for each course
• Calculates edge settlement per API 653, Appendix B
• Calculates column supported conical roof per AISC code

TRI*TANK650 OUTPUT

• Equations shown with variables defined and "plugged in" for engineering verification
• Summary page for each major set of calculations showing input and calculated values, such as shell design, wind loads, etc.
• Detailed tank drawings in Microstation format provided
• Output reports may be interactively reviewed or printed

TRI*TANK650 ADVANTAGES

• Alternative tank designs can easily be evaluated prior to fabrication
• Time required for tank design or rerate is greatly reduced
• Reliability of design calculations substantially improved
• Design procedure standardization achieved
• Reduction of drafting time to generate tank drawings
• Saves time in technical compliance and documentation for regulatory authorities