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May 2005

Process Industry Practices Structural

PIP STE03020 Guidelines for Tank Foundation Designs

Copyright Process Industry Practices Provided by IHS under license with PIP No reproduction or networking permitted without license from IHS

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Licensee=Bechtel Corp Loc 1-19/9999056100 Not for Resale, 08/09/2006 12:30:20 MDT

PURPOSEAND USE OF PROCESS INDUSTRY PRACTICES In an effort to minimize the cost of process industry facilities, this Practice has been prepared from the technical requirements in the existing standards of major industrial users, contractors, or standards organizations. By harmonizing these technical requirements into a single set of Practices, administrative, application, and engineering costs to both thepurchaser and the manufacturer should be reduced. While this Practice is expected to incorporate the majority of requirements of most users, individual applications may involve requirements that will be appended to and take precedence over this Practice. Determinations concerning fitness for purpose and particular matters or application of the Practice to particular project or engineeringsituations should not be made solely on information contained in these materials. The use of trade names from time to time should not be viewed as an expression of preference but rather recognized as normal usage in the trade. Other brands having the same specifications are equally correct and may be substituted for those named. All Practices or guidelines are intended to be consistent with applicablelaws and regulations including OSHA requirements. To the extent these Practices or guidelines should conflict with OSHA or other applicable laws or regulations, such laws or regulations must be followed. Consult an appropriate professional before applying or acting on any material contained in or suggested by the Practice.

This Practice is subject to revision at any time by the responsibleFunction Team and will be reviewed every 5 years. This Practice will be revised, reaffirmed, or withdrawn. Information on whether this Practice has been revised may be found at www.pip.org.

O Process Industry Practices (PIP), Construction Industry Institute, The University of Texas at Austin, 3925 West Braker Lane (R4500), Austin, Texas 78759. PIP member companies and subscribers may copy thisPractice for their internal use. Changes, overlays, addenda, or modifications of any kind are not permitted within any PIP Practice without the express written authorization of PIP.

PIP will not consider requests for interpretations (inquiries) for this Practice.

Not printed with Stute finds

Copyright Process Industry Practices Provided by IHS under license with PIP No reproduction ornetworking permitted without license from IHS

Licensee=Bechtel Corp Loc 1-19/9999056100 Not for Resale, 08/09/2006 12:30:20 MDT

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May 2005

Process Industry Practices Structural

PIP STE03020 Guidelines for Tank Foundation Designs
Table of Contents 1. Introduction ..................................
1.1 Purpose............................................. 1.2 Scope .................................................

2
2 2

6. Special Design Considerations 21
6.1 6.2 6.3 6.4 6.5 6.6 6.7 API 650 Tolerances ......................... 21 Bottom Support Pad ........................ 22 Hot Tanks ........................................ 24 Small Tanks ..................................... 31 Berms and Gutters .......................... 33Grounding and Cathodic Protection. 33 Secondary Containment and Leak Detection Systems ........................... 33 6.8 Tank Settlement .............................. 35

2 . References....................................

2

2.1 Process Industry Practices ................ 2 2.2 Industry Codes and Standards .......... 2 2.3 Other References .............................. 3

3....