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API RP 2A-WSD Document Information:
Title
Recommended Practice for Planning, Designing and Constructing Fixed Offshore Platforms - Working Stress Design
American Petroleum Institute
Publication Date:
Dec 1, 2000
Scope:
FOREWORD
This Recommended Practice for Planning, Designing, and
Constructing Fixed Offshore Platforms contains engineering design
principles and good practices that have evolved during the
development of offshore oil resources. Good practice is based on
good engineering; therefore, this recommended practice consists
essentially of good engineering recommendations. In no case is any
specific recommendation included which could not be accomplished by
presently available techniques and equipment. Consideration is
given in all cases to the safety of personnel, compliance with
existing regulations, and antipollution of water bodies.
Metric conversions of customary English units are provided
throughout the text of this publication in parentheses, e.g., 6 in.
(152 mm). Most of the converted values have been rounded for most
practical usefulness; however, precise conversions have been used
where safety and technical considerations dictate. In case of
dispute, the customary English values should govern.
Offshore technology is growing rapidly. In those areas where the
committee felt that adequate data were available, specific and
detailed recommendations are given. In other areas general
statements are used to indicate that consideration should be given
to those particular points. Designers are encouraged to utilize all
research advances available to them. As offshore knowledge
continues to grow, this recommended practice will be revised. It is
hoped that the general statements contained herein will gradually
be replaced by detailed recommendations.
Reference in this practice is made to the latest edition of the
AISC Specification for the Design, Fabrication and Erection of
Structural Steel for Buildings (see Section 2.5.1a). While the use
of latest edition of this specification is still endorsed, the use
of the new AISC Load & Resistance Factor Design (LRFD), First
Edition is specifically not recommended for design of offshore
platforms. The load and resistance factors in this new code are
based on calibration with building design practices and are
therefore not applicable to offshore platforms. Research work is
now in progress to incorporate the strength provisions of the new
AISC LRFD code into offshore design practices.
In this practice, reference is made to ANSI/AWS D1.1-2002
Structural Welding Code - Steel. While use of this edition is
endorsed, the primary intent is that the AWS code be followed for
the welding and fabrication of Fixed Offshore Platforms. Chapters
8, 9, and 10 of the AWS Code give guidance that may be relevant to
the design of Fixed Offshore Platforms. This Recommended Practice
makes specific reference to Chapter 9 and 10 for certain design
considerations. Where specific guidance is given in this API
document, as in Sections 4 and 5, this guidance should take
precedence.
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