Elias printed two pages from the PDF: Table 4.2 (Load Factors for Environmental Loads) and Figure 6.7 (Soil-Pile Interaction Curve). He walked into the boss’s office and laid them on the desk.
If you need the code for a project, buy it from API. If you need to understand the methodology , search OnePetro for "Comparison of API WSD and LRFD methodologies for offshore jackets."
The 2019 document clarifies the two-level seismic design approach:
stands for Recommended Practice for Planning, Designing, and Constructing Fixed Offshore Platforms—Load and Resistance Factor Design . Api Rp 2a-lrfd 2019 Pdf
Here are answers to common questions regarding this standard:
If you are looking to purchase the PDF, you can find the 2nd Edition on the Accuris Standards Store.
The document includes several annexes that provide additional guidance and information: Elias printed two pages from the PDF: Table 4
With the boss’s WSD method, the platform stood. Just barely. The graph showed a 22% probability of exceeding the ultimate limit state in a 100-year storm. That was within "industry norms," but the word norms tasted like ash.
Have you successfully navigated the transition from LRFD back to WSD with LRFD supplements? Let me know in the comments below.
The is the cornerstone recommended practice for the planning, design, and construction of fixed offshore steel platforms. Unlike the traditional Working Stress Design (WSD) approach, this document utilizes a reliability-based Load and Resistance Factor Design (LRFD) format. If you need to understand the methodology ,
API RP 2A-LRFD is a widely adopted industry standard for the design of fixed offshore platforms in the oil and gas industry. The document provides guidelines for the load and resistance factor design (LRFD) of fixed offshore platforms, including their foundations, superstructures, and other associated systems.
: Covers design, fabrication, transportation, installation, in-service inspection, and final decommissioning/removal. Where to Access or Purchase