CASE STUDY – Steel Structure Detailing for Developing an Offshore Oil Platform in Australia

Structural Engineering Design & Drafting | Structural Stress Analysis | Rapid Prototyping | Technical Documentation

Case Study Highlights

Steel Structure Detailing

The Client:

  • Industry:  Construction and Engineering Organization
  • Location:  NSW,Australia

The Objective:

  • Efficient fabrication and installation of steel structures for Development of Offshore Oil Platforms

The Challenges:

  • Every 5000 Pipe supports/Tray supports had its specific coordinates for its position in the main platform. We received the main structure, a TEKLA model from the client.
  • The major challenge was to work for TEKLA modelling of each pipe/tray supports as per the coordinates given in the drawings with zero error. Any error could directly affect the fabrication schedule of the client.
  • The other major challenge for us and the client was to maintain all welding and holes standards of the client into the Tekla model for offshore steel structure standards.
  • Maintaining the pace of deliverables with the revision drawings supplied by clients. The amount and frequency of receiving revised drawings were very high which were required to be submitted to the client on time.

The Solution:

  • Creation of layout drawings and structural steel detailing for pipe and tray supports, main stair towers. Chain guides, access platforms and subsea distribution units.

steel structure detailing
steel structure analysis

Technology / Software Used:

  • Tekla

The Solution:

  • The initial agreement was to work on single part drawings for each tray/pipe supports.
  • Consistent submission of performance part drawings of tray/pipe supports for 3 months client provided us with the main structure Tekla Model.
  • We worked on the Tekla modelling of pipe/tray supports incorporating it into the main Tekla model for given coordinates.
  • Simultaneously, we provided solutions through TEKLA modelling for stair towers, access platforms, chain guide, and subsea distribution unit.

Benefits:

  • The layout drawings showed the position of every single pipe/tray member, while it was useful in locating each tray/pipe supports.
  • The structural steel detailing helped fabricate, and install steel structures as per the design in a smooth streamlined fashion.

Accurate steel structural detailing allows efficient production planning and erecting of all steel structures. Tekla structural detailing has become popular and several steel structure erection projects outsource these services to gain the maximum benefits.

The construction on the hull of the offshore is nearly complete at the fabrication yard in Finland. Error-free structural steel detailing, part drawings and layout drawings had to be delivered to the client as required across the project duration of eleven months.

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