1 / 6

Manufacturing and Fabrication of Marine Heavy Structure Columns

Manufacturing and fabricating marine heavy structure columns require precision engineering, high-strength materials, and advanced welding techniques. Proper surface treatment, quality control, and installation ensure long-term durability in harsh marine conditions.<br>

pooja277
Download Presentation

Manufacturing and Fabrication of Marine Heavy Structure Columns

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Manufacturing and Fabrication of Marine Heavy Structure Columns Marine heavy structure columns are critical components used in offshore platforms, ports, shipyards, and marine bridges. Their manufacturing and fabrication require high-strength materials, advanced welding techniques, and corrosion-resistant coatings to withstand harsh marine environments. 1. Materials Used for Marine Structural Columns Marine heavy structure columns must endure high loads, seawater corrosion, and dynamic forces like waves and wind. Common materials include: ✅ Carbon Steel (Grade A, B, DH36, EH36) – High strength and durability✅ Stainless Steel (316L, 904L) – Excellent corrosion resistance✅ Aluminum Alloys (6061, 6082) – Lightweight and corrosion-resistant✅ Composite Materials (FRP, GFRP) – Used for lightweight applications✅ Concrete-Filled Steel Tubular Columns (CFST) – High load-bearing capacity

  2. 2. Manufacturing Process of Marine Heavy Structure Columns • Step 1: Design & Engineering • Structural analysis and load calculations • Finite Element Analysis (FEA) for stress testing • Compliance with marine safety standards (ISO, ASTM, ABS, DNV-GL) • Step 2: Material Preparation & Cutting • Selection of raw materials based on design specifications • Cutting using CNC plasma, laser, or water jet cutting machines • Beveling for welding preparation • Step 3: Welding & Fabrication • Welding Techniques Used:✅ Shielded Metal Arc Welding (SMAW) – For thick steel plates✅ Submerged Arc Welding (SAW) – For large structural columns✅ Gas Metal Arc Welding (GMAW/MIG) – High precision and speed✅ Tungsten Inert Gas (TIG) – For stainless steel components • Fabrication Techniques:✅ Rolling steel plates into cylindrical or rectangular sections✅ Assembling flange, stiffeners, and reinforcement plates✅ Temporary tack welding followed by full-strength welding

  3. 3. Surface Treatment & Coating Marine structural columns must be corrosion-resistant due to saltwater exposure. Surface treatments include: ✅ Shot Blasting – Removes rust and scales for better adhesion✅ Galvanization (Hot-Dip or Electroplating) – Adds a zinc coating✅ Epoxy Coating & Marine-Grade Paints – Protects against corrosion✅ Cathodic Protection (Sacrificial Anodes, ICCP) – Prevents rust formation • 4. Quality Control & Testing • Marine heavy structure columns must undergo rigorous testing before installation: • ✅ Non-Destructive Testing (NDT): • Ultrasonic Testing (UT) – Detects internal defects • Magnetic Particle Inspection (MPI) – Identifies surface cracks • Radiographic Testing (X-ray) – Checks weld integrity • ✅ Load Testing: • Axial compression and bending tests • Fatigue testing for long-term durability • ✅ Corrosion Resistance Testing: • Salt spray test for coatings • Accelerated weathering tests

  4. 5. Transportation & Installation • Heavy structure columns are modularly fabricated and transported via ships or barges • Installation techniques include:✅ Piling & Deep Foundation – Drilling into seabeds for stability✅ Bolt & Weld Connections – Ensuring rigid structural integrity✅ Crane Lifting & Positioning – Using marine cranes and jack-up vessels Conclusion Manufacturing and fabricating marine heavy structure columns require precision engineering, high-strength materials, and advanced welding techniques. Proper surface treatment, quality control, and installation ensure long-term durability in harsh marine conditions.

  5. MORE INFORMATION VISIT OUR WEBSITEhttps://asefsindia.com/index.html

More Related