Supply and Install Cooling Tower 3 and 4 Crawl Beam

AC 232

2026-03-19 09:00

Tender Closed on: 2026-03-24 11:00

Ethekwini Metropolitan Municipality

1 ME

Boilermaking, Fabrication and Engineering Services, Construction and Building Services, Construction and Building Supplies, Steel Structures

Durban, KwaZulu-Natal

Ethekwini Metropolitan Municipality

Ethekwini Metropolitan Municipality Tenders

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AC 232 - Supply And Install Cooling Tower 3 And 4 Crawl Beam

Category: General

Tenders

Enquiries Procuring Entity : UShaka Marine World


Tender Summary

Objectives

The primary objective of this tender is to procure a qualified service provider to supply, fabricate, deliver, install, test, and commission a maintenance lifting system and crawl beam structure for Cooling Towers 3 and 4 at uShaka Marine World. The system aims to facilitate the safe removal and installation of cooling tower motors and components, ensuring long-term operational integrity in a coastal/marine environment with enhanced corrosion protection.

Scope

The scope of work includes:

  • Engineering design of the lifting system and crawl beams
  • Structural steel fabrication
  • Supply of lifting equipment
  • Delivery to site
  • Installation and erection of structural components
  • Load testing and commissioning of the system
  • Provision of documentation and certification, including structural calculations, load analysis, shop drawings, anchor bolt calculations, foundation details, welding procedures, and coating specifications

Technical Requirements

The technical specifications for the lifting system and crawl beams are as follows:

  • Structural Crawl Beams:
    • Type: Universal Beam (UB)
    • Size: UB 305 × 165 × 40
    • Material: S355 Structural Steel
    • Finish: Hot dip galvanized
    • Load Capacity: Safe Working Load (SWL) 500 kg, minimum design load 750 kg
  • Vertical Structural Column:
    • Type: Circular Hollow Section (CHS)
    • Diameter: 200 mm
    • Wall Thickness: 12 mm
    • Material: S355 Steel
    • Height: 6 meters
    • Foundation: Anchored to reinforced concrete using chemical anchors
  • Jib Support Beam:
    • Type: Universal Beam (UB)
    • Size: UB 356 × 171 × 51
    • Length: 6 meters
    • Material: S355 Steel
  • Hoist: Must include emergency stop, overload protection, upper and lower limit switches, weatherproof electrical components.
  • Corrosion Protection: Hot dip galvanizing per ISO 1461 with minimum thickness of 100 microns, plus additional marine coating system with total thickness of 250–300 microns.
  • Safety Features: Structures shall be painted with safety yellow and black hazard striping.
  • Design Documentation: Structural calculations, load analysis, shop drawings, anchor bolt calculations, foundation details, welding procedures, coating specifications, all signed by a qualified structural engineer.
  • Installation: Fabrication, erection of a 20 m vertical column, installation of 6 m jib beam, alignment, and commissioning by certified riggers and qualified welders.
  • Testing & Commissioning: Load testing at 125% capacity (test load 625 kg), structural inspection, anchor pull-out testing, and certification.

Skills Requirements

The contractor must demonstrate:

  • Proven experience in rigging, lifting equipment, and structural steel fabrication
  • Capability to design and implement corrosion-resistant structures suitable for marine environments
  • Qualified personnel including certified riggers and welders
  • Ability to prepare detailed design documentation and safety plans
  • Experience in performing load testing, structural inspections, and certification processes
  • Compliance with safety standards and environmental conditions specific to coastal/marine settings
This summary is AI generated. Download the tender documents for all the information.

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