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Steel pipe rack and process structures at an onshore plant

Specialist detailing

Pipe Rack Detailing & Shop Drawings

Modular and stick-built pipe racks modelled in Tekla and drawn for fabrication and erection: bents, longitudinal bracing, cable tray and equipment supports, with material take-off.

Pipe Racks Are Our Home Ground

Pipe racks carry the plant: process lines, utilities, cable trays and, often, air coolers and walkways. They are also repetitive in the best and worst ways. Hundreds of near-identical bents make numbering, phasing and revision control decisive, and a single change to a pipe support or tray level can ripple through every drawing.

PetroHill details pipe racks and pipe bridges for fabricators and EPC teams in a Tekla model that carries the whole structure: transverse bents, longitudinal struts and bracing, stringers, cable tray supports, ladders and platforms. Our senior team's experience includes structural steel pipe bridges and crossover structures on the Hail & Ghasha onshore facilities and pipe rack layouts on the Hawiyah NGL Recovery Project.

We set up assembly marks and phasing so that modular racks can be fabricated as transportable units and stick-built racks can be erected bay by bay, and we keep piping and electrical interfaces visible so the loads and support positions your engineers approved arrive on the shop floor unchanged.

Every rack package ends with a reconciled material take-off, because steel tonnage on a rack is where estimate and reality most often part company.

Scope & Deliverables

Rack scope

  • Transverse Bents and Portal Frames
  • Longitudinal Struts, Stringers and Bracing
  • Modular Rack Units with Transport and Lifting Steel
  • Cable Tray, Pipe Shoe and Guide Supports
  • Air-Cooler and Equipment Support Steel
  • Ladders, Platforms, Walkways and Handrails

Deliverables

  • Tekla Model with Bay and Module Phasing
  • Rack GA, Bent Elevations and Erection Drawings
  • Assembly and Single-Part Shop Drawings
  • Anchor Bolt Plans for Rack Foundations
  • Material Take-Off and Bolt Lists
  • NC / DSTV Files and IFC Exports Where Contracted

Standards & Specifications

Rack design, load cases and connection design remain with the engineer of record; we detail to the approved design and the project specification. Working to a standard is not a claim of certification.

The scope of work records the applicable standards and editions for each package. A reference to a standard does not imply design verification or certification.

How standards are applied
  • Client / EPC / asset owner

    Project specifications

    Client, EPC and Owner Standards and Project Specifications

  • AISC

    AISC 303

    Code of Standard Practice for Steel Buildings and Bridges

  • AISC

    AISC 360

    Specification for Structural Steel Buildings

  • CEN

    Eurocodes

    Eurocodes with the Applicable National Annex

  • AWS

    AWS D1.1

    Structural Welding Code — Steel

From Lahore, on your schedule

Working Your Hours

Lahore is UTC+5: one hour ahead of the UAE and two ahead of Saudi Arabia and Qatar, so we work your full business day.

  • UTC+5LahoreOur office (no daylight saving)
  • UTC+4UAE1 hour behind Lahore
  • UTC+3Saudi Arabia2 hours behind Lahore
  • UTC+3Qatar2 hours behind Lahore

How a Package Runs

Inputs, model, checks, drawings and revisions, with information gaps raised before work proceeds.

  1. 01

    Inputs

    Rack GA, design sections, pipe and tray loading plans and support schedules reviewed.

  2. 02

    Model

    Bents, bays and modules modelled with interface positions from piping and electrical.

  3. 03

    Checks

    Elevations, support positions and connections checked against the design and interfaces.

  4. 04

    Drawings

    Bent, erection and shop drawings issued with MTO and bolt lists.

  5. 05

    Revisions

    Support relocations and late piping changes tracked through every affected drawing.

Do you detail modular pipe racks?

Yes. We phase the model by module, add the lifting and transport steel your engineer specifies and keep the module interfaces visible on the erection drawings, so modules can be fabricated, shipped and set as units.

How do you handle piping and electrical interfaces?

We work from the approved support and loading information and, where available, the piping and electrical models. Clashes and missing support details are raised as queries; we do not move supports or change loads without the engineer's approval.

Can you provide a material take-off for the rack?

Yes. Every rack package includes a material take-off and bolt lists generated from the model and reconciled against the issued drawings.

How quickly will we receive a quote?

We reply to quote requests within 24 hours (GCC working day). Send drawings or a scope summary with the deliverables, standards and target dates you have; where inputs are incomplete we list the assumptions we priced and the questions to close.

Can we start with a small trial package?

Yes. Our pilot is one assembly or a 5–10 t package, at a fixed price, delivered in 5 working days from receipt of complete inputs. It lets you check our model, drawing standard and checking on your own project before committing a larger package. NDA on request.

Send Your Drawings

We reply within 24 hours (GCC working day). A scope summary is enough to start; NDA on request.

Technical services involvedOptional, tick any that apply

Describe the structures, the design inputs you have, the deliverables you need and your target schedule.

Technical details (optional)

For example Tekla Structures 2024, AutoCAD, native or IFC exchange.

For example 40 shop drawings or BBS for 12 foundations, plus the codes and standards that apply.

One file up to 8 MB (.pdf, .dwg, .dxf, .zip, .png, .jpg, .jpeg). Please do not attach confidential drawings here; project files are exchanged after first contact, under an NDA if required.

Only name, organisation, work email, service and scope summary are required. Your details are used to respond to this enquiry and prepare any quotation; see our Privacy Policy. Please do not send confidential drawings until an NDA or approved file exchange is agreed.

For Clients Only

Our project drawings are confidential. Full views, downloads and copies are available to clients only. Contact us to discuss samples relevant to your scope.

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