Steel Structure Technical Resource Center
Working reference materials, not marketing brochures: design guides, material specifications, inspection templates, capability references and the engineering case studies behind our longest spans. Built for engineers and buyers who specify our steel.
Documents That Shorten Your Procurement Cycle
Useful materials are supplied on request for technical review: material grades, connection assumptions, inspection templates and records behind representative long-span projects. The engineering team confirms the applicable revision for each project.

Why We Publish These Files
Because a steel structure is specified on documents, not on trust. The faster your engineers can check our numbers, the faster your project clears technical review — and the less guesswork remains in the contract.
What You Will Find
- Product specifications for H-beams, grid structures and pipe trusses, with real section properties and tolerances — not catalogue artwork.
- Design guides covering load calculation, connection design and seismic detailing, mapped to GB and international codes.
- Qualification and capability references: manufacturing qualification overview, production capacity, inspection templates and standards cross-reference notes used in technical review.
- Case studies with erection sequences, inspection records and the decisions that made each project work.
Reference documents carry issue dates, revision marks and a responsible engineer where available. If a version mismatch appears, report it and the project team can confirm the applicable revision before fabrication.
Reference control follows shop documentation logic: drawings and templates carry revision marks where supplied, and material or inspection records are matched to the relevant project package. If you receive two versions of the same resource, report it to our engineering team and confirm the applicable revision.
Four Collections, One Document Control System
Every file below is requested through a single channel — the request code in the resource table — so we can track what buyers actually use and keep the library aligned with real project needs.
Product Specifications
H-beam portal frames, bolted-sphere grids, welded-sphere grids, pipe trusses, box columns and cladding systems. Dimensioned general arrangements, section tables and fabrication tolerances under GB 50017 and the relevant product standards.
Design Guides
Load path and wind/snow calculation sheets, connection design handbooks and seismic detailing notes. Each guide states the code basis (GB 50009, GB 50011, AISC 360 or Eurocode) so engineers can check before they rely on it.
Qualifications & Capability Records
Overview of manufacturing qualifications, plant capacity, inspection categories and reference standards used during technical review. Public qualification details are linked separately rather than presented as an unsupported certificate bundle.
Case Studies
Engineering records of the 229 m coal shed, the Antarctic Ross Sea station and the 748 m covered bridge: structural system selection, erection method, NDT scope and the lessons that changed our procedures.
Available Resources & Request Codes
Click a request code to email our technical team, or copy the code into your inquiry. Files are delivered as email attachments within 24 hours on business days.
| Code | Resource | Format | Availability | Reference Standard |
|---|---|---|---|---|
| RC-01 | H-Section Portal Frame General Arrangement Template | DWG | On request | GB 50017 |
| RC-02 | Bolted-Sphere Grid Node Detail Library | DWG | On request | JG/T 10 |
| RC-03 | Material Grade Specification Sheet: Q235 / Q355 / Q420 / Q460 | On request | GB/T 700, GB/T 1591 | |
| RC-06 | Wind & Snow Load Calculation Guide (portal frames, grid roofs) | On request | GB 50009, ASCE 7-22 | |
| RC-07 | Connection Design Handbook: Moment, Splice, Bracing Details | On request | AISC 360, GB 50017 | |
| RC-08 | Coating & Corrosion Protection Specification (C3/C4) | On request | ISO 12944, ISO 8501-1 | |
| RC-09 | 229 m World-Record Coal Shed — Engineering Case Study | On request | GB 50017, GB 50011 | |
| RC-10 | Antarctic Ross Sea Station — Cold-Region Case Study | On request | Low-temperature steel control | |
| RC-11 | 748 m Covered Bridge — Case Study | On request | GB 50017, GB 50018 | |
| RC-12 | QC & NDT Report Template Pack (inspection sheets + logs) | PDF/XLS | On request | AWS D1.1, GB 50205, GB/T 11345 |
Templates and case studies are provided for engineering reference. Site-specific conditions — soil, wind exposure, local code amendments — always require a reviewed design before fabrication. Our engineers will confirm the applicable version of any standard at the time of your request.
When a reference document has a revision, the engineering team confirms the applicable version before sending it. If a standard is superseded between your request and delivery, we flag the change rather than silently forward an outdated file. Confidential drawings can be shared under a simple NDA template where appropriate, and project-specific documents can be prepared under confidentiality arrangements where the buyer requires it. For metric or regional variants — Chinese-language versions, imperial-unit alternatives, or a bilingual cover sheet for customs — mention the preference in your request. Large packages are delivered through a transfer link instead of email when attachment size is limited.
Instant Downloads — Design & Procurement Guides
Three practical guides written by our structural and project engineering teams. Download them directly — no request code needed. Each guide is a self-contained decision tool with tables, load envelopes and checklists you can take straight into your next design review.

Airport Roof & Long-Span Structure Design Guide
Structural systems compared by span and weight, wind/snow/thermal load envelopes for terminal roofs, material grade mapping (EN/GB/AISC), fire strategy, erection logistics and an owner's design checklist with benchmark references.
PDF · 7 pages · EN 1991 / GB 50009 / ISO 12944
Download PDF
EPC Steel Structure Procurement Checklist
Eight-phase gate process from package definition to handover — supplier pre-qualification, bid evaluation matrix, contract terms, NDT hold points, export packing and a 22-point master checklist for procurement managers.
PDF · 7 pages · GB 50205 / AWS D1.1 / Incoterms 2020
Download PDF
Prefabricated vs Cast-in-Place: Life-Cycle Cost Whitepaper
A five-component LCC framework comparing capital cost, schedule and financing, quality and rework, maintenance and end-of-life. Includes a 10,000 sqm logistics warehouse worked illustration and a decision framework.
PDF · 7 pages · ISO 15686-5 / LCC model
Download PDFGuides are provided for engineering reference and are updated as standards evolve. For a project-specific application — your span, your wind zone, your procurement schedule — request a free engineering walkthrough with the code of the guide you downloaded.
What Each Collection Contains
Product Specifications (RC-01, RC-02, RC-03). The H-section portal frame general arrangement shows grid layouts, column and rafter sections, bracing schemes and connection callouts at the detail level a fabricator works from — not a marketing render. The bolted-sphere grid node library covers hub, sleeve, bolt and conical head details for the node types we use on 30–120 m spans, with the tolerance notes that keep field fit-up smooth. The material grade sheet lists yield, tensile, elongation and impact values for Q235, Q355, Q420 and Q460, with the international equivalents so your engineer can approve substitutions without a translation exercise.
Design Guides (RC-06, RC-07). The wind and snow load guide walks a worked example per span class: basic wind pressure, exposure coefficient, internal pressure and the resulting uplift on roof sections, with the code clauses cited so the calculation can be audited line by line. The connection design handbook shows moment, splice and bracing details with bolt and weld design checks — the kind of reference a fabricator's detailer or the client's engineer reaches for when reviewing shop drawings.
Qualification and capability references. Public qualification pages describe the manufacturer’s licenses, plant capacity, inspection process and project experience. For specific tender attachments, ask what records can be supplied for the actual scope; unsupported certificate claims are not published.
Case Studies (RC-09, RC-10, RC-11). Each study covers the full engineering loop rather than a highlight reel: structural system selection and why it was chosen for the span and load, erection sequence with the jacking or sliding method used, the NDT scope applied, and the inspection records that closed out the project. The 229 m coal shed study details the beam-string prestressing procedure; the Antarctic study documents low-temperature material and welding control; the 748 m bridge study covers the erection sequencing that made the record span feasible.
Get the Right Document for the Right Stage
Four habits make the resource center productive, whether you are a structural engineer, a procurement manager or a developer's technical advisor.
Match the Resource to Your Project Stage
Concept: material spec sheets and load guides. Technical review: connection handbook and material/inspection references. Tender support: qualification overview and project-specific records where available. Execution: QC templates and erection references.
Request by Code with a One-Line Brief
Use the mailto link or email market@permanentsteelstructure.com with the resource code (for example "RC-06") and your project type and location. The one-line brief lets us attach the matching addenda — wind zone notes for load guides, coating environment notes for specifications — so you receive the version that applies to you, not the generic one.
Ask for an Engineering Walkthrough
Documents answer "what"; our engineers answer "how does this apply to my building". Every resource can be accompanied by a free walkthrough call: our design team will run through the load path for your span, the connection choices for your frame, or the inspection gates for your delivery.
Confidentiality on Request
Project-specific drawings, bills of quantities and internal guides are released under an NDA on application. Tell us what the document will be used for and we will route it through the signed confidentiality channel — standard practice for tender-stage and design-stage disclosures.
Can't Find What You Need? Ask Our Engineers.
If your project needs a document not listed here — a specific code version, a translated section, a custom design basis — the engineers who own these files can produce it. Describe the gap and we will close it within 24 hours.
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