AISI S100 · AISC 360 · AISC DG39 · ASD

PE-Validated SteelDesign PlatformFor Structural Engineers

Three specialized calculation tools for structural steel design — cold-formed purlins, bolted end-plate connections, and I-section member checks. AISC and AISI code compliance, results ready for submission.

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AISI S100-16·ASCE 7-05·AISC 360-05·AISC 360-22·AISC DG39·ASD·G450 / G550

Three Specialized Tools

Each module covers a distinct design problem. All run PE-validated calculations server-side — the algorithm never reaches the browser.

01

Purlin Design

AISI S100-16 DSM · ASCE 7-05 ASD · Cold-Formed Steel

  • —C and Z cold-formed sections with multiple spans and lap splice configurations
  • —AISI S100-16 Direct Strength Method — flexure, shear, and minor axis checks
  • —8 ASCE 7-05 ASD load combinations with governing case auto-selected
  • —Moment diagrams, deflection profiles, unity checks, and exportable report
Open Tool
02

End-Plate Connection

AISC Design Guide 39 · AISC 360-22 ASD

  • —12 end-plate configurations — flush and extended, stiffened and unstiffened
  • —Yield-line analysis per AISC DG39 with bolt row force distribution
  • —Bolt tension and shear (A325 / A490 / 8.8 / 10.9), plate flexure, beam web checks
  • —Weld design and column flange capacity included
Open Tool
03

I-Section Checker

AISC 360-05 ASD · Chapters E · F · G · H

  • —Doubly and singly symmetric I-sections — rolled or built-up, independent flanges
  • —Full classification: Compact / Non-compact / Slender per AISC Table B4.1
  • —Axial compression (Ch. E), biaxial flexure with LTB (Ch. F), shear (Ch. G)
  • —Chapter H combined interaction — H1-1a and H1-1b with unity check
Open Tool

Built on Precision Engineering

Every module follows the same standard: PE-validated methodology, server-side execution, and code-referenced output.

01

PE-Validated Methodology

All three modules reviewed and validated by a Senior Professional Engineer. Results you can submit with confidence.

02

Server-Side Execution

Calculation engines run entirely in Node.js. The browser receives only numbers — no algorithm source is ever served to the client.

03

Multi-Standard Compliance

AISI S100-16, ASCE 7-05, AISC 360-05, AISC 360-22, and AISC Design Guide 39 — each module implements its code precisely.

04

Exportable Reports

Detailed calculation summaries with diagrams, unity checks, and governing case identification — ready to hand off or submit.

05

ASD Throughout

Allowable Strength Design across all modules. Consistent Ω factors per AISC 360 and AISI S100. No LRFD ambiguity.

06

Bilingual Interface

English and Thai language support on all public pages. Engineering terms remain in their standard English form.

From Input to Results in Seconds

01

Define the Problem

Select your module, input section geometry, material grade, and member configuration. Properties are computed instantly.

02

Set Loads & Parameters

Enter spans, load cases, unbraced lengths, or connection geometry depending on the module. Add point loads as needed.

03

Run & Review

Analysis runs server-side. Inspect diagrams, unity checks, governing cases, and export the full calculation report.

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