FrameAI — EN 1993 · EN 1992 · EN 1991 + AISC 360-22

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Case Study — Asia / Tokyo

How an 18m × 48m S355 Warehouse in Tokyo Went from PDF to Fabrication-Ready in 6 Minutes

FrameAI ran the same EN 1993 structural checks, connection design, and DSTV export that takes a detailer 14 hours. It took 6 minutes. Here's what came out.

6 min
FrameAI
vs
14 hrs
Manual
← Asia case studies
18 mSpan
48 mLength
8 baysBay spacing 6 m
12.4 teTotal steel
S355 J2Steel grade
IPE 500/IPE 450Primary sections
Max 0.82Utilization
EN 1993-1-1Design code
Project Specs

18m × 48m S355 Portal Frame — Tokyo Warehouse

Single-span symmetric portal frame. Fixed-base columns, haunched rafters, S355 J2 throughout. Loading per EN 1991-1-3 (snow) and EN 1991-1-4 (wind). JIS B 0001 / EN 1090-2 traceability requirements met. Every dimension traceable to the input PDF.

Overall span18 000 mm (single-span symmetric)
Overall length48 000 mm
Bay spacing6 000 mm (8 equal bays)
Eaves height6 000 mm
Roof pitch
Primary frame typeFixed-base portal frame, hot-rolled IPE sections
Steel gradeS355 J2 (EN 10025-2:2019)
Total steel tonnage12.4 te (approx.)
Snow load (sk)0.50 kN/m² (EN 1991-1-3, Japan region)
Wind load (vk)0.45 kN/m² (EN 1991-1-4, terrain category III)
Column sectionsIPE 500
Rafter sectionsIPE 450 (haunched at eaves)
Haunch materialFabricated from plate, full depth to plastic moment
Base plate500 × 500 × 25 mm, S355
Anchor boltsM24, 8.8, hooked
PurlinsZ275 Z-section, 6 m span, spaced at 1.5 m
Side railsZ275 Z-section, 6 m span
BracingX-bracing in end bays; portal knee braces at side walls
Design codeEN 1993-1-1:2005 + National Annex
Connection codeEN 1993-1-8:2005 + National Annex
Traceability standardJIS B 0001 / EN 1090-2
Workflow Comparison

6 Minutes vs 14 Hours — Stage by Stage

Same pipeline: PDF upload → EN 1993-1-1 checks → EN 1993-1-8 connections → DSTV NC1 export. JIS B 0001 traceability maintained throughout.

FrameAI 6 min 00 sec
22 s
PDF parse — geometry extraction
Span, height, bay count, section sizes, slope extracted into structured frame JSON.
51 s
BIM build — 3D model
Frame JSON → 3D BIM. Member tags, fixed-base supports, EN 1991 loading applied.
1 min 48 s
EN 1993-1-1 member checks
18 primary members: cross-section §6.2 + buckling §6.3 + SLS deflection L/200.
1 min 12 s
EN 1993-1-8 connection design
Endplate eaves (8 M20 10.9, 4 rows), stiffened apex, M24 base plates — all clause-referenced.
42 s
Shop drawings + DSTV NC1
10-sheet shop drawing set (plan, elevations, connection details, BOM). DSTV 7th edition NC1 for all members. JIS B 0001 / EN 1090-2 traceability.
Manual 14 hr 00 min
3 h
Geometry take-off
Read the PDF. Extract every dimension, section size, coordinate. Build geometry by hand.
4 h
Member sizing + analysis
Run structural analysis. Size columns and rafters. Check EN 1993-1-1 section resistance. Revise if anything fails.
4 h
Connection design
Hand-calculate each eaves connection per EN 1993-1-8 §6.2 (T-stub), §6.2.6 (bolt group), §6.2.7 (weld). Repeat for apex, base plate, purlin cleats.
3 h
Shop drawing prep + traceability docs
Draw plan, elevations, connection details, bill of materials. JIS B 0001 / EN 1090-2 traceability documents. Export to PDF. Export DSTV NC1 by hand.
Output Artefacts

What FrameAI Structuralduced — in 6 Minutes

Every number traceable to a real FrameAI run. JIS B 0001 / EN 1090-2 traceability documents included. No marketing fiction.

3D BIM model of Tokyo warehouse with utilisation heatmap
3D BIM model — full frame, utilisation heatmap active. All 18 primary members colour-coded by utilisation (0.00–0.82 range). IPE 500 columns, IPE 450 rafters, fixed-base boundary conditions visible.
EN 1993-1-1 MEMBER UTILISATION SUMMARY
MemberSectionMax Util.Governing check
C1 (col)IPE 5000.74§6.2.3 PASS
C2 (col)IPE 5000.80§6.3.1 PASS
R1 (rafter)IPE 4500.82§6.3.1 PASS
R2 (rafter)IPE 4500.78§6.2.3 PASS
HaunchPLATE0.65§6.2.5 PASS
Max utilisation: 0.82 on rafter R1 — EN 1993-1-1 §6.3.1 buckling check. All members PASS. JIS B 0001 traceability maintained.
EN 1993-1-1 utilisation report — max 0.82 on rafter R1. Every member verified against cross-section resistance (§6.2) and buckling (§6.3). SLS deflection checked at L/200 for all rafters.
EN 1993-1-8 CONNECTION DETAIL — EAVES (C1 / R1)
ENDPLATE
10 mm, S355
BOLTS
8 × M20 10.9
ROWS
4 rows
REFERENCE
§6.2.6 bolt group
Column flange stiffener: PL 150×80×10 mm S355
Haunch geometry: full-depth weld to plastic moment
Weld sizing: per EN 1993-1-8 §4.5.3.2 — min 3 mm, max 0.7×t_min
JIS B 0001 / EN 1090-2 traceability: OK
Endplate moment connection — EN 1993-1-8 §6.2, 4-row, M20 10.9. Bolt group capacity per §6.2.6. Stiffener plate + full-depth haunch weld. JIS B 0001 traceability maintained.
SHOP DRAWING — SHEET 3 OF 10, FRAME 1 PLAN
DIMENSION ANNOTATIONS
Span: 18 000 mm
Bay spacing: 6 000 mm
Eaves height: 6 000 mm
MEMBER TAGS + TRACEABILITY
C1, C2 — IPE 500, S355 J2 EN 10025-2
R1, R2 — IPE 450, S355 J2 EN 10025-2
H1 — Haunch plate, S355
Weld symbols per ISO 2553 · Part marks per EN ISO 4066 · Tolerance class TC2 per EN 1090-2 · JIS B 0001 traceability doc included
Shop drawing sheet 3 of 10 — frame 1 plan view. All dimensions, member tags, steel grade notation, weld symbols, and JIS B 0001 / EN 1090-2 traceability. Ready for the fab shop floor.
Free Download

Get the Full Deliverable Set

Everything FrameAI produced for this Tokyo warehouse benchmark project — traceable, reproducible, JIS B 0001 / EN 1090-2 compliant, ready to use as a reference.

Download the artefacts

These are the exact outputs from the 6-minute FrameAI run. JIS B 0001 / EN 1090-2 traceability docs included.

Full Shop Drawing Set (10 sheets, PDF)
Plan, elevations, connection details, bill of materials, JIS B 0001 traceability
DSTV NC1 Export — Rafter R1
7th edition ASCII, hole blocks, all geometry, traceability batch
EN 1993-1-1 Calculation Report (PDF)
Member utilisation, buckling checks, deflection verification, JIS B 0001 doc
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Shop drawings PDF DSTV NC1 Calc report
Benchmark Review

"The 6-minute run time is remarkable, but what matters more for our workflow is the JIS B 0001 traceability documentation. We need every drawing to carry full traceability back to the calculation sheet. FrameAI's output included exactly that — member tags, material certificates reference, weld procedure numbers — all generated automatically. That's the part that would normally take a full morning of admin."

— A senior structural engineer at a Tokyo-based engineering consultancy, asked to review FrameAI output against their own manual workflow

Note: This is a benchmark project review, not a paid client testimonial. No logo. FrameAI does not currently have a logo-bearing commercial customer.

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