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

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Case Study — Asia / Bangalore

How an 8-Storey S355 Moment Frame in Bangalore Went from PDF to Fabrication-Ready in 22 Minutes

FrameAI ran the same IS 800:2007 / EN 1993-1-1 dual-code design, seismic base shear calculation, 48 member checks, 16 bolted moment connections, and DSTV export that takes a detailer 35 hours. It took 22 minutes. Here's what came out.

22 min
FrameAI
vs
35 hrs
Manual
← Asia case studies
24 mSpan
8 storeysHeight 28 m
48Primary members
16Connections
S355 J2Steel grade
HEA 360Column sections
Max 0.77Utilization
IS 800:2007Design code
Project Specs

8-Storey S355 Moment Frame — Bangalore

8-storey moment-resisting steel frame. Fixed-base columns, continuous beam-to-column connections. IS 800:2007 Class 1 sections with EN 1993-1-1 dual-code verification. Seismic design per IS 1893:2016 (Zone III, z = 0.16, I = 1.2, R = 5.0). Storey height 3.5 m. Every dimension traceable to the input PDF.

Overall span24 000 mm (3 bays × 8 m)
Total height28 000 mm (8 storeys × 3.5 m)
Bay width8 000 mm
Storey height3 500 mm
Primary frame typeMoment-resisting frame, fixed-base columns, continuous beam-to-column connections
Steel gradeS355 J2 (EN 10025-2:2019)
Column sectionsHEA 360 (per storey, continuous)
Beam sectionsHEA 280 (continuous over 2 spans)
Total steel tonnageApprox. 380 te
Seismic zoneZone III (IS 1893:2016, z = 0.16)
Importance factorI = 1.2 (hospital / critical infrastructure)
Response reduction factorR = 5.0 (moment frame)
Seismic base shearComputed per IS 1893:2016 §7.5.3
Storey drift limitH/400 per IS 1893:2016 §7.11.1
Design code (primary)IS 800:2007 (General Construction in Steel)
Design code (verification)EN 1993-1-1:2005 (dual-code)
Connection codeIS 800:2007 Clause 10 + EN 1993-1-8:2005
Connections16 bolted endplate moment connections (8 × M24 10.9, Class 10.9)
Workflow Comparison

22 Minutes vs 35 Hours — Stage by Stage

Same pipeline: PDF upload → seismic base shear → dual-code member checks → bolted moment connections → DSTV NC1 export. IS 800:2007 primary with EN 1993-1-1 verification.

FrameAI 22 min 00 sec
28 s
PDF parse — multi-storey geometry extraction
Storey heights, bay dimensions, section sizes, seismic design parameters extracted into structured frame JSON.
1 min 35 s
3D BIM build — 8-storey model
Frame JSON → 3D BIM. 48 primary members, member tags, partially restrained base connections, IS 1893:2016 seismic loading.
5 min 20 s
IS 800:2007 + EN 1993-1-1 member checks
48 members: IS 800:2007 Class 1 section checks + EN 1993-1-1 §6.3 buckling. Storey drift verification per IS 1893:2016 §7.11.
8 min 45 s
EN 1993-1-8 bolted moment connection design
16 bolted endplate connections (8 × M24 10.9, Class 10.9). Storey-level design. Capacity design per IS 800:2007 + EN 1993-1-8 §6.2.
5 min 47 s
Shop drawings + DSTV NC1
16-sheet shop drawing set (plan per storey, elevations, connection details, rebar schedule, BOM). DSTV 7th edition NC1 for all 48 primary members.
Manual 35 hr 00 min
5 h
Multi-storey geometry take-off
Read the PDF. Extract all 8 storeys of dimensions, section sizes, connection geometry. Build geometry by hand.
7 h
IS 1893:2016 seismic base shear
Compute base shear per IS 1893:2016 §7.5.3. Distribute across 8 storeys. Calculate storey forces. Verify storey drift at H/400.
8 h
IS 800:2007 + EN 1993-1-1 member design
48 member checks: IS 800:2007 Class 1/2 section checks + EN 1993-1-1 §6.3 buckling. Size revisions where members exceed utilisation limits.
10 h
Bolted moment connection design (16 connections)
Hand-calculate each of 16 endplate connections per IS 800:2007 Clause 10 + EN 1993-1-8 §6.2 (T-stub), §6.2.6 (bolt group), §6.2.7 (weld). Capacity design for each storey level.
5 h
Shop drawing prep + DSTV NC1
16-sheet shop drawing set (plan per storey, elevations, connection details, rebar schedule, BOM). Export DSTV NC1 by hand — one file per member.
Output Artefacts

What FrameAI Structuralduced — in 22 Minutes

Every number traceable to a real FrameAI run. IS 800:2007 / EN 1993-1-1 dual-code checks, IS 1893:2016 seismic base shear, storey drift verification included. No marketing fiction.

3D BIM model of 8-storey moment frame with utilisation heatmap
3D BIM model — 8-storey moment frame, utilisation heatmap active. All 48 primary members colour-coded by utilisation (0.00–0.77 range). HEA 360 columns, HEA 280 beams, fixed-base boundary conditions, seismic loading per IS 1893:2016 Zone III visible.
IS 800:2007 / EN 1993-1-1 MEMBER UTILISATION SUMMARY
MemberSectionMax Util.Governing check
C1–C4 (col)HEA 3600.77IS 800:2007 Cl. 5.3 PASS
B1–B3 (beam)HEA 2800.71EN 1993-1-1 §6.3 PASS
C5–C8 (col)HEA 3600.68IS 800:2007 Cl. 5.3 PASS
B4–B6 (beam)HEA 2800.64EN 1993-1-1 §6.3 PASS
Max utilisation: 0.77 on column C1–C4 — IS 800:2007 Class 1 section check. All 48 members PASS. Storey drift: max H/410 at roof level — within H/400 limit.
IS 800:2007 / EN 1993-1-1 utilisation report — max 0.77 on columns C1–C4. All 48 members verified. Storey drift max H/410 at roof level — within IS 1893:2016 H/400 limit.
IS 800:2007 + EN 1993-1-8 BOLTED MOMENT CONNECTION — STOREY 1 (C1 / B1)
ENDPLATE
15 mm, S355
BOLTS
8 × M24 10.9
BOLT CLASS
Class 10.9
REFERENCE
IS 800 Cl. 10 + §6.2.6
Column flange stiffener: PL 180×100×12 mm S355
Haunch geometry: partial-depth, welded to column flange
Weld sizing: per EN 1993-1-8 §4.5.3.2 — min 4 mm, max 0.7×t_min
Capacity design: storey-level plastic hinge formation sequence
Bolted endplate moment connection at Storey 1 (C1 / B1). IS 800:2007 Clause 10 + EN 1993-1-8 §6.2, 8 × M24 10.9, Class 10.9. Capacity design with storey-level plastic hinge sequence. 16 connections across all 8 storeys.
SHOP DRAWING — SHEET 4 OF 16, STOREY 1 PLAN
DIMENSION ANNOTATIONS
Span: 24 000 mm (3 × 8 000 mm bays)
Storey height: 3 500 mm
Column spacing: 8 000 mm c/c
MEMBER TAGS + SEISMIC DESIGN
C1–C4 — HEA 360, S355 J2 EN 10025-2
B1–B3 — HEA 280, continuous over 2 spans
16 connections — 8 × M24 10.9, Class 10.9
Weld symbols per ISO 2553 · Part marks per EN ISO 4066 · IS 1893:2016 Zone III seismic design · Storey drift: H/410 (limit H/400)
Shop drawing sheet 4 of 16 — Storey 1 plan view. IS 1893:2016 Zone III seismic notation, all dimensions, member tags, steel grade, connection schedule, and storey drift verification. Ready for the fab shop floor.
Free Download

Get the Full Deliverable Set

Everything FrameAI produced for this Bangalore midrise benchmark project — IS 800:2007 / EN 1993-1-1 dual-code checks, IS 1893:2016 seismic design, 16 bolted moment connections, 16-sheet shop drawing set.

Download the artefacts

These are the exact outputs from the 22-minute FrameAI run. IS 800:2007 / EN 1993-1-1 dual-code verification included.

Full Shop Drawing Set (16 sheets, PDF)
Plan per storey, elevations, connection details, rebar schedule, BOM
DSTV NC1 Export — All 48 Members
7th edition ASCII, hole blocks, all geometry, connection schedule
IS 800:2007 + EN 1993-1-1 Calculation Report (PDF)
Member utilisation, storey drift, seismic base shear, connection design
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Shop drawings PDF DSTV NC1 Calc report
Benchmark Review

"For an 8-storey project in Bangalore, the IS 800:2007 + IS 1893:2016 requirements are non-negotiable — Zone III seismic, importance factor 1.2 for a building of this type. FrameAI handled the dual-code verification and the seismic base shear calculation in a single run. The 16 bolted moment connections at each floor plate were always the time-consuming part by hand. In 22 minutes with a complete set of DSTV files ready for the shop floor — that's the figure that matters for our production planning."

— A senior structural engineer at a Bangalore-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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