Steel design suite · IS 800 · IS 1893 · IS 18168

Code-compliant steel design at the speed of AI.

DesignDoct takes a steel structure from geometry and loads to a verified, clause-referenced design report — seismic load generation, frame analysis, member checks, connection detailing and condition assessment in one platform, built around Indian Standards.

Explore the modules See how it works

Every check cites its governing clause. Every run exports a PDF you can hand to a reviewer.

Analyse

Gravity, modal and FEM analysis of steel frames from a grid you draw or a drawing you upload.

Design

Beams, columns, braces and gusset plates checked and optimised against IS 800:2007.

Verify

Seismic capacity envelopes, utilisation ratios and unsafe-member flags across every load combination.

Report

A downloadable technical report with inputs, intermediate calculations and clause references.

Built on IS 800:2007 IS 1893:2016 IS 18168:2023 IS 875 (Pt 3) IS 456:2000 Roeder–Lehman
Engineer-led, AI-powered

Judgement stays with the engineer. The grind doesn't.

DesignDoct automates the parts of steel design that are deterministic and tedious — load generation, combination sweeps, capacity checks, section iteration — and shows its working at every step.

01

Deterministic where it matters

Code checks are implemented as explicit clause logic, not model guesswork. Every capacity, factor and interaction equation traces back to a printed clause you can look up.

02

AI where it saves hours

Vision models read structural drawings into grids and detect defects in field photographs. Language models turn a completed run into readable design narrative, not a wall of numbers.

03

Report-ready by default

Every module ends in a PDF: inputs, assumptions, diagrams, intermediate calculations and a verification summary — formatted for design review and record.

The suite

Four modules covering the steel design lifecycle.

From whole-building analysis down to a gusset plate weld — and back out to the condition of what's already standing.

Seismic design

Braced Frame Design

Concentrically braced frames (CBF) — end to end

Automates the full seismic design of 2D concentrically braced frames: lateral load generation, brace and frame verification, capacity-design envelopes and connection detailing.

  • Chevron and split-K configurations
  • IS 1893:2016 seismic loads — 5 zones, 3 soil types
  • Global, pre-buckling and post-buckling capacity envelopes
  • Roeder–Lehman gusset plate and weld design
  • Section optimiser with stiffness-redistribution checks
  • Frame, AFD, BMD and SFD diagrams + PDF report
IS 18168:2023IS 800:2007IS 1893:2016
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Building analysis

Steel Structural Design Analyzer

Whole-building gravity, seismic and wind workflow

A full analysis-and-design workflow for steel-framed buildings: define or extract the layout, assign sections, model the loads, then run gravity → modal → FEM → design checks.

  • AI layout extraction from drawings, or manual grid definition
  • Standard IS sections or custom built-up I-sections
  • Dead, live, wall UDL, point loads, moments, slab overrides
  • IS 1893:2016 seismic — zone, soil, lateral system, R factor
  • Optional IS 875 wind pressure and directional cases
  • Utilisation dashboard with unsafe-member flags + PDF export
IS 800:2007IS 1893:2016IS 875IS 456:2000
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Member design

Steel Design Assistant

Beam & column design with LTB and biaxial interaction

Element-level design for individual beams and columns — the fast path when you need one member checked and optimised rather than a whole frame analysed.

  • Beam design with lateral-torsional buckling
  • Column design with biaxial moment interaction
  • ISMB, ISWB and ISHB section libraries
  • Fe250 / Fe410 grades and configurable end conditions
  • Shear and bending evaluation with optimisation suggestions
IS 800:2007
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Assessment

Steel Condition Assessment

Vision-AI defect detection for steel structures

Upload site photographs of a steel frame, bridge, tower or tank and get a graded defect inventory with an engineering repair schedule — closing the loop from inspection back to design.

  • Corrosion, fatigue cracking, weld and connection defects
  • Ten-category steel defect taxonomy with severity grading
  • Steel frame, bridge, tower and tank structure types
  • Up to 10 images per assessment (JPG / PNG / WEBP)
  • Prioritised repair schedule and PDF inspection report
IS 800:2007
Open module Live
How it works

Four steps from geometry to a signed-off report.

The same shape across every module, so moving between element design and whole-building analysis costs you nothing in relearning.

1

Define

Enter geometry, materials and boundary conditions — or let the AI read your drawing.

2

Load

Dead, live and SIDL loads, plus code-generated seismic and wind cases.

3

Analyse & check

Analysis runs, then every member is verified against IS 800 across all combinations.

4

Optimise & report

Accept the optimiser's sections and export a clause-referenced PDF report.

Verification output

You see the numbers, not just a verdict.

A pass/fail is not a design. Every DesignDoct run exposes the demand, the capacity, the governing combination and the clause behind each check — so the result survives review.

  • Utilisation, member by member

    Demand-capacity ratios for every element, with unsafe members flagged before you export.

  • Diagrams that match the model

    Frame elevations, axial force, bending moment and shear force diagrams rendered as vectors.

  • Optimiser suggestions

    Lighter sections that still satisfy every check, with the stiffness consequences spelled out.

ModuleBraced Frame Design
Seismic zone / soilIV · Medium
Design base shear1 284 kN
Brace — ISA 150×150×120.86 ✓
Beam — ISMB 4500.71 ✓
Column — ISHB 3500.97 ⚠
Gusset (Roeder–Lehman)Adequate
Governing clauseIS 18168 · Cl. 8.4
Reportdesign-report.pdf
Standards & codes

Anchored to the codes you already design to.

Including IS 18168:2023, the current Indian standard for seismic design of steel structures — implemented as capacity-design envelopes rather than a checkbox.

IS 800:2007

General construction in steel

Section classification, member capacities, lateral-torsional buckling, biaxial interaction, shear and connection checks — the backbone of every module.

IS 1893:2016 · IS 875

Seismic & wind loading

Zone factors, soil-dependent response spectra, importance and response-reduction factors, period formulae, and directional wind pressure cases.

IS 18168:2023

Ductile steel design

Capacity-design envelopes for braced frames — global, pre-buckling and post-buckling — with compactness filtering and connection demand derived from brace capacity.

4
Design modules
5+
Indian Standards implemented
10
Steel defect categories
PDF
Report export on every run
Behind DesignDoct

Built by structural engineers and AI researchers.

The steel design suite is developed by academics working in steel and earthquake engineering, alongside applied AI researchers.

Prof. Robin Davis

Associate Professor
NIT Calicut

Prof. P. C. Ashwin Kumar

Assistant Professor
IIT Roorkee

Dr. Sujith Mangalathu

Adjunct Faculty
NIT Calicut

Prof. Dipti Ranjan Sahoo

Professor
IIT Delhi

Design your next steel frame on DesignDoct.

Pick a module and run a real design in your browser — no installation, no licence server, and a report at the end of it.

Start designing Talk to the team