Skip to content
Construction design knowledge hub · since 1997

Construction design — from answers to tools.

Where construction engineers get unstuck. From design codes to product usage and verification — instant answers built on 30 years of questions and answers.

Images, PDF, design files (.stm, .acu, dwg, dxf, …)

FAQ

Common sticking points. Select one and the AI answers right away.

More questions →

AI Q&A (instant) and the 30-year Q&A board — both are here.

One road — the structures Hangil IT software designs.

Road profile schematic — the structures Hangil IT software designsFrom left: a two-cell box culvert under the embankment (ACulvert), an inverted-T abutment, two piers on pile foundations, and the far abutment (AAbutPier, AFoundation). A three-span continuous girder bridge of 35, 40 and 35 m (ARcBridge, ARoad, ABeamDeck) sits on top, over a river channel with a water-level mark. Schematic, not to scale.35.00040.00035.000ARcBridge · ARoad · ABeamDeckACulvertAAbutPierAFoundationSchematic · not to scale · dimensions in m

Recent Q&A

Search real questions and answers, or see recent posts.

Open the full board →

Products

Hangil IT design software lives as sections under this roof.

View all →
  • 30years

    of structural design software · since 1997

  • 1,100+

    engineering firms

  • 65,484

    real design Q&A records

Chosen by 1,100+ engineering firms

30 years of structural design software. Results are checked against reference values before release.

About us

30 years of Q&A

Accumulated questions and answers stay. AI Q&A is added — the board remains.

Q&A board

Unified product manuals

How-to for every product in one place, with a path to human support.

Manuals