Archicad 19 — Eptar Reinforcement For

In vanilla AC19, that meant deleting the shell, rebuilding it, and crying over lost rebar. With Eptar? I simply dragged the shell’s node. The geometry updated, and Eptar’s “Smart Heal” engine kicked in. Within 12 seconds, the reinforcement recalculated—the stirrups rotated, the longitudinal bars shortened on one side, lengthened on the other. The cover remained intact.

Not a chaotic mess of red lines, but a perfect, adaptive lattice. The bottom rebar followed the tension curve like muscle fibers. The top rebar compressed along the arch’s spine. Where the twist happened, Eptar automatically inserted double-density stirrups—something I would have taken three days to model by hand. eptar reinforcement for archicad 19

It was 2015, and I had just upgraded my firm to ArchiCAD 19. The new curved stair tool was a dream, but the shell structures? A nightmare. In vanilla AC19, that meant deleting the shell,

The real test came on Monday. My client wanted to move a skylight 80 cm to the left. The geometry updated, and Eptar’s “Smart Heal” engine

Then, the arch lit up.

I selected my twisted shell. Instead of drawing each bar manually, I typed a rule: “Cover = 4cm. Diameter = 12mm. Spacing = 15cm. Direction = Follow Principal Stress.”