Pre-Con AssistPre-Con Assist

Help

How Pre-Con Assist works, and how to enter each thing. Sign in or start a firm.

Reading the results

Depths, verdicts, anchor loads, splices and the report.

Pictures and videos. Sign in to see this topic's pictures and videos.

The answer on each card

For each wind zone, the depth that works and how:

STANDARD OK
Standard mullions at that depth.
HEAVY WALL
It needs heavy wall mullions at that depth.
STEEL REINFORCED
It needs steel reinforcing inside the mullion.
NO SYSTEM FITS
Nothing in the lines checked carries it: add a tie-back, go deeper, or ask Forgenux.

You get two answers: the shallowest depth with standard mullions, and the shallowest that works at all. The job totals at the top say the deepest any elevation needs.

The colours on the drawing

Every mullion is drawn in the colour of what the answer gives it in its wind zone, and the key under the drawing names the ones in use:

Grey
A standard mullion.
Gold
A heavy wall mullion. When the answer is heavy wall, every vertical in that zone is gold, not one.
Teal
A mullion with steel or aluminum reinforcing inside it.
Red
A mullion, horizontal or expansion vertical that does not work at the depths checked.
The pointer above the head
The governing mullion: the most heavily loaded one, the one that sets the depth.
Purple, marked EXPANSION
An expansion vertical: storefront over 12'-0" wide gets one at an existing line, each run 12'-0" or less. It is a lighter mullion of its own, checked on its own section under the same wind, never taken as the heavy wall or reinforced mullion beside it. One that does not work rules out that depth, and the answer goes to the next one. Where no section data is on file for it, it is not checked and marked CHECK.

Full results

Depth table
Every depth in the family, shallowest first: the result, the member, its deflection and bending against the limits, the horizontals, and what governs.
Anchor loads
Wind in and out at every anchor, per mullion and per foot of slab edge, and the dead load per span, allowable stress, for your structural engineer.
Pieces and splices
Where a tall mullion is spliced (at zero moment, above a tie-back where it can), drawn on the elevation with the moment up the mullion.
Head joint
The movement at the head and the joint or receptor it needs.
Shear blocks
Where the framing's shear block fastener is on file: the load at the worst horizontal end (wind and glass together) against the fastener's capacity, and how many it takes at each end. A CHECK: spacing, edge distance and the block are the delegated-design engineer's.
Checks
Everything to confirm: assumptions, near-limit passes, items the screen doesn't cover.

The report

Save job as PDF makes the Pre-Con Report: a summary page with every elevation, the findings, the criteria and assumptions, each elevation's results, anchor loads, glass and energy. Until Forgenux has checked the project, every page says DRAFT, NOT CHECKED.