For Lead Structural & MEP Engineers · Principals · Calculation Leads

Your verifications, certified.

You carry decennial liability on every signed calc note. A workforce drives your certified software — Robot, ETABS, SAP2000 — through 1,847 element verifications in parallel. The permit-ready note is assembled. You focus on the judgement calls.

An engineer's workstation: hand-annotated calc note and Eurocode codex on the left, Vonbuild's Robot-driven certified output on the right

Left — the verifications you do by hand · Right — the Eurocode lineage Vonbuild ships

Today vs tomorrow

Friday emergency today. Saturday morning routine tomorrow.

Today

The weekend's gone.

Architect emails 9pm Friday — revised loads on the 12th floor. Weekend gone. Saturday re-running Robot. Sunday writing up the calc note. Monday 8am submitting tired, with two clauses you didn't have time to verify properly. Your senior partner reviews it Tuesday and finds the gap.
Decennial liability for the building stays with the firm — and with the partner who signed.
With Vonbuild

Sunday is yours.

Same Friday 9pm. The agent ingests the revised loads, spawns 312 workers per affected element, drives Robot overnight. Saturday 7am — updated calc note on your screen with every clause verified, every utilisation cited, every model file hash preserved. You review, sign, ship by lunch. Sunday off.
Decennial liability defended at every level. Reproducible decades later.
The cross-functional superpower

A load change isn't just a calc. It's a procurement shift and a contract notification.

A revised load doesn't only change the structural calculation. It rewrites the material spec, opens a contractual amendment window, and shifts the procurement category strategy. Three Masters. One coherent response. One Saturday morning.
01
Master Engineering

Drives Robot through every affected element.

312 affected elements identified. 312 workers spawn. Each opens Robot, runs the EC2/EC3 verification under the new loads, extracts utilisation, cites the exact sub-clause. Three columns flagged for resize. Saturday 6am, no input from you.
02
Master Procurement

Looks up the steel category strategy.

Three columns now need S355 instead of S235. Procurement flags: the steel order goes out in 10 days. Three suppliers need re-consulting on the upgraded grade. Cost delta: +€18,400 across the lot. Saturday 7am, in your folder.
03
Master Legal

Drafts the contractual notification.

Legal verifies whether the load revision opens an amendment under the firm's contract with the developer. Yes — CCAG Art. 9.2 triggered. 15-day window. Notification letter drafted, with cost quantum from Procurement and technical justification from Engineering. One letter. Three Masters' work. Your signature.
Result · 6 hours across 3 Masters
vs. a lost weekend + 2 days of coordination

A coherent package. One screen. Saturday lunch.

Updated calc note + procurement impact + contractual notification draft. You hand the architect, the project manager, and the firm's commercial lead a single coherent package. The firm's liability stays clean, the project stays on budget, and your weekend stays yours.

Live process · Engineering cascade

You consult Engineering. Five agents react. One verified design.

A revised structural drawing arrives. Master Engineering spawns five verification agents in parallel. Eurocode, DTU, deflection, materials, tolerance — all cross-checked, one verdict. Norm-update re-verification auto-scheduled.

Signal

A revised drawing arrives at 14:32.

Any source can fire it: a file dropped in OneDrive / Google Drive / any drive, an email landing in Outlook, a scheduled task firing, or you pressing a button. In this scenario, an event arrives via ONEDRIVE.

Source: ONEDRIVE · drawing-rev-D-structural.dwg
Routing

MASTER ENGINEERING routes.

It classifies the impact across 21 semantic categories and dispatches to the 5 specialized agents concerned. No human in the loop. No meeting scheduled.

5 specialized agents dispatched · 312 ms
Parallel reaction

5 specialized agents. In parallel.

Each agent accesses its own toolset — apps, browsers, MCP connectors, project documents and company knowledge — and produces a structured output. Concurrently, not sequentially.

AGENT
Calc Runner
EC3 ✓
beam check passed
AGENT
Standard Verifier
DTU 39 §4.2
compliance confirmed
AGENT
Drawing Analyzer
δ 12mm
deflection within tolerance
AGENT
Material Spec Checker
S420 OK
yield strength verified
AGENT
Tolerance Auditor
±2mm
dimensional tolerance met
5 outputs produced
Convergence

Outputs return. One narrative.

The 5 specialized agents return their outputs to MASTER ENGINEERING. It reconciles them into a single decision card.

1 reconciled decision
Validation

Handed to you. One click.

Master Engineering returns the verification. Calcs run, standards confirmed, deflection within tolerance, materials verified, dimensions OK. Full evidence chain. One trace ID. Drawing stamped, ready to issue.

3 min · signal → decision
Self-scheduled trigger

T+30 DAYS LATER. The system wakes itself up.

During the parallel phase, a agent scheduled a follow-up task on its own. T+30 DAYS LATER — without you, without a meeting, without a reminder email — MASTER ENGINEERING wakes itself, dispatches the right agent, and executes autonomously. You delegated the mental load.

T+3minT+30 DAYS LATER · auto-fired
Auto-fired · 0 human intervention
Admissible · Provable · Defensible

Your signature still holds.

Decennial liability isn't going away. Four guarantees that the regulator, the insurer, and your senior partner can all accept.
Guarantee 1 · Computer Use, not generation

The certified tool produces the number.

The agent doesn't generate calculations. It opens Robot, ETABS, or SAP2000 in its own browser session and runs the verification there. The professional tool produces the result. The agent extracts and cites it. Same regulatory standing as if your engineer had clicked through manually.
Guarantee 2 · Every result cited

Source clause on every line.

Every utilisation, every verification, every reinforcement decision is tied to the exact Eurocode sub-clause that justifies the method. No probabilistic outputs. No "the AI thinks this is fine". A defensible audit trail per element.
Guarantee 3 · Reproducible audit

Re-runnable years later.

Per element: inputs · model file hash · software version · output. When the building's failure appears in year 7, your firm walks into the dispute with every verification re-runnable in the same software. The decennial defence is built into every project, not assembled in panic when the claim arrives.
Guarantee 4 · Your stamp stays your stamp

Senior engineer signs the work.

Your PE / IngBau / SIA-registered engineer signs the same note they would have signed otherwise. The regulator sees the same artefact. The insurer sees the same artefact. The architect sees the same artefact. The agent never carries the signature — it prepares the work, you certify it.
Live demo · Guarantee 4 in motion

This is what "you sign the calc note" looks like.

1,847 elements verified by certified Robot runs. Every result cited to its Eurocode sub-clause. Then the modal blocks. Your PE / IngBau / SIA stamp is the only thing that ships it. The agent prepares; your signature carries the decennial.
Works where you work

Your software licences. Your model files. Your firm.

Vonbuild doesn't replace Robot, ETABS, or SAP2000. It operates them with your firm's licences and your authenticated session. No migration, no new UI, no separate calculation engine.
Drives your professional stack
Robot StructuralETABSSAP2000Revit 2027 (native MCP)IDEA StatiCaSCIA EngineerSharePointOutlook (web)Plus any software with MCP
No new UI
Your team opens the same project file. The agent has populated it.
Your licences stay yours
Robot, ETABS, SAP2000 — the agent operates them with your firm's authenticated session.
Tabular in Vonbuild
Note assembly, tabular calculations, summary matrices in Vonbuild's built-in editor.
For your principal conversation

How to justify Vonbuild to the firm.

Don't tell your principal you bought an AI tool. Tell them you bought capacity and liability defence. Three bullets, ready for the partners' meeting.
Bullet 1 · Senior IP capture
methods stay

"When a senior leaves, their methods stay in the firm's Marketplace."

Auto-coded mini-apps capture the verification protocols, normative scripts, and review checklists your seniors have built over careers. Versioned, audited, available to every engineer. Knowledge that used to walk out the door stays.
Bullet 2 · Junior productivity
Week 1
to senior quality

"Junior calc notes reach senior quality from week one."

Junior engineers operate within the firm's encoded review protocols and approved verification methods from day one. Senior bottleneck reduced. Junior ramp accelerated. The firm absorbs more complex work with the same headcount.
Bullet 3 · Liability defence
10+ yr
reproducible

"Decennial defence built into every calc note."

Calculation lineage re-runnable years after Practical Completion. When the dispute arrives, the firm walks in with every input traced, every verification reproducible. The kind of defence that's hard to price upfront — but easy to value when an insurer raises the renewal.
Industry benchmarks (Monograph 2025, Part3 2025) compressed by the workforce model. Calibrated to your firm in the demo.

Start with the calc note you've been pushing back.

The 200-page permit note nobody wants to assemble. The seismic retrofit feasibility you've been putting off. The verification that's been on your TODO for two weeks. Drop it in. See the output Saturday morning.