Build an IFC MEP Ductwork Routing Clash Coordinator

Detect geometric clashes between HVAC ductwork and structural elements using IfcOpenShell. Formulate collision mitigation offsets and generate standard BIM Collaboration Format coordination topics.

MEP BIM Coordination Specialist

Upload structural and mechanical IFC models into the coordination platform.

Execute automated geometric collision checks between IfcDuctSegment and IfcBeam entities.

Calculate minimal non-colliding lateral and vertical routing elevation adjustments.

Generate structured BCF-XML coordination issues assigned to the HVAC design team.

3D collision viewer displaying clashing elements in red, clash coordinates, clearance metrics, and BCF issue export options.

Use open-source multidisciplinary BIM coordination test models from the IfcClash test suite on GitHub. Starter examples below are synthetic. They are not downloaded records.

IfcOpenShell Leverages IfcOpenShell ifcclash and bcf modules to parse intersecting solids and author BCF coordination issues.

pydantic-ai, ifcopenshell, fastapi. Pydantic AI guarantees type safety and strict schema conformance when generating BCF issue records and routing offsets. Instruction model capable of analyzing geometric coordinate clashes and drafting technical resolution instructions.

Submit runnable source, pinned dependencies, setup commands, a working interface, example outputs, and a recorded end-to-end demo. Include tests and an action log.

Identifies intersections between mechanical duct segments and structural framing elements.

Computes vertical clearance requirements based on duct external cross-sectional dimensions.

Generates valid BCF-compliant issue payloads containing element GUIDs and viewpoints.

```json [ { "input": { "clash_id": "CLASH-MEP-STR-042", "duct_element": { "guid": "2Vw89a1Lb9FfW0e78c6V12", "system": "Supply Air", "elevation_center_mm": 3200, "height_mm": 400, "width_mm": 600 }, "beam_element": { "guid": "0Kx32b5Mc1HgV3d90a8B34", "soffit_elevation_mm": 3100, "depth_mm": 500 } }, "expected_output": { "clash_id": "CLASH-MEP-STR-042", "collision_detected": true, "overlap_distance_mm": 300, "resolution_proposal": { "recommended_action": "Lower duct elevation", "new_center_elevation_mm": 2850, "clearance_margin_mm": 50 }, "bcf_issue": { "topic_type": "Clash", "title": "Supply Air Duct Clashing with Structural Steel Beam", "priority": "Critical", "assigned_to": "HVAC_Lead_Engineer" } } }, { "input": { "clash_id": "CLASH-MEP-STR-088", "duct_element": { "guid": "1Aa11a1Lb9FfW0e78c6V99", "system": "Exhaust Air", "elevation_center_mm": 2700, "height_mm": 300, "width_mm": 400 }, "beam_element": { "guid": "3Zz99b5Mc1HgV3d90a8B11", "soffit_elevation_mm": 3200, "depth_mm": 450 } }, "expected_output": { "clash_id": "CLASH-MEP-STR-088", "collision_detected": false, "overlap_distance_mm": 0, "resolution_proposal": { "recommended_action": "Maintain current alignment", "new_center_elevation_mm": 2700, "clearance_margin_mm": 350 }, "bcf_issue": null } } ] ```

Routing changes are proposed advisory adjustments. Structural and ductwork re-routing must be approved by licensed consulting engineers. Use mock external writes. Require human review before any real deployment.