Insights

Working notes on the engineering, written to be useful whether or not you ever hire us. Every formula carries its clause and every catalogue value its table.

10 articles

Tekla steel model of the hub buildings.

Fabrication-ready steel models: what LOD 400 actually has to contain

LOD 400 is not a prettier LOD 300. It is the point at which a shop can cut, drill, weld and bolt from the model, and it depends on who…Steel structuresLOD 400Tekla Structures
A dense MEP zone in the federated model, with every service coloured by system.

Clash detection that survives site conditions

A model can report zero clashes and still produce conflicts on site, because the building is not built to the model's dimensions. What…BIM coordinationClash detectionBIM coordination
A bridge span being lifted into place.

Designing a lifting lug: AISC 360 or ASME BTH-1?

A padeye carries a whole member in a position nobody designed it for. The proportions AISC 360 requires before its equations apply, the…Steel structuresLifting designASME BTH-1
Isometric detail of four canopy beams framing into a column with bolted end-plate connections.

What a steel connection design handover should contain

Most connection disputes are not engineering disputes. They are handover disputes: the fabricator was given forces without the basis, or a…Steel structuresSteel connectionsAISC 360
Federated model of the data centre with every discipline loaded.

Coordinating a data centre in one federated model

Chilled water, air, two power paths and a room that must hold its fire-suppression agent, all converging on the white space. What the…BIM coordinationData centresMEP coordination
Architecture and structure isolated from the federated data centre model.

The Saudi energy code envelope, in practice

Which code applies to your building, how a U-value is actually calculated, the three routes to compliance, and why the number on the…LEED & green buildingEnergy codeSBC 601
Federated model of the hub with building services.

ISO 19650 file naming and status codes, field by field

The seven fields of an information container ID, who sets each code, what goes wrong with each, and why status and revision travel beside…BIM coordinationISO 19650File naming
Section diagram of passive cooling and daylight.

LEED v5 on a Saudi project: what to decide at concept

Half the points now serve decarbonization, three assessments open the rating system, and Platinum is a set of gates rather than a total…LEED & green buildingLEED v5Embodied carbon
Concrete pumping to the foundations.

Embodied carbon of the structure: the LEED v5 prerequisite in practice

Every LEED v5 BD+C project now has to quantify the cradle-to-gate carbon of its structure, enclosure and hardscape. What MRp2 and MRc2…LEED & green buildingEmbodied carbonLEED v5
The ministry building entrance in Riyadh.

LEED O+M for an existing building: certifying what it actually does

Operations and Maintenance certifies a building on twelve months of its own data. How the v4.1 performance score is built, why the metered…LEED & green buildingLEED O+MExisting buildings
Selected work

Built, modelled, delivered.