Steel Project Case Study Gallery: Renovation to ROM [page1], Toronto, Daniel Libeskind

Project Images: ... how do we get from the napkin sketch to the real thing???

Varying versions of the crystal are modelled by the architects, until approvals are reached.

A complex colour cutaway model is on display at the ROM in the exhibit depicting the architectural project.

The crystals are conceived in 3-D. Traditional 2-D drawings are virtually useless in this project.

The diagrid is realized as a complex axonometric drawing that accounts for every member, connection and can be broken down into construction sequences.

The fabricators also use traditional models of the floors created from plan drawings of the structural steel framing.

Each face of the diagrid is laid out in plan, and these are also used to create massing models to assist in visualizing the structure.

A screenshot showing the floors as they cut through the diagrid/crystals.

Part of an assembly movie that explains the different parts of the structural system.

The fabricator's wire frame drawing of the "whole job".

Each joint is detailed using software that incorporates loading requirements.

Site work on the steel components.

The pieces are shipped to the site in limited quantities to suit the erection sequence as on site staging area is quite limited. This stair component will be lifted into the crystal that rings the concrete core.

Ironworkers preparing the steel shelf angles and connectors to accept the steel floor framing at the concrete elevator core.

Overall view of steel as of August 31, 2004.

Closer view of the steel crystal that surrounds the concrete core.

Large truss elements comprised of HSS members ring this crystal which holds the central stair elements.

Closer view of steel framing, early September 2004.

Connection element at top of "vertical" member. All of the steel is considered "structural", rather than AESS (architecturally exposed structural steel), so it is finished with the knowledge that all of it will be hidden by fire protective coverings.