24-meter truss to Mytec

Oscar Larsson has been working as a project engineer at EAB for almost six years, but the new trusses for the surface treatment company Mytec AB are among the most advanced trusses he has designed.

– Mytec suffered an extensive fire a couple of years ago, and now we have the opportunity to deliver a new structure to rebuild the part that burned down. The project is done in collaboration with MTA Bygg & Anläggning. One part of this project includes trusses to support the new overhead crane track, says Oscar.

There are many steps before these types of projects are completed. Oscar works closely with one of our structural engineers, who first performs strength calculations. Oscar then takes over and starts drawing the actual structure. For complex projects like this, it often requires multiple parties to be involved in discussions – from the structural engineer and project engineer to welders and assemblers. The solution needs to work all the way.

– A large part of the building was destroyed in the fire, but a challenge with the trusses for the overhead crane track is that they will be installed in a section where the existing trusses are still in place. They will be partially connected to the trusses already in place, and to make it work, we have implemented a lot of special solutions, Oscar explains.

The overhead crane track is 100 meters long, and to support it, something robust is required. The trusses are a full 24 meters long, and together they weigh almost 10 tons. Normally, trusses are lifted into place using a crane truck, but since these need to be installed in an existing building, the assembly needs to be solved in alternative ways.

– We will likely lift them into place from below, using several forklifts. It will be a precision job, says Oscar, smiling.