Janis Stirna engineering portfolio
Temporary works
Metroplace high-rise
A temporary structural system was designed to support the concrete pour for the diaphragm, which had to bear the weight of the entire 46-story building. A total of 782 cubic meters of concrete was poured onto the support system. In some areas, the shoring reached a height of five stories, with additional side bracing in various locations. The ground level was uneven, necessitating the use of numerous temporary wooden brackets and precisely positioned blocking. Additionally, this setup was reshored all the way to the ground with the appropriate reshore system to ensure stability
Mall concrete pour temporary works
Bridge concrete pour temporary works
Queen Mary school seismic underpinning
Following updates to the seismic code, many older buildings in British Columbia required seismic retrofitting. For this particular building, new, substantial foundations were necessary. I designed a support system that effectively 'lifts' the building, allowing for the pouring of concrete for the new foundations.
A support system was needed to allow workers to access the underside of a landing dolphin for maintenance. I designed a suspended platform system that provides safe access, incorporating fall arrest and tie-back features in compliance with the safety code requirements in British Columbia.
Ridley island swing stages
Temporary access was required for workers to repaint and perform necessary maintenance on the ferry. I designed a suspended scaffold to provide safe and efficient access for the task.
"Northern Adventure" scaffold
This scaffold is a standard access system used for house renovations, providing pedestrian access underneath while being securely tied to the building for lateral stability
Alexandra street scaffold
This is a wallform that is used to quickly and efficiently create the perimeter of the building.
Growers co-op wallform
University of British Columbia Asian centre scaffold
This scaffold was designed to encapsulate the structure and provide access for workers to replace the glass pinnacle.
