Live from a fully assembled Test Building structure, it’s the Thermal Mass and Buoyancy Ventilation Research Project team! After welding the structural steel columns that support Newbern’s newest skyscrapers, it was time for the team to put them to action. As usual there is a lot of prep work that goes into any big dance here at Rural Studio. Let’s get into it!
Prepare the slabs!
First, the team re-pulled all their batter board strings and double-checked their placement and relationships to one another. The team used these strings to find the locations of the column base plates and bracket to slab connections. Next, they used templates to mark with spray paint the connection locations. More specifically, these templates helped mark where holes needed to be drilled for the threaded rods to be epoxied into the slab.
After the slab was properly marked using the templates, the team hammer drilled the connection locations. To ensure the holes were properly 9″ deep, all the extra dust and debris created when drilling was blasted out using the air compressor. With clean holes, the team proceeded to pump epoxy in then place the threaded rods. The epoxy binds the threaded rod and concrete slab together to serve as the connection from columns and bracing to the foundation.
Next, the team test fit all their bracing connections. This gave them the idea to test fit the base plate of every single column. To do this Jeff made a template of the base plate of each of the 8 columns and slipped them over the epoxied rods. While the epoxy was still drying the team hammered any rods that needed to be nudged to fit the template of the column baseplate.
Bring out your columns!
Finally! From welding to galvanizing to transporting, this team is ready to see these columns stand on their own!
In order to place the columns, Rowe hoisted them using the Bobcat and its crane attachment. Livia and Steve guided Rowe and walked the columns to place. Once the holes in the base plate aligned with the epoxied rods sticking out of the slab, Rowe lowered the column into place. Jeff and Cory then secured and leveled the columns and attached the bracing.
All the long hours of planning, drawing, and calculating in Red Barn paid off as these babies went up in under an hour! Next up the team leveled, plumbed, and corrected all the distances between the columns. Its important the columns are upright and in the right place so the structure in the SIP floor aligns.
In the following days the team grouted the columns bases and bracing to foundation collections. This adds another layer of security into the structure. Stay tuned for the SIPs spaceships landing atop these 8 sturdy columns!