ER – POST System™

The following are pictures taken during the erection of the ER-POST™ system on the Bookman Stacks, a for sale condominium of 45 units in Minneapolis, Minnesota. The building is 70’-0” x 160’-0”, and has nine floors above the parking. The floors are approximately 11,000 square feet.

The 64’-0” long and 13’-6” tall precast concrete truss is delivered to the site on flat bed truck.
The truss is lifted off the truck and is starting its swing into position.
The truss is aligned with its support columns, slid into the column brackets, and welded to the columns.
The truss is in its final position and awaits the top and bottom chord precast plank to complete the floor system.
An overall view of the ER-POST™ system. Note the parking is clear spanned with precast prestressed double tees. The truss bottom chord supports the second floor and the truss top chord supports the third floor, thus leaving the first floor completely open. The floors are 12” precast prestressed concrete plank spanning between the trusses. The trusses are approximately 40’-0” o.c.
The top level trusses are in position. The floors of the levels below are in place. The erection system is repetitive which allows the building shell to be completed quickly, a major advantage in Minnesota construction.
The structure is near completion. All but the two final trusses are in place, and the precast plank will soon establish the two top floors. The erection is fast and simple, and with all precast elements – columns, trusses and plank the on site work is minimized. With this building elevation you can visualize the amount of open space on all floors, allowing for large flexible space planning.