Mount Vernon, IL Hospital Renovation Supported by Woods Basement Systems' Products
As part of an expansion project a second level was planned for this existing one-story hospital. However, it was determined the second story addition would overload the four existing support columns. Therefore, new columns were proposed to be installed next to the existing columns to support the additional loading.
Helical Piers Installed to Support Second Story Expansion to Mount Vernon, IL Hospital
The hospital had to remain operational during the entire renovation, which posed an issue for access and allowable working space for Woods' installation crew. Helical piles were selected to support the proposed columns given their ability to be installed within the confined space of the existing building using relatively small equipment. The helical piers were installed with a high-flow skid steer, which could be driven through standard double doors and over temporary bridging that spanned excavations within the tight working conditions. For the safety of everyone in the building scrubber attachments were used to mitigate exhaust fumes.
Woods Basement Systems Secures the Foundation to add a Second Story to a Mount Vernon, IL Hospital
Hollow round shaft helical piers with an 8"-10"-12" triple-helix lead section were selected to support design working loads up to 50 kips per pier. Two column locations required a pair of helical piles to support a service load of 100 kips. Four helical piers were installed at each of the remaining two column locations to support a service load of 200 kips. The project engineer also specified two additional piers be installed near one of the new columns to provide support for contributory loads of a new wall construction. The piers were installed to achieve torque-correlated ultimate capacities of at least twice the design working loads (FOS ≥ 2). The installed piers were fitted with new construction caps and cast within the individual column footings.
Helical Piers Support Mount Vernon, IL Hospital Addition
The helical piers installation was completed in just two days! After this portion of the project was completed, construction of the Second Story began immediately.