Architectural structural design
High winds jeopardize
A quick response saves a contractor from threatened liquidation.
A problem developed during
the construction of a three-story office building in Colorado
Springs, Colorado. Before the structural steel had been placed,
high winds blew down one of the concrete shear walls that
formed the building lateral support system, damaging other
portions of the building and delaying construction of the
structural steel. The setback was serious enough to threaten
the contractor with liquidation. Time was of the essence.
Ken Root was called in to
review the situation and make recommendations on how to proceed.
He needed to assess whether the foundation and structural
slab had been damaged and, if so, whether the damaged area
could be removed, then recommend the best way to reconstruct
the concrete wall. Unfortunately, the foundation had been
backfilled and the debris from wind damage made the foundation
and the slab not visible for inspection.
After a quick field review,
Ken advised the contractor on the best method to remove the
debris as well as portions of the slab-on-grade without causing
further damage. He then conducted a thorough inspection and
made final recommendations for repair of the foundation and
reconstruction of the concrete shear wall. He designed new
structural connections based on the modifications made to
the shear wall when it was reconstructed. Use of existing
embed plates helped reduce the cost of the reconstruction.
With the problem resolved
in less than three days, the contractor suffered minimum lost
productivity and was able to complete the project on schedule.