Although the coastal environment is known to be very corrosive, it should come as no surprise that “fresh water” structures can also need significant maintenance to stay serviceable. Because fireworks fallout and fertilizers, some of the theme park water we have tested is nearly as corrosive as seawater. But these flood control structures that we evaluated the service bridges on are as “out in the middle of nowhere” as you can get. But natural tannins, fertilizer and age still take their toll. These flood control structures are being refurbished and we confirmed that the service bridges are structurally suitable for light construction traffic (but never crane load a hatch or trench cover!).
ESE was commissioned to design two roof-mounted racks to support antennas weighing approximately 4000 Pounds each. The roof-mounted racks were to be attached to the roof framing atop a building located on Cape Canaveral’s Air Force Station. ESE had to first confirm the as-built drawings of the roof plan. Next, the conceptual design was roughly detailed and submitted. Once this preliminary design was approved by the client, the detailed design was modeled using STAAD.Pro to perform a structural analysis. An AISC code check was executed on all steel elements. A stress analysis indicated that all stresses were within allowable and the structure passed on code and statics checks. ESE provided ongoing support during fabrication and installation of the antenna racks.
During the ultrasound inspection of the scantlings, the Engineers were surprised to find riveted main transverse beams. Riveted construction has been out of use since the mid 1940’s.
ESE determined that it was more cost effective to replace every PT anchor in the east edges of all balconies. This meant taking twelve inches of concrete off of each edge and creating access holes every three feet at about three feet in from the edge to feed new PT cables ends through the new concrete edge.
Due to the harsh coastal environment and previous improper repairs, the balconies were severely damaged beyond economical repair.
Falling edge debris caused pool closure prior to restoration.
Some culverts ran under roadways which caused a need to ensure long term safety of the residents.
(Company Profile page)
Founded in 2001 by Byron and Ruth Evetts, Existing Structures Engineering, Inc. (ESE) is a registered engineering business specializing in the evaluation, remediation, and preservation of existing structures, plants, condominiums, theme parks, government properties and facilities that have been compromised by corrosion, water intrusion, fire, overloading or other events.
Byron Evetts, PE
Existing Structures Engineering, Inc.
102 Columbia Drive, Suite 105
Cape Canaveral, FL 32920