HomeMy WebLinkAboutSubmittal-Elvis Cruz-Morningside Park-Pool Complex Structural Integrity AssessmentSubmitted into the pub�c Z
record for ite (s)
City of Miami on ' City Clerk
Morningside Park — Pool Complex Structural Integrity Assessment
3.0 Conclusions
As a general conclusion, the Pool Complex existing structures are in good condition, but
need repairs of different levels, ranging to cosmetic to severe, in order to bring the facility
up to current codes and ensure extended service life. In our opinion, the existing Pool
Complex is salvageable and does not warrant a full reconstruction.
The reinforcement spacing provided by the NDT testing was comparable to the
reinforcernent spacing in the existing plans, which provides assurance on the as -built
construction of the Pool Complex. Existing elements depths and reinforcements are
structurally adequate for current load demands.
4.0 Mechanical Assessment
Pool Pump System:
The pool is approximately 40 feet x 100 feet, ranging in depth from 3 feet to 10 feet, which
equates to about 170,000 gallons; with an 8 inch diameter main drain line, 5 inch diameter
supply to the inlet loop, 5 inch diameter to the old filter system and 3 inch diameter inlet loop
piping. In addition, there are suction/vacuum and make-up water lines (approximately 3
inches in diameter).
Based on the current Florida Building Code, a commercial pool requires a recirculation and
filtration system to provide four (4) turnovers per day. This equates to a water flow of
approximately 700 gallons per minute (gpm). Assuming the head (pressure drop) of the
pump is between the minimum required by the Code, 60 feet, to around 75 feet, a 20
horsepower pump is required, which corresponds to the motor size of the original pump.
For the main piping, the Code states that the velocity in the pressure piping and filter
assembly headers shall not exceed 10 feet per second (FPS), with the suction piping not
exceeding 6 FPS. Based on the Code requirements and the estimated flow, the velocity of
the 8 inch diameter main drain/suction line is approximately 5 FPS and the velocity of the 5
inch diameter supply (pressure pipe) and filter headers are approximately 11 FPS. In
addition, the 3 inch diameter inlet loop piping serving the first two inlets on each branch also
appear to be greater than 10 FPS. As result, the 5 inch diameter piping and approximately
the first 30 feet of each 3 inch diameter inlet loop piping should be replaced with 6 inch
diameter and 4 inch diameter piping, respectively. Consideration should also be given to
replacing as much as possible of the 8 inch diameter main drain line, the suction/vacuum
line and make-up water line due to age and to reduce the possibility of future leaks.
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