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Ritchie
Coliseum |
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Location: |
University of Maryland, College Park,
Maryland. |
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Program: |
Renovation of 1930's era athletic building
for sports and extra-curricular activities. |
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Budget: |
$10,500,000.00. |
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Schedule: |
Design completed in 1995. Construction
completed 1997. |
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Acoustical Design Collaborative, Ltd
provided room acoustics, sound isolation,
HVAC noise control, and sound systems design
for the renovation of a 1930’s athletic
building to be used for intramural sports
and extra-curricular activities. The
architects exposed the building's original interior
wood roof decking and skylight which were covered by
acoustical materials as part of an earlier
renovation. Calculations indicated the
original ceiling materials with their low sound
absorption would result in a 4 s room reverberation
time. To reduce reverberance
and maintain durability, acoustical CMU and
cement acoustical plaster were specified for
the walls and a perforated metal acoustical
ceiling was specified above the bleachers.
Sound isolating double CMU walls and a
floating floor were necessary for the
mechanical equipment room adjacent to the
gymnasium. HVAC system noise control
included sound attenuators and double-wall
acoustical duct. Diffusers and grilles were
enlarged to reduce noise generation. The
exterior chiller required an acoustical
screen wall to meet the local noise
ordinance. The sound system comprises a
series of large format constant directivity
horns augmented by ported woofers. Ritchie
Coliseum provides much needed space for
athletics and physical education classes
while reusing a prominent campus building. |
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