Case Study - University of Colorado Parking Garage and Field
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The University of Colorado Colorado Springs (UCCS) needed more campus parking for the Alpine Village student housing complex. In addition, the UCCS planning board approved financing to expand their sporting complex. This project served two purposes: a parking structure that acted as a recreational field. The 1200-car, four-story post-tensioned (PT) parking structure supported the 240 x 360 ft (73 x 110 m) artificial turf field on the roof level.
![PTI JOURNAL | December 2015 7
CASE STUDIES
UNIVERSITY OF COLORADO COLORADO
SPRINGS PARKING GARAGE AND FIELD
Why be boring and play soccer on the ground when
you can play on top of a parking garage?
The University of Colorado Colorado Springs (UCCS)
neededmorecampusparkingfortheAlpineVillagestudent
housing complex. In addition, the UCCS planning board
approved financing to expand their sporting complex.
This project served two purposes: a parking structure
that acted as a recreational field. The 1200-car, four-story
post-tensioned (PT) parking structure supported the
240 x 360 ft (73 x 110 m) artificial turf field on the roof
level. According to the project architect, “The garage was
recessed into the top of an arroyo to minimize its visibility,
to preserve views from adjacent housing areas, and to
maximize the connection between the recreational fields
and the main campus pedestrian spine.”
Unbonded PT Cast-in-Place slabs and beams helped
support the field with a 100 psf (4.8 kPa) live load, 33
psf (1.6 kPa) snow load, and dead loads from the field and
seating areas. As a result, the typical roof PT beams had
between 750 and 810 kip (3336 and 3603 kN) of required
prestressing force. The structural engineer stated, “After
considering multiple structural systems a PT one-way slab
and beam system was selected because of the open feel it
provided. Additionally, the PT system was structurally
efficient for both the parking and field levels.”
Over 750,000 ft (228,600 m) of encapsulated PT
tendons (Fig. 1) was installed in the parking structure
(slightly over 1 lb/ft2
[4.9 kg/m2
]). According to the
construction manager, “PT allowed the Design/Build
Team to provide greater overhead clearances and longer
beam spans; providing a more open and spacious parking
garage than other structural systems would have allowed.”
The470,000ft2
(43,665m2
),$23-millionprojectconstruction
was started early-2013 and was completed in Spring 2014.
Location: Colorado Springs, CO
Submitted by: AMSYSCO, Inc.
Owner: University of Colorado Colorado Springs
Engineer(s): Martin/Martin
Contractor: Mortenson Construction
PT Supplier: AMSYSCO, Inc.
Fig. 1—Field level PT deck placement.](https://image.slidesharecdn.com/universityofcolorado-casestudy-151102220943-lva1-app6892/85/Case-Study-University-of-Colorado-Parking-Garage-and-Field-1-320.jpg)
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Case Study - University of Colorado Parking Garage and Field
- 1. PTI JOURNAL | December 2015 7 CASE STUDIES UNIVERSITY OF COLORADO COLORADO SPRINGS PARKING GARAGE AND FIELD Why be boring and play soccer on the ground when you can play on top of a parking garage? The University of Colorado Colorado Springs (UCCS) neededmorecampusparkingfortheAlpineVillagestudent housing complex. In addition, the UCCS planning board approved financing to expand their sporting complex. This project served two purposes: a parking structure that acted as a recreational field. The 1200-car, four-story post-tensioned (PT) parking structure supported the 240 x 360 ft (73 x 110 m) artificial turf field on the roof level. According to the project architect, “The garage was recessed into the top of an arroyo to minimize its visibility, to preserve views from adjacent housing areas, and to maximize the connection between the recreational fields and the main campus pedestrian spine.” Unbonded PT Cast-in-Place slabs and beams helped support the field with a 100 psf (4.8 kPa) live load, 33 psf (1.6 kPa) snow load, and dead loads from the field and seating areas. As a result, the typical roof PT beams had between 750 and 810 kip (3336 and 3603 kN) of required prestressing force. The structural engineer stated, “After considering multiple structural systems a PT one-way slab and beam system was selected because of the open feel it provided. Additionally, the PT system was structurally efficient for both the parking and field levels.” Over 750,000 ft (228,600 m) of encapsulated PT tendons (Fig. 1) was installed in the parking structure (slightly over 1 lb/ft2 [4.9 kg/m2 ]). According to the construction manager, “PT allowed the Design/Build Team to provide greater overhead clearances and longer beam spans; providing a more open and spacious parking garage than other structural systems would have allowed.” The470,000ft2 (43,665m2 ),$23-millionprojectconstruction was started early-2013 and was completed in Spring 2014. Location: Colorado Springs, CO Submitted by: AMSYSCO, Inc. Owner: University of Colorado Colorado Springs Engineer(s): Martin/Martin Contractor: Mortenson Construction PT Supplier: AMSYSCO, Inc. Fig. 1—Field level PT deck placement.