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Ninth Street Garage, St. Louis, Missouri
Single ACS System - Two Seperate Cores
Craneless Formwork Achieves 4.5 Day Cycle
The Ninth Street Garage is a 1,050 car parking structure located immediately adjacent to the historic Old Post Office in downtown St. Louis. The garage is part of the $77 million project developed by the DESCO group as part of a ongoing rejuvenation of downtown St. Louis.
Jacobsmeyer Mauldin Construction is the concrete subcontractor for this project and chose PERI for their formwork needs based on previous experience.
The 20,000 ft² (1,858 m²) job-site has only one tower crane, so the PERI ACS (Automatic Climbing System) was needed for the elevator cores. There are 14 levels of parking decks shored by MULTIFLEX, with 15 elevator core levels each with a pour height of 10 ft (3.05 m).
It takes just 15 minutes to safely climb the ACS units to the next level. The ACS unit can climb in any weather conditions and provides safe working platforms at any height.
The unique aspect of this project was that the same ACS core was used for two seperate elevator towers. This made the ACS cost-effective for the relatively low building height of the parking structure. The second core is currently under work, building on the successful construction of the first.
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Don Fair
Superintendant
“I have used PERI shoring for 4 years, but this was my first experience with ACS. The site service was excellent and we comfortably maintained our 4.5 day core cycle set out from the beginning. We trust PERI for our future formwork needs based on our experience for this job.”
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| Contractor: |
Jacobsmeyer Mauldin Construction Co., St.Louis |
| Field Service: |
PERI Indianapolis / PERI Weissenhorn |
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Field Service:
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PERI Formwork Systems, Inc., United States of America
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PERI scope 02/2006, USA, Canada
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