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The Residences at the Ritz-Carlton, Philadelphia, Pennsylvania
ACS and RCS Systems Increase Productivity to Achieve 4-Day Cycle
The construction of this high-rise condominium building started in September 2006. It will be comprised of 42 levels of luxury condominiums, one mechanical and two amenity floors, and three levels of parking below the ground. Total height of this building will reach 518 ft (158 m) when the concrete construction is completed in the beginning of 2008. There are 11,000 ft² (1,022 m²) of slab, and 8,400 ft² (780 m²) of walls per typical floor.
With the comprehensive PERI formwork solution, contractors B. Pietrini & Sons are in a position to finish a complete floor in only four days. For this project, PERI ACS and RCS climbing formwork systems along with the VARIO wall formwork and SKYDECK slab formwork systems have been carefully matched. Due to the stringent system-related safety levels and the complete enclosure of the upper storys, construction work has been able to be carried out extremely safely resulting in fast building progress.
The modular SKYDECK panel slab formwork with the lightweight individual components and logical assembly sequence, guarantees substantial time advantages when forming the floor slabs. The SKYDECK drop head allows quick recycling of equipment from floor to floor. Consequently, the tight 4-day cycle can be maintained through the use of the ACS and RCS systems. With PERI ACS G (Automatic Climbing System - Gallows), walls and floors are poured at the same time.
In order to ensure high labor productivity and safety even at large heights, the PERI RCS climbing protection panel completely encloses the building edges of the three top storys at any one time. In addition to its function as a safety barrier against falling, it also provides reliable protection against wind and weather.
Project superintendent Bob Clements from B. Pietrini & Sons: "The ACS and RCS are both very useful tools. The RCS protective system makes our carpenters and workers feel extremely safe on the job. Even employees, who are otherwise afraid of heights, feel safe because they are contained within RCS P system. Due to this fact, they have no concept of height which increases productivity."
The mobile RCS self-climbing devices and hydraulic pumps ensure crane-independent climbing with minimum expenditure – with this, self-climbing technology is also cost-effective for structures with lower heights. The self-climbing devices have a lifting capacity of five tons. Due to their low weight, they are extremely easy to handle and can be quickly installed by means of quick-release mechanisms. In both cases - without and occasionally with crane support - the RCS units are guided safely and reliably on the building edges using climbing rails and shoes. The assembly can take place - depending on the building geometry and requirements - at the slab edge or on the wall itself.
PERI RCS Rail Climbing System is the new modular construction system for different climbing applications:
The RCS P climbing protection panel completely encloses the upper floors to protect against the wind and weather. The resulting enclosure provides an extremely safe work environment resulting in higher productivity. The exterior can also be used as highly visible advertising areas.
The RCS C formwork scaffold with carriage provides a comprehensive safety concept through the roller bearing-mounted carriage, self-locking mechanism and the high, totally enclosed protection panel.
The RCS L material lifter offers an additional means to achieve a crane-independent formwork operation. RCS L enables the movement of building equipment, such as SKYDECK, to the next floor without the use of a crane. The RCS L can be repositioned to the subsequent floor using the crane or with the mobile hydraulic mechanism.
In all cases, the climbing units are securely connected to the building by means of the RCS climbing shoe during the entire climbing procedure.
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| PERI Systems In Use |
ACS G Self Climbing System
RCS Rail Climbing System
SKYDECK Aluminum Slab Formwork System
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Bob Clements
Project Superintendent
"The ACS and RCS are both very useful tools. The RCS Protective system makes our carpenters and workers feel extremely safe on the job. Even employees who are otherwise afraid of heights, feel safe because they are contained within RCS P system. Due to this fact, they have no concept of height which increases productivity."
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| Conctractor: |
B. Pietrini & Sons Concrete Constructions, Philadelphia, PA |
| Field Service: |
PERI Baltimore, MD |
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Field Service:
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PERI Formwork Systems, Inc., United States of America
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PERI scope 01 | 2008, USA Canada
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