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Awards | TCA Tilt-Up Achievement

Walter Sisulu Square of Dedication

2006 TCA Tilt-Up Achievement Award - Innovative Application/Technology Division

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Constructed on the center of the busiest traffic circle in Kliptown, this project had the goal of creating a complex feature entrance wall to a new National Monument in Soweto, South Africa.

The curved entrance panels were extremely complex and would have been virtually impossible to form accurately using conventional shuttering techniques for in-situ concrete walls and even more difficult to build using an in-situ structural frame with masonry infill. Tilt-Up also ensured a high degree of accuracy since it was possible to determine reference points for the panels in order to get the exact curvature of the panels.

This project presented several unique construction challenges. Since there was insufficient space to cast all the columns on the traffic circle, an area of vacant land was used as a casting bed. Site scaffolding was used to create casting platforms more than 2 meters in height, and all the columns were cast on these elevated platforms.

The entrance feature was comprised of two U-shaped walls that face each other. These walls were unique because the bottom of one was straight while the top was curved in and out and vice versa on the other wall. A flat lift with mid-air rotation was necessary because a conventional lift would have generated stress points on the panel. One crane was used to lift the panel horizontally and a second crane transferred the panel to an edge life during a mid-air transfer.

Project Specifics

Tallest Panel
59 ft 0 in
(17.98 m)
Largest Panel
635 sq ft
(59.0 sq m)
Heaviest Panel
100,000 lbs
(45,359 kg)

Participating TCA Members

Meadow BurkeSustaining Member icon
Lifting hardware, Bond breaker

About the TCA

Founded in 1986, the Tilt-Up Concrete Association (TCA) strives to improve the quality and acceptance of site-cast Tilt-Up construction, a method in which concrete wall panels are cast on-site and tilted into place. Tilt-Up construction is one of the fastest growing industries in the United States, combining the advantages of reasonable cost with low maintenance, durability, speed of construction and minimal capital investment. At least 10,000 buildings, enclosing more than 650 million square feet, are constructed each year using this construction method.

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