quarta-feira, 8 de julho de 2009

Pushing—and Lifting—the Envelope: 2009 TCA Achievement Awards

Architecture has arrived, front and center, for tilt-up concrete. Recent advancements have really enhanced tilt-up's aesthetic and structural adaptability. Once limited to relatively plain, flat panels with minimal shadow or relief around window and door openings, this construction system can now produce curved walls, overhangs, walkways, and canopies. One notable tilt-up panel from the awards, which forms a conical-shaped entrance that is the building's  centerpiece, was cast on a specially shaped bed  resembling a skateboard park. At the same time,  the color and texture options  popular for precast and cast-in-place concrete are also finding more and more uses with tilt-up construction.

Panel under construction

As if improved appearances weren't enough, the sheer size of some panels is impressive. New equipment and technology have allowed for large walls, some as tall as 111 feet and others more than 80 feet wide, and weighing up to 120 tons. Not only does that make for speedy construction, it's another way that concrete adds to a tight building envelope with fewer joints and reduced maintenance.

Front view of completed panel

With 12 submission categories, the TCA Design Awards cover a wide range of building applications: commercial, education, housing, institutional, retail, office, warehouse, manufacturing/industrial, special, civic, spiritual, and parking garage. Click here for the TCA awards page.

Side view

Besides offering architectural appeal and construction speed, tilt-up can also contribute to sustainability. Using LEED® v3 NC (new construction) as an example, the table below summarizes how tilt-up concrete can generally help earn project points in five of the seven categories. It can help provide two of the (required) eight prerequisites and from 18 to 36 of the 110 total points.


Tilt-Up Concrete and LEED® v3 Rating System


Category

Tilt-up's potential contribution to project prerequisites and points

 

Prerequisites

Points

Sustainable sites

0

1

Energy & atmosphere

1

1-19

Materials & resources

0

10

Indoor environment

1

4

Innovation & design

0

2

 

 

 

TOTAL

2

18-36

Contact Jamie Farny or Donn Thompson.


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