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ACI Names Winners of Annual Concrete Construction Awards

R·torso·C in Tokyo - For architecture on a small site, sectional and volumetric design is very important.The winners of the American Concrete Institute’s 2017 Excellence in Concrete Construction Awards were lauded during ACI’s convention in October in Anaheim, California.

The highest honor — the Overall Excellence Award — was presented to R·torso·C of Tokyo, Japan. This award is given to a project that demonstrates excellence in concrete innovation and technology.

This house is in central Tokyo on a 710-square-foot lot and belongs to a married couple who share a passion for architecture and art. When they found a rare corner lot, they wanted to build a unique home “towards the sky” to capture a feeling of vastness on a small site with large openings facing upward.

Chamfered corners provide a view to the sky from the interior and also for the people outside. There is an audiovisual room in the basement, and a gallery and a Japanese room on the first floor. Functionality was prioritized on the second floor with a very small living room, dining room, kitchen and bathroom.

“Concrete has been and still is the main material used for the structure of contemporary architecture worldwide, a trend I believe will continue for a while,” noted Yasuhiro Yamashita of Atelier Tekuto Co.

The ACI Excellence in Concrete Construction Awards were created to honor the visions of the most creative projects in the concrete industry, while providing a platform to recognize concrete innovation, technology and excellence across the globe. To participate in the Excellence Awards, projects had to have won at a local ACI Chapter level and submitted by that chapter or chosen by one of ACI’s international partners.

An independent panel of industry professionals judged projects and selected winners. The winning projects this year were:

Repair & Restoration

The Market Street Parking Garage in downtown Wichita was so deteriorated that the city had barricaded the entrances and condemned the structure for three years.
First Place: Market Street parking garage restoration in Wichita, Kansas

First Place: Market Street parking garage restoration in Wichita, Kansas
The Market Street Parking Garage in downtown Wichita was so deteriorated that the city had barricaded the entrances and condemned the structure for three years. Rather than tearing it down, city officials determined a rehabilitation was feasible and it would save the city millions of dollars. As the work progressed, repairs went far beyond the superficial. Ultimately the job involved replacing whole structural components, including concrete columns, beams and floor slabs.

It took 12 months and more than 1,750 cubic yards of concrete to bring the garage back to life and reclaim 550 parking spots. Through this project, the city of Wichita demonstrated its commitment to sustainable construction practices by reusing existing resources and being good stewards of community funds.

Project Team Members: Owner: City of Wichita, Kansas; Architect: Law Kingdon Architecture; Engineering Firm: Krudwig Structural Engineers; General and Concrete Contractor: Martin K. Eby Construction Co.; Concrete Supplier: Concrete Materials Co.

Road repair by Chillon Viaducts in Veytaux, Switzerland aci winner
Second Place: Chillon Viaducts in Veytaux, Switzerland

High-Rise Buildings

mbassy Lake Terraces in Karnataka, India shows off how to use concrete in a midrise building.
First Place: Embassy Lake Terracesin Karnataka, India

Flare Column at the Embassy Lake Terraces in India with 22 upper levels twisted at the 13th level.First Place: Embassy Lake Terraces in Karnataka, India
Embassy Lake Terraces is spread across 14.5 acres with nine “twisted” towers that orient the condominiums to offer spectacular views to the nearby Hebbal and Nagavara lakes. Five of the towers have two basements, a ground level, and 22 upper levels twisted at the 13th level, which also serves as the sky deck level. This level has been designed as an active zone with a jogging track, yoga center, water bodies, landscapes and a gym. The other four towers have two basements, a ground level, and 11 upper levels.

The slab system for the apartment floors is a wall and slab system. At the 13th level where buildings twist by 30 degrees, slabs are post-tensioned voided transfer slabs. This unique solution of voided slabs with post-tensioning has added a clean soffit at the sky deck levels, which are landscaped for occupants to enjoy the best view of the lakes.

Project Team Members: Owner: Embassy Group; Architect: Andy Fisher Workshop; Engineer: Innotech Engineering Consult Private Ltd.

Second Place: Premiere on Pine in Seattle for decorative concrete excellence.
Second Place: Premiere on Pine in Seattle

Mid-Rise Buildings

Years of planning, designing and construction went into the new Denver International Airport hotel and transit center.
First Place: Denver International Airport - Hotel Transit Center in Denver, Colorado

First Place: Denver International Airport - Hotel Transit Center in Denver, Colorado
Years of planning, designing and construction went into the new Denver International Airport hotel and transit center. The project includes a new train station servicing the commuter rail connection to and from downtown, a 519-room Westin Hotel and conference center, and an outdoor open-air plaza linking the hotel, conference center and train station to the Jeppesen Terminal.

The new 15-story building is predominantly made of cast-in-place concrete elements. Its upper 10 floors cantilever out 55 feet on each side of the building supported by leaning concrete columns. Much of the building’s façade is clad in a running-bond precast concrete architectural system made with a complex custom form liner. Several concrete areas are exposed for view, including shear walls, columns, beams and abutments with architectural finishes.

Project Team Members: Owner: Denver International Airport; Architect: Gensler; Engineering Firm: S.A. Miro; General Contractor and Concrete Contractor: Mortenson/Hunt/Saunders (tri-venture); Concrete Supplier: Martin Marietta.

Columbia University Medical and Graduate Education Building in New York City built using concrete as it's main ingredient.
Second Place: Columbia University Medical and Graduate Education Building in New York City

Decorative Concrete

The eight-story Ryerson Student Learning Centre marks the university’s new face in downtown Toronto and provides a gateway to its ever-expanding community.
First Place: Ryerson University Student Learning Centre in Toronto, Ontario

First Place: Ryerson University Student Learning Centre in Toronto, Ontario
The eight-story Ryerson Student Learning Centre marks the university’s new face in downtown Toronto and provides a gateway to its ever-expanding community. Featuring an elevated plaza and glass façade with bridges to the existing library, the learning center is home to a range of academic and collaborative spaces for Ryerson’s students, faculty and staff. Part of its frontage houses retail at and below grade.

While the concrete structure is visibly rugged and heavy, the building’s glass skin is lightweight and transparent. A frit pattern emphasizes this delicate nature while also creating varying lighting qualities inside. To demonstrate Ryerson’s long-time leadership in sustainability, the building is LEED Silver compliant and is topped with a green roof that encompasses at least half the rooftop. Overall, the project team had to overcome some unique architectural and structural challenges to design and form the concrete.

Project Team Members: Owner: Ryerson University.

Second Place award winner for excellence in concrete: Lock 8 Skate and BMX Park in Port Colborne, Ontario
Second Place: Lock 8 Skate and BMX Park in Port Colborne, Ontario.

skate park with huge ribbon of wavy concrete

Low-Rise Buildings

First Place: R·torso·C in Tokyo For architecture on a small site, sectional and volumetric design is very important.
First Place: R·torso·C in Tokyo

R·torso·C focuses on large openings facing the sky effectively incorporate the feeling of vastness in the home’s interior

First Place: R·torso·C in Tokyo
For architecture on a small site, sectional and volumetric design is very important. Cutting away the internal volume paradoxically creates a sense of spaciousness in the continuous four-story space inside. Large openings facing the sky effectively incorporate the feeling of vastness in the home’s interior.

Project Team Members: Owner: Private; Architect: Atelier Tekuto Co.; Engineering Firm: Jun Sato Structural Engineers Co.; General Contractor: Home Builder Co.; Concrete Supplier: Toyko SOC Co.; Additional Participants: Professor Takafumi Noguchi and Shirasu Supplier: Principal Co.

Second Place for an amazing low-rise concrete structure: Frick Environmental Center in Pittsburgh, Pennsylvania
Second Place: Frick Environmental Center in Pittsburgh, Pennsylvania

Infrastructure

The first design-build project awarded by the Kansas Department of Transportation, the $288 million Johnson County Gateway project was built in one of the most congested stretches of interstate in Kansas.
First Place: Johnson County Gateway in Overland Park, Kansas

First Place: Johnson County Gateway in Overland Park, Kansas
The first design-build project awarded by the Kansas Department of Transportation, the $288 million Johnson County Gateway project was built in one of the most congested stretches of interstate in Kansas. Currently more than 230,000 vehicles travel the area daily with that number estimated to jump to 320,000 by 2040.

This project added much-needed lanes and reconfigured existing interchanges throughout the I-435/I-35/K-10 corridor, as well as added 22 bridges and two diverging diamond interchanges. To alleviate exiting traffic weaving onto city streets, two collector distributor roads were built on either side of I-435.

Normally a project of this scope that involved placing more than 600,000 cubic yards of concrete would take at least six years to complete. However, the design-build process allowed design and construction to be completed simultaneously. The project began in spring 2014 and was completed before its Dec. 31, 2016, deadline.

Project Team Members: Owner: Kansas Department of Transportation; Architect: HDR; Engineering Firm: GBA; General Contractor: Gateway Interchange Constructors; Concrete Contractor: Clarkson Construction; Concrete Supplier: Fordyce Concrete Co.

Winona Bridge in Winona, Minnesota, features beautiful concrete walls
Second Place: Winona Bridge in Winona, Minnesota

More details on the winning projects can be found at www.concrete.org. Entries for the 2018 Excellence in Concrete Construction Awards are being accepted now through April 2, 2018. 

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