Engineering Inc. - May/June 2010 - (Page 18)

AC E C 2 0 1 0 Engin EE ring Ex C El lE n CE AwA rds hoNorAwArds Ysrael A. Seinuk, P.C.—New York, N.Y. HNTB Corp.—Chicago, Ill. A synergistic blend of a cable-stayed bridge and suspension bridge is an aesthetically pleasing and efficient new structure—replacing an inoperable bascule bridge. To meet an aggressive two-year deadline, the bridge’s 850-ton precast center span was built on falsework, and then lifted into place with hydraulic jacks to avoid disrupting Chicago River marine traffic. The new wider bridge improves safety, relieves congestion and generates economic advantages along a critical Chicago transportation artery. >> North Avenue Bridge Reconstruction, Chicago, Ill. The 22-story, newest addition to Dubai’s expanding Business Bay area radically advances traditional tower design with a distinctive concrete perforated shell that serves as an aesthetic feature and primary structural component. The concrete external skeleton features more than 1,300 strategically sized and arranged openings intended to channel both gravity and lateral loads down to the base of the building. The design produces a “chimney effect” cooling system that pulls air into the openings and up through a 3-foot gap between the glass window walls and exoskeleton, reducing the 300,000-square-foot building’s cooling costs by 30 percent. Levee Certification Using Geospatial Technologies, Wichita, Kan. Merrick & Company—Aurora, Colo. With 97 miles of levees and a history of significant floods, the city of Wichita needed a more accurate analysis of its flood-control systems—to abide by a post-Katrina federal levee recertification mandate and to avoid future loss of lives and property. The project team incorporated light detection and ranging (LiDAR) technology along with color digital aerial photography to capture high-fidelity geospatial data, including area topography, slopes, drainage flows and vulnerable flooding zones. The project is now a model for other levee recertification efforts nationwide. Dewhurst Macfarlane and Partners—New York, N.Y. Times Square’s newest tourist attraction is the largest publicly accessible all-glass facility in the world and a testament to structural glass engineering. The redesigned TKTS ticket booth, which processes more than $300,000 in daily theater ticket sales, features laminated glass load-bearing walls supporting structural glass beams with spliced glass fins and a glass roof. The structure is topped with a cascade of 27 ruby-red translucent glass steps rising 16 feet above the sidewalk, giving way to a unique public space and seating area. 18 ENGINEERING INC. MAY / JUNE 2010 >> TKTS Booth, Times Square, New York, N.Y. >> O-14, Dubai, United Arab Emirates >>

Table of Contents for the Digital Edition of Engineering Inc. - May/June 2010

Engineering Inc. - May/June 2010
Contents
From ACEC to You
News & Notes
Market Watch
Legislative Action
Noble Causes
2010 Engineering Excellence Awards
Engineering America’s Recovery: Highlights from 2010 Annual Convention
Members in the News
Business Insights

Engineering Inc. - May/June 2010