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By Edward J. Roberts, P.E., M.ASCE, Sangho Han, P.E., LEEDAP, and Andrew C. Polimeni, P.E., M.ASCE
The first supertall building in South Korea, the 555 m Lotte World Tower, in Seoul, features a gently curving, tapered shape and a mast, dubbed the "lantern," that consists of two separate diagrid structures that extend 50 m above the top occupied floor. Although the tapering shape presented significant challenges during design and construction of the 123-story structure, it effectively minimizes the wind loads on the tower.
By Scott A. Lovell, P.E.
The $400-million Dominion Boulevard Improvement Project, finished in 2016, is the largest locally administered project completed in the Commonwealth of Virginia to date. The project transformed Dominion Boulevard, in Chesapeake, from a two-lane road into a four-lane limited access, divided, toll highway composed of three new grade-separated interchanges and a twinspan bridge, crossing the Atlantic Intracoastal Waterway. Innovative funding solutions, a jack-of-all-trades design team, and public involvement helped bridge the gap between concept and reality.
by Tara Hoke
Newspaper accounts were forwarded to ASCE's Committee on Professional Conduct (CPC) reporting the criminal prosecution of a county official and two principals of a consulting engineering firm on charges that include conspiracy to defraud the United States. The project commenced with the commissioning of a study of the county's current sewerage capabilities and needs, with funding provided by a grant from the U.S. Environmental Protection Agency (EPA). Involving a firm in which the county's drainage director had a substantial ownership interest, and fees for services never performed, the CPC had to consider whether the members' participation in this scheme violated the ASCE Code of Ethics.
A Question of Ethics
by T.R. Witcher
Where does America begin? Jamestown? Plymouth? Philadelphia?
Wherever you place it, chances are good that East Liverpool, Ohio, did not make the short list. It's a small town hugging a curve in the Ohio River, roughly 40 mi northwest of Pittsburgh. But it was here--at the Beginning Point of the U.S. Public Land Survey (Point of Beginning)--that the ruthlessly efficient grid of land subdivisions that would define development patterns for most of the country began in the mid-1780s.
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