The Sea-Based X-Band Radar (SBX) is a major component of the Ground-Based Mid-Course Missile Defense (GMD). The SBX is a mechanically steerable, phased-array radar antenna mounted on a self-propelled, ocean-going, semi-submersible platform. This...
The City of New York wanted to build a minor league baseball stadium on the north shore of Staten Island. The project team had concerns that included the effects of wind on pedestrian comfort and on the games played at the three-level, 6,...
Designed by I.M. Pei & Associates, the John Hancock Tower in Boston’s Back Bay is clad with reflective glass. The sixty-story John Hancock Tower was still under construction in 1972 when many of the reflective glass units began to...
When pieces of the 4 in. thick limestone facade began falling off the 500 ft tall Miami-Dade Government Center, SGH investigated the cause of distress.
Built in 1983 and 1987, Two and Three Gateway Center served as the headquarters of Prudential Real Estate. The glass/metal curtain walls of these fifteen- and nineteen-story buildings suffered from nickel sulfide (NiS) induced spontaneous...
A Mixer/Ejector accelerates the air flow through the rotating blades area of the wind turbine and results in a significant increase in the wind energy that can be captured. This paper presents the design and construction of a fiber-reinforced...
Abstract: ASCE 7-10 allows design of the Main Wind Force Resisting System (MWFRS) of buildings with a mean roof height of less than 60 ft using either the Directional Procedure of Chapter 27 or the Envelope Procedure of Chapter 28 (sometimes...
Abstract: At a remote US air base in northern Greenland, 700 miles inside the Arctic Circle, a Danish Contractor worked with US engineers and US materials to construct a radar tower and supporting equipment building. Problems with site access,...
Abstract: The Giant Magellan Telescope (GMT) will be a 21.5-m equivalent aperture optical-infrared telescope located in Chile. The segmented mirror surface consists of seven 8.4-m diameter mirrors. The telescope structure will be inside a...
Sutro Tower, in San Francisco, California is a 770-foot high, freestanding steel broadcast tower supporting three main, 215-foot high antenna structures and numerous ancillary broadcast equipment. It is owned and operated by a consortium of the...