Completed in the mid-1920s, 140 New Montgomery Street is one of the early skyscrapers built in San Francisco. The Art Deco high-rise, originally known as the Pacific Telephone and Telegraph Building, served as the headquarters for the...
The Chicago Federal Plaza in Chicago’s Loop district includes the John C. Kluczynski Federal Building and Loop Station Post Office, both designed by Ludwig Mies van der Rohe. The plaza is used often for community activities, such as protest...
Previously a YMCA, the base structure for 1701 Rhode Island Avenue NW was repurposed for use as an office building, with new interiors and a modern building enclosure. The seven-story building offers tenants numerous amenities, including a...
SGH has provided building enclosure and structural engineering consulting services for multiple projects, including the Mall Terrace rehabilitation as part of a task order contract for the Pentagon. The historic Mall Terrace, on the building...
Designed by Cass Gilbert and constructed in the 1920s, the Chamber of Commerce is listed on the National Register of Historic Places. The street-facing elevations feature a story-high, granite-clad water table with three stories of limestone...
The exterior cladding at this two-story office building was deteriorating and occupants were reporting water leakage. The property manager wanted to repair the facade. SGH investigated the condition of the cementitious fiberboard wall panels and...
Now part of Pacific Gas & Electric Company’s (PG&E’s) General Offices, The Matson Shipping Building (215 Market Street) was constructed in 1924 and is listed on the National Register of Historic Places. The seven-story annex...
The ten-story building at 100 Binney offers attractive, leasable space to the tech and biotech companies moving into the growing Kendall Square area. The mid-rise structure nestles into the existing Cambridge neighborhood, while the sweeping...
Colonial Place includes three office towers clad with ribbons of brick and window walls. The owner was looking to upgrade their existing windows in two 1980s buildings and make other building enclosure improvements. SGH conducted a condition...
One California, designed by Wellton Becket Associates, is a mid-century modern high rise featuring vertical runs of windows between columns clad with precast concrete panels. SGH performed a condition assessment of the precast panels and found...
By: Mehdi Zarghamee, Erbay, Omer O., Andrew Sarawit, McAllister, Therese P., Gross, John L., Sadek,Fahim, Kirkpatrick, Steven, MacNeill, Robert A.
Abstract: The National Institute of Standards and Technology (NIST) conducted an extensive investigation of the collapse of World Trade Center towers (WTC 1 and WTC 2) and the WTC 7 building. This paper describes the component, subsystem, and...
The authors employed high-fidelity computer modeling to analyze the probable seismic performance of an existing high-rise, steel frame building with unreinforced masonry infill walls in downtown San Francisco. The Pacific Telephone and Telegraph...
This paper presents the structural analysis approach used and results obtained during the investigation conducted by the National Institute of Standards and Technology (NIST) to model the sequence of fire-induced damage and failures leading to...
Abstract: This paper describes the approach used to design seismic upgrades for an existing high rise, transitional masonry building in downtown San Francisco. The Pacific Telephone and Telegraph Co. building at 138 New Montgomery is a 26- story...
Also presented at the 18th Analysis and Computation Specialty Conference (part of the 2008 Structures Congress, April 24-26, 2008, Vancouver, BC)|Abstract: The first application of seismic isolation in the world that permits the vertical...
Abstract: Many commercial and multistory residential buildings constructed since 1960 are clad with brick masonry veneer. It is typically installed over steel stud or concrete masonry backup walls. After several decades in service, many of these...
This article describes an analysis of the structural collapse that occurred in World Trade Center (WTC) building 5 due to fire exposure on 11 September 2001. It is hypothesized that the steel column-tree assembly failed during the heating phase...
By: Donald Dusenberry, Mlakar, P.F., Harris, J.R., Haynes G.A., Phan, L.T., Sozen, M.A.
Abstract: An overview of fire damage sustained by the Pentagon structural elements in the September 11, 2001, terrorist attack is provided. The fire intensity in some compartments of the affected areas inside the Pentagon was approximated to be...
By: Donald Dusenberry, Mlakar, P.F., Harris, J.R., Haynes G.A., Phan, L.T., Sozen, M.A.
Abstract: The Pentagon was constructed between September 1941 and January 1943. A substantial renovation of the entire 6.6 million sq ft (610,000 sq m) facility began in 1999 and was scheduled for completion in 2010. On September 11, 2001, a...