Water was leaking into UCLA’s child care center, located on the top floor of the Westwood Marketplace. SGH investigated the cause of leakage and designed repairs.
Authorized by the Second Congress and President George Washington, construction of the Montauk Lighthouse at the eastern end of Long Island was completed in 1796. The octagonal lighthouse suffered from chronic leakage and numerous repairs...
At the power plant, 84 in. dia. steel discharge headers transfer water from the condenser to the discharge tunnel. SGH designed internally bonded, carbon fiber-reinforced polymer (CFRP) liners for the discharge headers and provided engineering...
Shortly after construction, the hospital reported rutting and liquid emanating from joints in sheet vinyl flooring, wet and soft adhesive under carpet tile and sheet vinyl, and cracking and bulging of vinyl composition tile (VCT) installed over a...
To make the campus more attractive to students, the University of Massachusetts constructed a new residential complex for its Commonwealth Honors College. The complex includes seven buildings sited around several courtyards. In addition to the...
Occupying a full block in Kendall Square, 75 and 125 Binney Street offer leasable laboratory and office space. The two buildings are primarily clad with grooved precast panels, metal panels, and punched windows. SGH provided building enclosure...
The original museum opened in Golden Gate Park in 1895. Damaged beyond repair by the 1989 Loma Prieta earthquake, the building was demolished in 2000 to make way for a new 292,000 sq ft building containing 116,000 sq ft of gallery and...
During winter seasons, St. Paul’s School struggled to maintain daily temperatures with overnight mechanical setbacks in their 1936 schoolhouse. Window air leakage leading to occupant thermal discomfort drove St. Paul’s to replace...
The 550,000 sq ft Van Ness offers offices, apartments, retail space, and below-grade parking in Boston’s Fenway neighborhood. The mixed-use development comprises two towers bridged by a landscaped plaza over ground-level retail spaces...
Southcoast Hospitals Group was looking to update Charlton Memorial Hospital, which was constructed in the early 1980s. They undertook a project to improve energy efficiency, reduce air leakage through the enclosure, and update the hospital’...
By: Gustavo Tumialan, Nestore Galati, Antonio Nanni, Paul H. Ziehl
The primary objective of in-situ load testing is to assess the safety and serviceability of an existing structural system with respect to a particular load effect. At this time, the most appropriate loading level and procedure, as well as the...
Abstract: This paper describes an investigation of the partial collapse of a structural steel frame during construction of a shopping mall in December 1999. The accident occurred when an assembly of a 36 ft tall steel column and an 80 ft long...
When wood foundation piles deteriorate, they can become incapable of supporting the buildings founded on them. This article, Part 1 of a 3-part series on pile biodegradation, discusses the available investigative techniques aimed at quantifying,...
Glass-and-metal curtain walls can provide an attractive, durable and cost-effective cladding solution, but in many buildings, they are plagued with problems ranging from air and water leakage to falling trim covers. The first two articles in this...
Abstract: Lack of integration between windows and the building weather-resistive barrier is a systemic problem in many buildings that often leads to leakage within a wall system. Consequences of improper integration typically include leakage,...
Abstract: This article discusses the deterioration of older concrete parking structures, the type of testing available to determine the structure's condition, and how to estimate the future performance of repair and protection alternatives....
Abstract: DOTs are interested in developing guidelines for use of large diameter corrugated HDPE pipe buried under roadways with shallow fill, but this application has not been studied extensively. A pooled fund study consisting of full-scale...
Abstract: This paper presents case studies to illustrate the importance of wood-engineering education in actual engineering projects and applications. The case studies are based on real projects from our engineering practice and include...
Abstract: The Utah Department of Transportation installed and manages over 47,000 culverts but has no comprehensive, quantitative method for evaluating the performance of these culverts. UDOT initiated a study to assess culverts throughout the...