Featuring Gothic and Renaissance elements with a contemporary flare, the ten-story building exemplifies the character of downtown San Francisco after the 1906 earthquake. The building, which once housed a W. & J. Sloane...
The water distribution system in Cheyenne includes four prestressed concrete cylinder pipelines (PCCP), approximately 13.5 mi long. The 16 to 30 in. dia., lined-cylinder pipes (LCP) were installed between 1950 and 1962. Three of the PCCP carry...
The Muskegon County Wastewater Management System's pipeline is an 11 mi, 66 in. dia. prestressed concrete cylinder pipe (PCCP) that carries raw domestic and industrial sewage. SGH investigated the failure of a 20 ft pipe segment, performed a...
San Quentin Prison sits on Point San Quentin bounded by the San Francisco Bay. The site is laterally supported on the bay boundaries by the precast concrete seawall that was constructed in 2002. SGH investigated cracking and spalling of the over...
One and Four Longfellow Place are twin high rise apartments buildings and part of Boston’s Charles River Park development. The 38-story, cast-in-place concrete towers were built between 1972 to 1975. Corroded reinforcement in the exposed...
SGH developed an emergency repair for a 48 in. dia. prestressed concrete cylinder pipeline penetrating the concrete core of the Spot Pond Dam. The pipe was cracked at the penetration point due to ground movement at a nearby bend in the pipeline...
The Museum of Science parking garage was built in two phases in the late 1960s and partially spans the Charles River. After thirty years of exposure to weather and vehicles, chlorides from deicing salts permeated the top surface of the concrete...
Abstract: Corrosion of metals is an ever-present problem in the plumbing industry. Common piping materials such as copper, steel and cast iron are readily oxidized and thus undergo aqueous corrosion at a rate according to the corrosion potential...
Abstract: The speakers will discuss lessons learned from challenging detail conditions encountered during glass-and-metal curtain wall projects. Topics will include perimeter flashing, beam penetrations, canopies, inside and outside corners,...
Steel pipelines, whether buried in the ground or exposed to the atmosphere, are susceptible to corrosion, which may impact their structural integrity. Pipeline failures can be catastrophic, especially for pipelines that transport hazardous...
Abstract: Built in 1963 on the Miami, FL, waterfront, Miami Marine Stadium features a concrete hyperbolic paraboloid roof, one of the longest non-truss cantilever roof spans in the world. About one-third of the stadium is built over the water on...
Most of North America’s oldest water mains are constructed of ferrous material, in particular cast iron, ductile iron, and steel. Budgetary realities often make it impossible for utilities to replace these pipelines at the end of their...
Water sustains all life on earth. But it is also nature's universal solvent. Water causes more building enclosure failures than any other agent. Whether a failure results from excessive metal corrosion, or the spalling or displacement of...
Abstract: Designers have long been aware of the need to separate dissimilar metals. This requirement frequently appears in project specifications for sheet metal and other trades, but industry references for galvanic corrosion are inadequate for...
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...
Buildings with high relative humidity interiors, including hospitals, laboratories, and indoor pools, frequently experience wintertime condensation along windowsills and other perimeter components. Uncontrolled condensation in exterior envelope...
Many historic buildings are subject to deterioration from water penetration through the building envelope and into the building components. Unless the underlying structure is inspected and repaired concurrently with the failed building envelope...