Founded in the early 1900s, Chevron’s Richmond Refinery produces gasoline, diesel, jet fuel, and lubricants. Since the refinery is located within the corporate boundary of the City of Richmond and on San Francisco Bay, it is subject to...
The new three-story Museum of Science is a living laboratory that invites visitors to learn about science and technology with an emphasis on South Florida’s culture and ecosystem. The 250,000 sq ft building features a Gulf Stream Tank...
For the R.O. Pickard Environmental Centre digester expansion program, the owner's engineer envisioned two structurally-identical, modified, egg-shaped digesters founded on drilled piers extending 80 ft to bedrock. The general contractor elected...
As part of an effort to eliminate open distribution storage reservoirs, Massachusetts Water Resources Authority sought to construct two covered drinking water storage tanks. The Blue Hills Covered Storage Project involved the construction of two...
DN Tanks (formerly Natgun) designs and constructs prestressed concrete liquid storage tanks. The tanks are American Water Works Association (AWWA) D110 prestressed wire-wound concrete tanks that incorporate precast concrete panels. SGH developed...
The tank, classified as an American Water Works Association (AWWA) D-110 Type I tank, is a strand-wound circular, prestressed concrete water tank with cast-in-place concrete tank walls clad in shotcrete. DN Tanks wanted to evaluate if the...
The new Blacktip Reef exhibit is home to the Blacktip Reef shark and other sea creatures native to the Indo-Pacific reef. This feature occupies the heart of the National Aquarium in an area previously inhabited by the Wings in the Water. SGH...
Crom Corporation designed and built two 3.0 MG egg-shaped sludge digesters for Baltimore's Back River Wastewater Treatment Plant. SGH performed a peer review of the structural design of the new digesters. Although egg-shaped digesters are rather...
The Deer Island Wastewater Treatment Plant, which is owned and operated by Massachusetts Water Resources Authority, removes pollutants from wastewater that originates in homes and businesses in the greater Boston area. Buchart-Horn, the Electric...
On January 15, 1919, a tank containing over 2 million gallons of molasses burst, sending a wave of thick fluid through the streets of the North End of Boston. It killed 21 people, drowned several horses and...
Abstract: A pushover analysis of an existing hollow cylindrical pedestal of a concrete elevated water storage tank is presented. The analysis is based on the three-stress-invariant cap model incorporated in LS-DYNA. The computed results include...
By: David McCormick, Zareian, Farzin, Sampere, Carlos, Sandoval, Victor, Moehle, Jack, Leon, Roberto
Abstract: This paper summarizes the EERI reconnaissance team findings on damage to the Chilean wine industry after the 27 February 2010 Offshore Maule Earthquake. Wine production is one of the major industries in Chile, with an annual production...
Presented at Symposium on Plastic Pipe and Fittings: Yesterday, Today, and Tomorrow, American Society for Testing and Materials, Atlanta, GA, Nov 2009. Also published in STP1528: Plastic Pipe and Fittings: Past, Present, and Future. Structural...
Abstract: An investigation of the stability of the roof of an 85-ft diameter cylindrical prestressed concrete wastewater treatment tank is presented. The roof of the tank is a very thick, shallow spherical dome. With a 1/16 rise to span ratio, 2...
Our proposal that some of the parameters of the two-mass model for a not-flat-bottom tank may be approximated with sufficient accuracy for use in design by an equivalent cylindrical tank with a flat bottom with the same volume and free surface...
Abstract: The identification and rehabilitation of circular prestressed concrete tanks to increase their service lives by implementing tested standards such as ANSI/AWWA D110 and ACI 372 is discussed. A prestressed concrete tank is mainly a...
Abstract: Plastic pipe has been used for many years in applications to control surface water runoff by detention, retention, and infiltration. Review of deficiencies with available pipe geometries resulted in creation of a new product,...