Elkridge Elementary School is part of the Howard County Public School System. The one- and two-story school building, originally constructed in the early 1990s, was renovated and added to around 2008. In 2016, the school district observed cracked...
Constructed in the early 1980s by the Arizona Public Service Company, the water reclamation supply system at Palo Verde Nuclear Generating Plant consists of thirty-six miles of prestressed concrete cylinder pipe (PCCP), with diameters ranging...
In 2010, Miami-Dade Water and Sewer Authority (MDWSA) instituted a continuous inspection and repair program for their 48 in. to 96 in. dia. prestressed concrete cylinder pipes (PCCP). With brief periods to perform repairs and field conditions (e....
The 144 in. dia. circulating water pipeline at Fermi 2 consists of two intake lines between the reservoir and condenser and two discharge lines between the condenser and two cooling towers. All four pipelines are prestressed concrete cylinder...
Ramal Norte Pipeline is a 27 km long subsurface pressure pipeline that provides drinking water from Huachipa Water Treatment Plant to several districts in Lima, Peru. The pipeline was in temporary operation mode, awaiting completion of the...
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 Greybull Water Transmission Pipeline is the only pipeline that carries treated water for the town of Greybull. The 16.5 mile pipeline was constructed in 1960s and 1970s with 12 in. and 14 in. dia. asbestos cement (AC) pipes. SGH performed a...
Designing a structure to reduce the likelihood of disproportionate collapse requires an understanding of structural and material behavior and the expected response of that particular structure to the loss of a selected portion of the vertical...
This paper presents the recent enhancements to Tarrant Regional Water District’s (TRWD’s) geographic information system (GIS)-based structural evaluation tool, how this tool is used to improve asset management capabilities,
Prestressed concrete cylinder pipeline (PCCP) condition assessment methods include an acoustic wave propagation testing technology (ePulse) to identify sections of pipeline with reduced structural stiffness. A recent innovation, ePulse,
Similar article presented at the 22nd International Conference on Structural Mechanics in Reactor Technology 18-23 August, San Francisco, California, USA - Fitness-for-Service of Corroding Metal Pipelines
Abstract: Failure margin analysis of prestressed concrete cylinder pipe (PCCP) evaluates the effect of broken prestressing wires on performance of the pipe and its margin to failure using the risk curves technology. The risk curves technology is...
Abstract: This document is intended to provide owners and practicing engineers with current best practices to reduce the likelihood of progressive collapse of buildings in the event of abnormal loading. The report includes a discussion of an...
Abstract: A progressive collapse is a structural failure that is initiated by localized structural damage and subsequently develops, as a chain reaction, into a failure that involves a major portion of the structural system. The collapse of the...