Prestressed concrete cylinder pipe (PCCP) have been used for water transmission systems for more than sixty-five years. Therefore, utilities need effective means to identify distressed or deteriorated pipe, estimate levels of distress, analyze...
Prestressed-concrete cylinder pipe (PCCP) makes up a significant portion of pipelines for the world's water, wastewater, and cooling water systems. Distress to PCCP can include broken wires, cracked core, or corroded steel cylinder. Renewal of...
The 2015 version of the International Building Code includes new provisions that relate to unvented enclosed rafter/truss assemblies and unvented attics, which dictate how design professionals specify vapor retarders and placement of insulation in compact roof assemblies for moisture control.
In recent years, the International Building Code (IBC) has mandated that all new construction for K-12 schools in most of the Midwest and South Central United States include a community storm shelter. It is important for community officials and project team members to understand these requirements and follow best practices for designing these critical structures.
All parking garages under the jurisdiction of the New York State Uniform Fire Prevention and Building Code must undergo a periodic condition assessment to help ensure structural integrity and user safety. This is a recent mandate resulting from a...
Recognizing the potential threat of earthquakes, many building owners and property managers seek seismic risk assessments (also called seismic due diligence studies) to understand the condition of structures they currently own or intend to purchase.
Additions, alterations, and voluntary seismic improvements to existing buildings can be challenging to implement in California. Our 2018 paper presented this issue and surveyed engineers throughout the state to determine if there is uniformity in...
The Richter magnitude 6.7 San Fernando Earthquake occurred on the morning of February 9, 1971 in the San Fernando Valley north of the city of Los Angeles. Also known as the Sylmar Earthquake, it caused 65 deaths, 2500 injuries and an estimated $...
We, as structural engineers, often find ourselves confined by a situation we created for ourselves. We operate in a design environment with easy access to information, have the ability to collect and analyze extensive data, and have access to...
Resilience has become a common term among engineers, policymakers, and the national community of construction industry professionals. NCSEA recently formed a Resilience subcommittee to develop positions and recommendations on issues concerning...