February 13, 2020

Analysis of Measured Marine Oil Terminal Berthing Velocities

Berthing velocities for design of fender systems have long been based on old and incomplete data, often from studies dating as far back as the 1950s. Both PIANC and MOTEMS continue to use values based on these old datasets in their...

February 13, 2020

Investigation and Initial Stability Analysis of a Wharf on Severely Deteriorated Steel H-Piles

By: Daniel Schuetz, Paul Schuman, Dominic Kelly, Daniel Robbins

The wharf at the Fore River Shipyard was built for shipbuilding circa 1960; recently, it was home to the USS Salem, a permanently-moored retired US Navy heavy cruiser that served as a museum. True to its intended purpose, the wharf is a robust...

January 8, 2020

Steel Stud Bearing Walls

By: Connor Bruns, Eric Twomey, Terrence McDonnell, Matthew Johnson

Pre-fabricated, structural cold-formed metal framing (CFMF) bearing walls are a trending construction system and an economical alternative to structural steel or reinforced concrete systems for mid-rise construction. CFMF wall systems are...

January 2, 2020

Cutting Prestressed Concrete Framing

This article examines the structural considerations of modifying existing PC floor elements and provides a case study where these methods were used successfully. The focus is on simply supported tee beams with fully bonded strands. It is...

December 2, 2019

Effects of the Improper Modeling of Viscous Damping on the First‐mode and Higher‐mode Dominated Responses of Base‐isolated Buildings

By: Ricardo Medina, Hamidreza Anajafi, Erin Santini‐Bell

In many finite element platforms, a classical global damping matrix based on the elastic stiffness of the system (including isolators) is usually developed as part of the solution to the equations of motion of base‐isolated buildings. The...

November 27, 2019

Seismic Risk Assessments and Due Diligence Studies

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.
November 14, 2019

A Probabilistic Assessment of PWR SNF Cladding Pinching Failure Considering Potential Transportation Accident Conditions

By: Ricardo Medina, Elmar Eidelpes, Luis Ibarra

This study presents a probabilistic assessment of pressurized water reactor (PWR) spent nuclear fuel (SNF) rod cladding pinching failure triggered by a transportation accident, after 300 years of dry storage. Three thousand pinching scenarios,...

Markets:Nuclear
October 22, 2019

Identifying Waterfront Design Solutions for Urban Resilience

Located in harsh marine environments, coastal and waterfront developments require special attention to improve resilience over the project’s design life. Material selection, siting questions, protective coatings, waterproofing detailing, and drainage are all important considerations for the design team.
October 22, 2019

Excavation Risks Adjacent to Existing Structures in Illinois and Urban Environments – Identifying and Managing Technical and Legal Issues

By: Scott DiFiore, Matthew Johnson, Gregory Meeder, James Chivilo

New construction in metropolitan areas has direct impacts on immediate neighbors and abutters. While noise and dust are generally nuisance concerns, demolition, vibrations, excavation, and dewatering can cause structural damage to...

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