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Displaying 18 Articles

Fall from Cellular Tower Investigation

By Edward J. Zemeck, P.E.
Expert Article

Cellular towers require frequent service calls to repair, upgrade, or install new communications equipment. They are also subject to routine inspection related to the structural integrity of the tower…

Retaining Wall Failures

By Mark Duckett, P.E., S.I.
Expert Overview

The damages that can result from the failure of a retaining wall range from minor to catastrophic. Retaining walls are structures used to retain soils (i.e., laterally support them) where a change in…

Utility Pole Failures

By Robson Forensic
Expert Article

The structural failure or collapse of a wood utility pole is often the result of advanced rot, vehicle impact, overloading, or some combination thereof. As part of a forensic investigation, experts…

The Standard of Care for Fastener Selection

By Mark Duckett, P.E., S.I.
Expert Article

The root cause analysis in many structural failure investigations leads directly to a failed connection, and ultimately to a failed fastener. The failure of a connection often leaves a structure…

Excavation Engineering: Building Damage Claims

By Robson Forensic
Expert Article

This article discusses excavation engineering, the common issues that arise with excavations in urban settings, and some of the failure points that we consider in our forensic investigations.…

Structural Collapse: A Forensic Perspective

By Robson Forensic
Expert Overview

This article sets the stage for looking at the world from the perspective of a structural engineer. For lawyers and insurance professionals, the article attempts to provide a framework for…

Florida Special Inspector Roles & Responsibilities

By Mark Duckett, P.E., S.I.
Expert Article

In this article, Structural Engineer and Special Inspector, Mark Duckett describes the role of the special inspector within the context of construction claims investigations. The article leverages…

Differential Column Shortening

By Robson Forensic
Expert Article

Un-level floors, inoperable windows/doors, and various misalignment issues of cladding and partitions in high-rise buildings are sometimes the result of a phenomenon known as differential column…

Wind and the Trajectory of Falling Objects

By Mark Duckett, P.E., S.I.
Expert Article

Many forensic cases involve objects that fell from an elevated position and were affected, in some part, by the wind. Whether the end result was injury or property damage, there is frequently some…

Concrete Spalling

By Mark Duckett, P.E., S.I.
Expert Article

In this article, the civil and structural engineers at Robson Forensic provide an introductory lesson on concrete spalling. They address the common causes and why spalling is a problem.  …

Structural Damage from Adjacent Construction Projects

By Robson Forensic
Expert Article

Construction projects in urban and other congested environments frequently require deep excavations and/or the use of heavy vibrating equipment in close proximity to existing structures. These…

Wood Truss Failures: Typical Failure Modes

By Robson Forensic
Expert Article

This article provides an overview of wood truss systems with a focus on how and why these systems typically fail. Wood Truss System Failures The civil/structural engineers at Robson Forensic are…

Construction Guardrail Failures

By Mark Duckett, P.E., S.I.
Expert Article

In this article, Structural Engineer, Mark Duckett, P.E., S.I., discusses the topic of construction guardrail failures. Through video, he introduces a properly designed and constructed guardrail, and…

Snow Related Roof Failures

By Mark Duckett, P.E., S.I.
Expert Article

In this article, structural engineer, Mark Duckett, P.E. discusses roof failures associated with snow loads. Topics of discussion include reasonable loads that roofs are designed to support and the…

Atypical “Other Structure” Collapses

By Mark Duckett, P.E., S.I.
Expert Article

In this article we explore the engineering issues associated with the load requirements of atypical structures, referred to in building codes as other structures. Investigating an Atypical "Other…

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