Structural Forensics

As a freelance micro-consultancy specializing in structural forensics, we investigate failure. Bridges, bridge construction machines, and their interactions. We analyze design and construction flaws, identify and assess standards of care, deliver expert advice and testimony, and educate non-technical parties on bridge design and construction.

And we do offer knowledge and learning to the bridge community. Dr. Rosignoli’s bridge engineering books are published worldwide by the American Society of Civil Engineers, the Institution of Civil Engineers (London, UK), Thomas Telford and the UNESCO, and his e-books, courses, and bridge engineering forum are followed by tens of thousands of bridge professionals.

Unique Credentials

Decades of experience in the design, design review, construction, and forensic engineering of complex bridges and bridge construction machines. Unique professional stature within the bridge community. Extreme familiarity with software programs for structural analysis and failure simulation, and long-term familiarity with working with legal counsels.

Discovery, preservation, and documentation of robust, abundant evidence avoid arbitrary conclusions and provide the basis for persuasive arguments

Investigating Failure

We investigate failure. Bridges, bridge construction machines, and their interactions. We analyze design, construction, and operation flaws. We determine causes, identify remediation methods, assure proper remediation, educate legal counsels and arbitrators, and provide advice, testimony, or both.

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Solid Modeling

Investigating cracking and loco-regional distress may require 3D numerical models and isoparametric finite-elements.

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Intricacies

Analyzing varying-geometry mechanical systems (tower cranes, self-launching gantries, movable scaffolding systems) may require thousands of finite-elements, nodal eccentricities, and frictional articulations.

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Nonlinearities

Staged construction, time-dependent stress redistribution, corrosion-induced section loss and local buckling may affect stability of equilibrium and fatigue life.

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Flexibility

Cable-supported bridges and bridge construction machines are prone to P-delta effects, vibrations and aeroelasticity.

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Multi-Physics

Dr. Rosignoli's published research ranges from aggressivity functions for resonance analysis of high-speed railway bridges to the use of stabilized plastic buckling for seismic dissipation.

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Unique Expertise

Our familiarity with long-span bridges, wind-tunnel testing and aeroelasticity? Seven cable-supported bridges in North America, 7 in Europe, 1 in Asia, 1 in Central America, and 1 in Africa.

Unique Credentials

Books

Dr. Rosignoli’s books are published worldwide. Launched Bridges (1998, ASCE Press), Bridge Launching (2002, Thomas Telford) and its 2nd edition (2014, ICE Publishing), and the bestseller Bridge Construction Equipment (2013, ICE Publishing) are international references, cited in dozens of publications and bridge design standards. Chapter 6.37.40 Bridge Erection Machines in the UNESCO Encyclopedia of Life Support Systems (2013, UNESCO) is also available worldwide.

I regard Marco Rosignoli not only as a worldwide-renowned expert, but in fact THE world authority, in the field of bridge launching.

John Stanton, PhD, PE, Professor of Civil Engineering, University of Washington (USA)

Marco Rosignoli's ability of merging field work with research and innovation makes his books and courses precious to the international bridge community.

Giuseppe Mancini, Prof.Ing., Dr.Ing., Professor of Structural Engineering, Professor of Bridge Design, Politecnico di Torino (Italy)

Your book "Launched Bridges" is the most complete presentation of this construction method. I congratulate you for this work.

Fritz Leonhardt, Prof.Em., Dr.Ing., Leonhardt, Andrä und Partners (Germany)

eManuals

Dr. Rosignoli’s bridge engineering eManuals can be downloaded from this website (PDF version) or Amazon (Kindle version). Just in the last two years, bridge professionals have downloaded eManuals from well over 50 countries.

The research and practical work of Marco Rosignoli have been enormously influential in diffusing the use of the incremental launching method in Europe.

Paolo Napoli, Prof.Ing., Dr.Ing., Professor of Structural Engineering, Politecnico di Torino (Italy)

Dr. Rosignoli's training and experience make him a world authority in the incremental launching of concrete bridges. 

Clifford L. Freyermuth, Executive Vice President, ASBI, American Segmental Bridge Institute (USA)

Marco Rosignoli has proposed new analysis and design methods, new technological solutions, innovative construction techniques... Marco Rosignoli is making the history of the incremental launching method.

Roberto Capozucca, Prof.Ing., Dr.Ing., Professor of Structural Engineering, Universita’ Politecnica delle Marche (Italy)

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Courses

The courses of modern bridge design and construction technology that Dr. Rosignoli teaches for the American Society of Civil Engineers and face-to-face in the offices of bridge owners, designers and constructors deliver state-of-the-art knowledge and learning for bridge professionals.

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Blog

Enjoy our rich collection of free publications, discussions, and commentaries.

This course was an excellent introduction to bridge launching. Did a great job of showing when it is cost-effective or applicable, and showing alternates. (Launched Bridges, 2-day course)

Angela Hunter, Design Engineer, Kiewit Infrastructure Co. (USA)

Great overview and resource to stimulate thought when selecting bridge type. (Launched Bridges, 2-day course)

Timothy Hayes, Senior Project Manager, Walsh Construction (USA)

Excellent seminar, Marco is an expert on the subject. (Mechanized Bridge Construction, 2-day course)

Brian Hamill, PE, Chief Engineer, Hardesty & Hanover (USA)