Structural Forensics

As a freelance micro-consultancy specializing in structural forensics, we investigate bridge failures and claims – during design, construction, and operations. And we provide subject-matter expert services to bridge owners, designers, constructors, suppliers of components and construction machines, legal counsels, and insurance carriers.

We also offer knowledge and learning for the bridge community. Dr. Rosignoli’s books are published worldwide and cited in dozens of publications and bridge design standards. His researches, lectures and training courses are followed by tens of thousands of bridge professionals. Bridge Design & Construction, his LinkedIn forum, enjoys the participation of 16.000+ bridge engineers from every corner of the world.

Unique Credentials

Decades of experience in the design, 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. 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 often requires solid numerical models and isoparametric finite-elements.

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Intricacies

Modeling varying-geometry mechanical systems such as tower cranes, self-launching gantries and 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 losses, and nonlinear local effects may adversely affect stability of equilibrium and fatigue life.

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Flexibility

Cable-supported bridges and bridge construction machines may be prone to P-delta effects, vibrations, multiple forms of instability, and aeroelastic effects.

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Multi-Physics

Our published research ranges from aggressivity functions for resonance analysis of high-speed railway bridges to seismic dissipators featuring stabilized cyclic shear yielding.

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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. And of course, many super-flexible bridge construction machines.

Unique Credentials

Books

Dr. Rosignoli’s books are distributed worldwide. Launched Bridges (1998, ASCE Press), Bridge Launching (2002, Thomas Telford) with 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 16 eManuals of modern bridge design and construction technology can be downloaded from this website (PDF version) or from Amazon (Kindle version). In a couple of 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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Training Courses

The courses of modern bridge design and construction technology that Dr. Rosignoli teaches for the ASCE Continuing Education Program and on-demand 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. You are very welcome.

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)