Project information

submitted by
Renan Richard Da Cunha

Co-Authors
Andrés Eduardo Blanco Torrell, Renan Richard Da Cunha, Marjorie Pons Piñeyro, Mikiyas Belayneh Yigezu

Mentors
Univ.-Prof. Dr. Dipl.-Ing. Guido Morgenthal MSc DIC MPhil CEng MICE, MSc Gledson Rodrigo Tondo

Faculty:
Civil and Environmental Engineering

Degree programme:
Natural Hazards and Risks in Structural Engineering (NHRE) (englischsprachig) (Master of Science (M.Sc.))

Type of project presentation
Lecture

Semester
Summer semester 2021

Project description

Vortex-Induced Vibrations (VIV) essentially consist of motions induced on structures interacting with an external fluid such as wind, producing periodic irregularities on the flow, therefore generating undesired vibrations on the construction.

When this takes place in bridges, for example, this could lead to fatigue problems which could reduce the total lifespan of the structure, serviceability issues like cracks, interruptions of traffic, or even disruption during the construction process. The latter happened in our case study: The Alconétar Bridge in Spain.

Our project consisted of modeling the VIV episode that took place in Alconétar to understand its critical wind velocity and magnitude of the vertical displacements. Then, exploring different types of solutions, we could analyze the reductions of these effects. Simulations of the bridge were performed with the addition of damping elements (TMDs), which are applied to reduce the vibrations of structures. Another solution was the implementation of an Artificial Intelligence Model which could estimate damping values hence reducing the necessary number of simulations.

The objective of presenting this project in the Summaery 2021 is to explain a technical civil engineering subject in a simplified manner, making the presentation as accessible as possible to students or spectators of all fields of study.

Email: renan.richard.da.cunha[at]uni-weimar.de

Videos

https://vimeo.com/575011978

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Files and presentations

• VIV_-_Alconetar_Bridge_-_Summaery_2021.pdf