Calibration of finite element models of concrete arch-gravity dams using dynamical measures: the case of Ridracoli

Buffi, Giulia; Manciola, Piergiorgio; Lorenzis, Laura De; Cavalagli, Nicola; Comodini, Fabrizio; Gambi, Andrea; Gusella, Vittorio; Mezzi, Marco; Niemeier, Wolfgang; Tamagnini, Claudio

doi:10.1016/j.proeng.2017.09.169

Cited by 19 publications

(13 citation statements)

References 12 publications

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“…Является основной моделью для оценки состояния основных конструкций комплекса взаимовлияющих ГТС. Модель разработана в универсальном промышленном программном комплексе ANSYS Mechanical, который в настоящее время широко применяется при решении подобных задач [8][9][10][11][12][13][14][15][16][17][18][19][20]. В случае разработки ПАК применение подобного ПО позволяет учитывать различные сочетания нагрузок, в том числе при учете граничных условий, передаваемых из моделей ГФМ и РГММ.…”

Section: модель напряженно-деформированного состояния сооружений (ндсм)unclassified

Development of the design module of the software and hardware complex to ensure the safety of mutually influencing HPS

Rubin¹,

Antonov²,

Bellendir³

et al. 2019

Struct. Mech. of Eng. Const. and Build

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Relevance. As part of the implementation of the Federal Law No. 117-FZ “On the Safety of Hydraulic Structures”, it is necessary to continuously monitor the state of hydraulic structures and related facilities by equipping with control and measuring instruments. The development of modern computer complexes allows us to carry out and predict the state of objects by combining computational research and field observations. The work is aimed at organizing a comprehensive assessment of the state of the HPS and ensuring the safety of existing and projected mutually influential complexes. Aims of research. Improving the safety of the operated (under construction) complex of interfering hydraulic structures. Assessment of sufficient and highquality engineering and repair work carried out on the HPS. Development of recommendations for improving the efficiency of construction of new and modernization of operated hydropower facilities. HPS on the example of the Zagorsk HPS. Methods. Representation of the interaction ideology of various software systems of mathematical modeling, using control and measuring instruments data for calibration and verification of mathematical models. Results. The structure of the HSC calculation module was updated, systematization of the calculation models was carried out, interaction and transfer of the initial data to the calculation module of the software and hardware complex was revealed. The implementation of scientific research is aimed at improving the safety of the complex hydraulic structures.

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Section: модель напряженно-деформированного состояния сооружений (ндсм)unclassified

Development of the design module of the software and hardware complex to ensure the safety of mutually influencing HPS

Rubin¹,

Antonov²,

Bellendir³

et al. 2019

Struct. Mech. of Eng. Const. and Build

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“…The mean value of all standard deviations was equal to 1.0 cm, 1.0 cm and 0.8 cm along each of the three directions, respectively. For a detailed description of the traditional topographic survey, the reader can refer to Buffi et al [38,39]. The deployment of GCPs could represent one major …”

Section: Ground Control Point Acquisitionmentioning

confidence: 99%

Water Level Measurements from Drones: A Pilot Case Study at a Dam Site

Ridolfi

Manciola

2018

Water

Self Cite

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Unmanned Aerial Vehicles (UAVs) are now filling in the gaps between spaceborne and ground-based observations and enhancing the spatial resolution and temporal coverage of data acquisition. In the realm of hydrological observations, UAVs play a key role in quantitatively characterizing the surface flow, allowing for remotely accessing the water body of interest. In this paper, we propose a technology that uses a sensing platform encompassing a drone and a camera to determine the water level. The images acquired by means of the sensing platform are then analyzed using the Canny method to detect the edges of water level and of Ground Control Points (GCPs) used as reference points. The water level is then retrieved from images and compared to a benchmark value obtained by a traditional device. The method is tested at four locations in an artificial lake in central Italy. Results are encouraging, as the overall mean error between estimated and true water level values is around 0.05 m. This technology is well suited to improve hydraulic modeling and thus provides reliable support to flood mitigation strategies.

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“…15 Further improvements were made with better representation of the dam-water-foundation interaction, dam joints, viscoelastic and absorbing boundaries conditions, non-linear behavior of the joints and concrete, and others. [16][17][18][19][20][21] A discussion of current key issues in dam analysis models is presented by Løkke and Chopra, 22 who show the advantages of the direct finite element approach, based on foundations with mass and absorbing boundaries, for nonlinear analysis. Similar conclusions are drawn by Penner et al, 23 based on a 2D LS-DYNA model, and by Robbe.…”

Section: Introductionmentioning

confidence: 99%

Characterization of the dynamic behavior of a concrete arch dam by means of forced vibration tests and numerical models

Gomes

Lemos

2020

Earthq Engng Struct Dyn

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The characterization of the dynamic behavior of an arch dam, and its evolution throughout the structure's lifetime, provides important data for the safety control process. Forced vibration tests remain a reliable technique for this purpose. The Baixo Sabor dam is a 123 m high arch dam recently built in Portugal. Forced vibration tests were performed before and after the reservoir filling.Two techniques for forced vibration test are compared, discrete frequency scanning, the standard methodology, and continuous frequency scanning (sine sweep), a new proposed methodology, which allowed faster results without loss of precision. For the interpretation of test results two numerical models of the dam-reservoir-foundation system were built, and calibrated with the experimental data. A good match of numerical and experimental results was obtained for the six lowest frequencies and corresponding mode shapes. K E Y W O R D Sconcrete arch dam, dam-water interaction, dynamic behavior, force vibration test, numerical models

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Calibration of finite element models of concrete arch-gravity dams using dynamical measures: the case of Ridracoli

Cited by 19 publications

References 12 publications

Development of the design module of the software and hardware complex to ensure the safety of mutually influencing HPS

Development of the design module of the software and hardware complex to ensure the safety of mutually influencing HPS

Water Level Measurements from Drones: A Pilot Case Study at a Dam Site

Characterization of the dynamic behavior of a concrete arch dam by means of forced vibration tests and numerical models

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