Health monitoring of the Veresk Bridge by comparing the results of precision instrument measurements and modelling with Abaqus software and wavelet function

• Autorzy: Kivani Mahtisa , Keyhani Ali

Identyfikatory

DOI

10.7409/rabdim.023.009

Warianty tytułu

PL

Monitoring stanu mostu Veresk – porównanie wyników uzyskanych z precyzyjnych przyrządów pomiarowych oraz z modelowania z zastosowaniem programu Abaqus i funkcji falkowej

• Języki publikacji: EN PL

Abstrakty

EN

Identification and classification of structural failures is a vital aspect of bridge maintenance. When local structural damage is identified without delay, its repair is less expensive and problematic than in the case of general damage. To determine seismic vulnerability or post-seismic damage, structural health assessments are frequently performed on bridges, dams, and buildings. The aim of this study is to keep track of the overall health of the Veresk Railway Bridge, which has been in service for over 90 years. For this purpose, the structure was modeled in the ABAQUS finite element software. Mode shapes of the structure were then extracted, the positions were determined as maximum points using MATLAB software, and a wavelet function was applied to these shapes. The results showed that the wavelet function is highly accurate and its results are close to the real values measured for the bridge.

PL

Identyfikacja i klasyfikacja uszkodzeń konstrukcji nośnej stanowi niezwykle ważny aspekt utrzymania mostów. Odpowiednio szybkie rozpoznanie lokalnych uszkodzeń pozwala na ograniczenie kosztów i problemów związanych z ich naprawą w porównaniu do konieczności remontu całej konstrukcji. Aby określić podatność obiektów na oddziaływania sejsmiczne lub zbadać związane z nimi uszkodzenia często przeprowadza się ocenę stanu technicznego mostów, zapór i budynków. Celem niniejszej pracy jest zbadanie uszkodzeń i ogólnego stanu technicznego mostu kolejowego w Veresk, który jest eksploatowany od ponad 90 lat. W tym celu wykonano model mostu w oprogramowaniu ABAQUS przeznaczonym do analizy metodą elementów skończonych. Uzyskano postacie drgań własnych konstrukcji – pozycje określono jako punkty maksymalne w programie MATLAB – po czym zastosowano do nich transformację falkową. Wyniki analizy wykazały, że transformacja falkowa jest bardzo dokładna, a uzyskane wartości są zbliżone do rzeczywistych wyników pomiarów wykonanych na moście.

Słowa kluczowe

EN

ABAQUS; precision instruments; Veresk Bridge; wavelet function

PL

ABAQUS; most Veresk; precyzyjne przyrządy pomiarowe; transformacja falkowa

• Wydawca: Instytut Badawczy Dróg i Mostów
• Czasopismo: Roads and Bridges - Drogi i Mosty
• Rocznik: 2023
• Tom: Vol. 22, no. 2
• Strony: 181--199
• Opis fizyczny: Bibliogr. 25 poz., rys., tab.

Twórcy

autor

Kivani Mahtisa

• Islamic Azad University, Department of Civil Engineering, Shahroud Branch, Shahroud, Iran

• https://orcid.org/0009-0009-8996-9910

autor

Keyhani Ali

• Shahrood University of Technology, Faculty of Civil Engineering, Shahrood, P.O. Box: 3619995161, Iran

• https://orcid.org/0000-0002-5544-0631

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