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Use and potential of the digital twin of Structural Health Monitoring and Non-Destructive Testing for improving durability and preventing failures of existing structures

Jasińska Daria, Dutkiewicz Maciej, Ancelin Manon, Dias Elodie De Morais, Grasselli Arthur, Morise Nora, Laot Gabriel

Materiały Budowlane

2024

nr 6

12--16

In this article, we consider the application of Structural Health Monitoring (SHM) and Non-Destructive Testing (NDT) in existing facilities. Based on the literature and our own experience, the issue of structural monitoring is discussed with regard to the direction of this application in the context of further implementing digital twins in the future. The general algorithm and procedures in such a process and considers the impact of continuous monitoring on durability of the object. Building information modelling, structural health monitoring (SHM), 'Non-Destructive Testing' (NDT) are discussed. The whole is based on structures that are extremely important to the industry, such as industrial chimneys. In this article, we discuss an approach to automating the condition inspection process of existing facilities in the context of information management and the use of this information. Reference was made to examples of condition analyses of two steel chimney structures.

W artykule rozważane jest zastosowanie Structural Health Monitoring (SHM) oraz Non-Destructive Testing (NDT) w istniejących obiektach. Na podstawie literatury i własnego doświadczenia, zagadnienie monitorowania konstrukcji zostało omówione w odniesieniu do kierunku tego zastosowania w kontekście dalszego wdrażania cyfrowych bliźniaków w przyszłości. Przedstawiono ogólny algorytm i procedury w takim procesie oraz rozważono wpływ ciągłego monitoringu obiektu na jego trwałość. Omówiono modelowanie informacji o budynku, monitorowanie stanu konstrukcji (SHM), badania nieniszczące (NDT). Całość bazuje na konstrukcjach niezwykle ważnych dla przemysłu, takich jak kominy przemysłowe. W artykule omawiamy podejście do automatyzacji kontroli stanu technicznego istniejących obiektów w kontekście zarządzania informacją i wykorzystania tej informacji. Odniesiono się do przykładów analiz konstrukcji dwóch stalowych kominów.

Investigation on the effect of silane coupling agent treatment of steel fibers on the durability of UHPC

Du Shuang, Luan Congqi, Yuan Lianwang, Du Peng, Zhou Zonghui, Wang Jinbang

Archives of Civil and Mechanical Engineering

2023

Vol. 23, no. 2

art. no. e118, 2023

Ultra-high performance concrete (UHPC) is a type of cementitious material that has been specifically engineered to achieve exceptional mechanical properties and durability through optimized particle filling. However, the addition of steel fibers to the UHPC matrix creates a transitional region at the interface. Previous research has indicated that the use of silane coupling agents (SCA) on the surface of steel fibers is a promising approach for improving the bonding properties between the fibers and the matrix. This study aims to explore the impact of varying amounts of untreated steel fibers versus those that have undergone SCA treatment on the durability of UHPC. The findings indicate that treating steel fibers with SCA significantly narrows the pore space between the matrix and steel fibers, as well as enhances the production of hydration products on the steel fiber surface. Furthermore, this treatment facilitates the formation of a compact transition zone between the UHPC matrix and steel fibers. The electrochemical corrosion resistance, chloride ion penetration resistance, frost resistance, and sulfate erosion resistance of UHPC are all enhanced by this method. As a result, the durability of UHPC is significantly improved, making it an extremely promising avenue of research.