Digitale Zustandserfassung von Gebäuden, Infrastrukturbauwerken und Naturgefahren

Bergmeister, Konrad; Strauß, Alfred; Hoffmann, Markus

doi:10.1002/9783433610879.ch8

Cited by 4 publications

(8 citation statements)

References 22 publications

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“…The preliminary evaluation consists of a rough assessment based on inspection, an accompanying study of the available documents, and a rough check on the structural safety. An alternative approach to visual inspection that can provide added value is the utilization of drone‐based inspections equipped with AI‐controlled cameras 8 . This technology enables more efficient and accurate data collection, allowing for comprehensive assessments of structures while minimizing the risks and limitations associated with traditional visual inspections.…”

Section: Main Methodologymentioning

confidence: 99%

“…An alternative approach to visual inspection that can provide added value is the utilization of drone-based inspections equipped with AI-controlled cameras. 8 This technology enables more efficient and accurate data collection, allowing for comprehensive assessments of structures while minimizing the risks and limitations associated with traditional visual inspections. In this level, it makes sense to distinguish between key performance indicators (KPIs), which allow a rough assessment, and the performance indicators (PIs) for detailed inspection, and to define (and distinguish) the performance targets and performance thresholds.…”

Section: Level I: Preliminary Assessment (Visual Inspections)mentioning

confidence: 99%

“…In line with the MC2020 provisions, the IM-SAFE project supports the use of a risk-based maintenance management system, using information from inspections, testing, and monitoring to ensure reliability, safety, and economic optimization for the entire life of the assets of an infrastructure network. 4,8,9 Although the IM-SAFE project focuses on the transport infrastructures such as bridges and tunnels, the proposes a framework for datadriven safety assessment related to lifecycle management is well applicable to other types of assets. maintenance strategy during the post-intervention phase.…”

Section: Through Life Managementmentioning

confidence: 99%

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Monitoring and data‐informed approaches for the assessment of existing structures

Strauß

Bergmeister

Daró³

et al. 2023

Structural Concrete

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Accurate information from monitoring of structures plays a critical role in making informed decisions regarding structural safety control and maintenance needs. Unfortunately, there are several gaps in the existing standards and the monitoring practices at local, national, and transnational (e.g., European) levels. The wide diversity of assets and their respective environments further complicates the development of standardized monitoring approaches. Despite the constantly increasing number of examples and intensive knowledge exchange on the use of information from inspection, testing, and monitoring to support the safety and risk assessment of existing structures, major challenges are being faced in establishing consensus on standardization in this domain. At the same time, the need for robust standardization that enables integrating structural monitoring with the assessment of existing structures is generally acknowledged by public authorities and industrial stakeholders. Extending the lifespan of structures to enhance sustainability is a critical imperative of our time and monitoring is expected to be key element of reliable service life extension of existing structures. However, development and adoption of new standards involve complex processes that require multi‐level dialogues, consensus, and commitment from political and industrial stakeholders to move forward from legacy procedures. The fib Model Code 2020 (MC2020) serves as a significant milestone in the development of new standards for monitoring and maintenance of concrete structures. It addresses the existing gaps in knowledge and seeks to close the gap between the practice and the standards with regard to the monitoring of structures. The important objectives of the MC2020 are to support the standardization bodies in formulating new standards in monitoring, maintenance, and safety of existing concrete structures. This paper presents the fundamental/basis for shaping the methodology of data‐driven assessment and the methodologies proposed in the ModelCode.

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Section: Main Methodologymentioning

confidence: 99%

Section: Level I: Preliminary Assessment (Visual Inspections)mentioning

confidence: 99%

Section: Through Life Managementmentioning

confidence: 99%

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Monitoring and data‐informed approaches for the assessment of existing structures

Strauß

Bergmeister

Daró³

et al. 2023

Structural Concrete

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“…B. Schallemission, Röntgen etc. ), da damit auch schwierig einsehbare Bereiche aufgenommen werden können [19]. Mittlerweile ist auch die KI‐unterstützte Interpretation solcher Inspektionsbilder weiter fortgeschritten.…”

Section: Zuverlässigkeit Und Bewertungskriterienunclassified

“…Auf der Grundlage der erhobenen Ausfalldaten kann eine statistische Analyse durchgeführt werden, um die durchschnittliche Ausfallrate λ(t) zu berechnen, welche in der auch schwierig einsehbare Bereiche aufgenommen werden können [19]. [16], vgl.…”

Section: Risikobasiertes Erweitertes Bewertungsverfahrenunclassified

Verlängerung der technischen Nutzungsdauer von Infrastrukturbauwerken auf Basis semiprobabilistischer Betrachtungen

Strauß¹,

Bergmeister²,

Seywald³

2023

Beton und Stahlbetonbau

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Eine der wichtigsten Maßnahmen im Rahmen der Diskussion um eine verbesserte Nachhaltigkeit im Bauwesen ist die Verlängerung der Nutzungsdauer unserer Bauwerke [1]. Daher werden intensive Forschungen in Bezug auf sich für die Infrastrukturbauwerke ändernde Umweltbedingungen sowie externe Lasteinwirkungen und neue Baustoffe sowie deren Auswirkung auf die Herstellung und den Betrieb von Infrastrukturen durchgeführt. Bereits jetzt lassen sich gemäß [2] Veränderungen in der Kinematik der Abbaumechanismen (Degradationen) beobachten. Insbesondere können wechselnde Umweltbedingungen (Expositionen) die Degradation der Werkstoffe und Strukturen beschleunigen, aber auch verlangsamen. Diese Erkenntnisse über die Degradationsprozesse, aber auch die verbesserten Kenntnisse der Geometrie und effektiven mechanischen Baustoffkennwerte sollen wirkungsvoll in die Ingenieurpraxis zur Bewertung der strukturellen Zuverlässigkeit und der verbleibenden Nutzungsdauer übergeführt werden [3]. Dieser Beitrag zeigt, wie die Elemente der Zuverlässigkeitsanalyse mit den Elementen vertiefter Prüf‐ und Monitoringverfahren kombiniert werden können, um die Degradationsprozesse aufgrund veränderter Umweltbedingungen und neuer Baustoffe periodisch zu bewerten. Daraus kann infolge mithilfe semiprobabilistischer Teilsicherheitsbetrachtungen die Nutzungsdauer festgelegt sowie bei Bestandsbauwerken die verbleibende Restnutzungsdauer verifiziert werden.

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Data based reliability and risk based assessment for service life extension of structures

Strauss,

Zimmermann,

Bergmeister

2023

ce papers

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One very important contribution to improving the sustainability of existing structures is to extend their service life. This also makes a valuable contribution to resource conservation. Therefore, the assessment and the required safety level of an existing structure are of particular importance. This is one of two contributions which together summarize the past, current and developing approaches to extending service life while ensuring safety. Herein it is presented the reasons why many existing structures no longer meet structural safety requirements. Both the loadbearing capacity and the usability must be guaranteed over a certain period of time at or above a certain safety level. It is examined how these, and their future development, can be reliably assessed by collecting and analysing key data and how this can be used to extend the service life of structures.

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Digitale Zustandserfassung von Gebäuden, Infrastrukturbauwerken und Naturgefahren

Cited by 4 publications

References 22 publications

Monitoring and data‐informed approaches for the assessment of existing structures

Monitoring and data‐informed approaches for the assessment of existing structures

Verlängerung der technischen Nutzungsdauer von Infrastrukturbauwerken auf Basis semiprobabilistischer Betrachtungen

Data based reliability and risk based assessment for service life extension of structures

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