Technical condition monitoring of the bridge in Kostomlaty

The TwinBridge system enabled us to gain a clearer understanding of the current condition of the bridge in Kostomlaty. The main advantages of the system include fast installation and insights that conventional monitoring solutions cannot provide. It delivers unique data on the stress and behavior of key structural elements. In this case, we monitored stress in the steel beams and concrete deck, crack opening and closing during train crossings, and data on the current usage and remaining capacity of the bridge structure. The system supports more efficient maintenance planning and ensures the structural safety of the bridge.

Správa železnic, government agency

CLIENT

Správa železnic, government agency

CURRENT STATE

The bridge in Kostomlaty consists of four bridge spans and three piers
The existing monitoring does not provide detailed information about the loading and dynamic behavior of the bridge during operation
The system for measuring the deflection of the structure under specific loads (e.g., train passage) was missing

EXPECTATIONS

Precise and continuous monitoring of the bridge’s load
Ability to distinguish between different types of train sets
Capability to measure the deflection of the bridge structure in real time
Minimization of interventions in the bridge during sensor installation
Long-term reliability of the monitoring system
Engineering-grade output: stress in key components, crack progression tracking, data on utilization, reserves, and structural reliability

Správa želenic needed detailed information about the load-bearing capacity and stress of the bridge structure to prevent damage or failure. We implemented a modern monitoring system with the integrated analytical platform TwinBridge.

Key outcomes

Continuous real-time bridge load monitoring enabling immediate response.
Sensor installation using fast-curing adhesive – no structural intervention required.
Artificial intelligence identifies train types and tracks dynamic loading.
Advanced nonlinear analysis combined with AI provides unique data on stress in key load-bearing elements, crack progression, and overall load capacity of the structure.

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Achieved results

The monitoring results confirmed that the bridge in Kostomlaty is structurally stable and reliable in the long term. Thanks to the collected data, the Railway Administration is assured of safe operation even when heavy train sets pass over.

TwinBridge provides high-quality data for maintenance and investment planning, early detection of potential risks, and flexible responses to changes in load or the behavior of the structure. All data is available on a user-friendly online platform, which facilitates analysis and supports informed decision-making.

The entire project also confirmed the advantages of advanced monitoring with minimal intervention in the structure and maximum added value for transportation infrastructure management.

Note: The results were achieved as part of the project “Digital Twin for Enhancing the Reliability and Durability of Concrete Bridges,” funded with state support from the Technology Agency of the Czech Republic and the Ministry of Transport under the TRANSPORT 2020+ Program.