Heikki Lilja from HLC, Finland, will present a topic about structural health monitoring of bridges based on the abstract shown further below.
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The Forgotten Giants: Behavioral Challenges in Older Cable-Stayed Bridges Under Today’s Load Demands
In recent years, public confidence in infrastructure safety has declined, especially after bridge failures or media coverage of near-misses. Many infrastructure owners face the challenge: “Is my bridge still safe to use?” Without solid data, the default is often early replacement, leading to premature capital expenditure and public scepticism about asset management.
Monitoring helps you increase public trust by actively and transparently demonstrating that your structure behaves as it always has — in terms of stresses, deformations, and displacements. This reassures stakeholders, mitigates public concern, and shows that safety is managed with precision, not assumptions.
The underlying chain of thought is that if the structure behaves as before, there have not been major changes in it, and it can be deemed to work as before. Early signs of major failures can be caught with well-positioned sensors.
As replacement costs rise, the value of accurate analysis grows. With the increasing availability of cost-efficient, novel sensors and expert-level AI Agent analysis, we are rapidly closing the gap between monitoring costs and the value gained. As we gather more data from monitoring projects, we will use transfer learning to teach our AI models to become even more precise, efficient, and tailored.
The first major projects in HLC Analytics include two large suspension bridges with spans of 220 m and 125 m. The longer-span bridge was used to develop the first version of the dashboard over 16 months of daily data analysis. This process revealed numerous behavioral traits that had previously remained hidden from the human eye. The system has issued multiple alarms for major loading events and changes in behavior — including early warnings of non-critical anomalies that, while not structurally urgent at present, could develop into real problems over time.
We know that the best products are customized. That’s why we listen carefully to each client and adapt the dashboard to their specific needs. The goal is simple: make the experience intuitive and easy, ensuring valuable insights are always within reach — whether you’re a technical expert or a non-specialist decision-maker.
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