Structural Health Monitoring: optimum management with less disruptions

Increased traffic and an ageing infrastructure are making huge demands on our civil engineering structures. Strukton Survey & Monitoring provides the knowledge and equipment required to diagnose and predict the lifespan of those structures, enabling you to more effectively assess management risks, optimise maintenance plans and minimise disruption.

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Management based on availability

From the perspective of civil engineering, the big question concerns our ability to manage on the basis of availability. 'Does the structure (still) meet the requirements?’ Management & Maintenance, Asset Management, Life Cycle Management and Structural Health Monitoring are the key concepts of modern civil engineering management.

But how do we translate this into practice? Aspects such as technology, information, visualisation, availability data and organisational structure need to be developed from a management perspective. Strukton Survey & Monitoring provides the parameters on which you can base your choices for management and maintenance in civil engineering, with the focus on civil engineering structures.

Large-scale research

What started at Strukton Survey & Monitoring as a 'bridge monitoring system’ during maintenance work at the Hollandse Brug, has developed into large-scale research supported by the STW technology foundation. The project, set up in part by Strukton, is called IS2C: Integral Solutions for Sustainable Construction. It combines research in the fields of Sensing & Monitoring, Degradation mechanisms and Materials & Structures (http://www.stw.nl/programmas/is2c)

Knowledge sharing

Strukton Survey & Monitoring has extensive knowledge of:

  • Sensor technologies
  • Data mining and data processing
  • Design and realisation of civil engineering structures
  • Integral measurement solutions providing input for efficient management

The future

In cooperation with universities, research institutes, the business units Strukton Civil Asset Management and Strukton Traffic Technology and business partners, we are addressing the issue of how measurement and monitoring systems can contribute to the management and maintenance of the infrastructure in the Netherlands.

Functions

The Bridge Monitoring System performs two types of monitoring:

  • Condition monitoring – geared towards the physical variables of construction and environment, making it the basis for Life Cycle Management within Asset Management
  • ‘Weigh-in-Motion’ monitoring – geared towards the measurement of traffic movements and loads (using structure response) and giving us an insight into:
  • traffic speeds
  • vehicle weight and axle loads
  • the number of vehicle movements
  • congestion detection

Specifications

Depending on the function(s) being used, the following variables can be measured, amongst others:

  • Strain measurement of bridge deck and beams (tension in structure)
  • Vibrations (frequencies, movement, vibration rate and acceleration)
  • Temperature
  • Weather conditions
  • Movement of supports and joints
  • Traffic movements (counting and visualisation)