Occasionally, certain projects need specialist temporary monitoring because of their complex construction process, and the risks associated with it. This includes monitoring jacking and propping operations as well as any alterations to the structure.
We offer in-depth construction monitoring systems and services using automated monitoring technologies that are supported by manual survey techniques.
We’re specialists when it comes to unusual monitoring applications, and offer bespoke flexible and innovative systems that are tailored to each project as standard.
We’re completely independent, which means that we don’t provide design or functions, and all our monitoring is unbiased and unfiltered.
Bridge Bearing Renewal
It’s important to monitor the structure of a bridge bearing when it’s replaced. This is to ensure:
- Displacements between deck and substructure do not exceed pre-set limits
- Strain in deck does not exceed limits
- Relative positioning between deck and substructure is controlled to avoid misalignment
Props
We offer hard-wired or wireless options when monitoring props using strain gauges or load cells. Typically, the reason we do this is to verify that load readings are as they should be, with any changes to normal trends being identified automatically.
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Structural Alterations
When carrying out structural refurbishments and alterations, there are often requirements to either permanently or temporarily remove structural elements.
On both bridges and buildings, when tie rods or stay cables need to be changed, it can cause a host of issues that need careful monitoring. By monitoring the strain change in the part being changed, you can measure the load distribution. This makes it simpler for the original loads to be put back after the installation of the new component. It’s also a good idea to monitor the other structural components during this process to make sure they don’t become overstressed.
When creating new access ways in floor slabs or walls, making sure the load distribution is suitable with the current expectations is vital. A service we offer that can provide invaluable information about the pre-alteration loading regime, and design of temporary and permanent works is in-situ stress measurement.
Monitoring Approach
As part of our comprehensive end-to-end service, we can design complex instrumentation schemes and install them at your site. Whatever your requirements, we have it covered. Our monitoring instrumentation schemes can include hard-wired or wireless displacement, tilt, temperature sensors, strain, monitoring prisms and automated total stations to meet your needs.
Our software platform SAMS™ can then display this data with helpful dashboard visualisations, graphing, and reporting tools. The process can be made even more effective with the dashboard showing live-derived data, going beyond standard sensor readings.
Before any construction activity begins, pre-works baseline monitoring should be carried out so that structural responses in normal circumstances can be known.
