• Structural health monitoring system by ZETLAB

    Structural health monitoring system can be used at any types of engineering structures: high structures, dams, and dikes, bridges, tunnels, large sports facilities, dilapidated structures, etc.

  • Structural health monitoring system by ZETLAB

    Automated control at various points of the facilities in the course of their construction and use, detection of the controlled parameters non-conformance with the set threshold values

  • Structural health monitoring system by ZETLAB

    ZETLAB Company is ready to provide you with a turn-key system, design and working documentation, installation supervision, start-up and commissioning works.

Structural health monitoring system

Automated stationary structural health monitoring system (SHM) is a subsystem of buildings and structures control system which has been developed in accordance with the applicable requirements of the corresponding standards. It is used to detect a transition of the building state from operational into the state of failure, that may eventually lead to fatal accidents.

Structural health monitoring system (SHM) allows to timely detect ground base bearing capacity change as well as to reveal changes of structural elements and to inform the monitoring service of critical changes in the bearing structures parameters.

Structural Health Monitoring system is a set of subsystems that are used for the controlled parameters monitoring in real-time mode.

Depending on Customer’s requirements, the Structural Health Monitoring System may include all types of the monitoring systems or a particular task-specific set of the monitoring systems.

The number of the control points depends on the structure of a particular facility, thus, these parameters are calculated in the course of system development based on the design documentation.

Along with large-scale distributed monitoring systems for industrial facilities, there also exists a basic configuration of SHM kit, which includes:

Basic package of structural health monitoring system (also referred to as SHM basic package) is a user-friendly, compact and comprehensive system for buildings diagnostics. Structural health monitoring system basic package price: from 6 160 USD

Basic package of the structural health monitoring system can also be used as a portable system for periodical short-term measurements of the following parameters:

  • monitoring and evaluation of acceleration and vibration level;
  • basic modes and damping ratios calculation;
  • structural elements relative deformation control.

Portable bridge structures control system by ZETLAB  is a portable recorder and a set of intelligent digital sensors to be mounted on the controlled structural elements and ZETLAB Software package to be used for processing and analysis of the accumulated data.

Information for project engineers

The SHM has a hierarchical structure and has the following components: digital sensors, data acquisition modules placed inside of electrical cabinets, information computation system components.

Selection of the required cable type to be used for measuring lines should be based on the total length of the measuring line, power supply source used and the number of digital transducers in the measuring line. You can use the calculator below to simplify the design process.

Configuration of measuring line requirements
Measuring line: power supply voltage, V
Total length of the measuring line, m
Measuring line: number of transducers, pcs
Parameters, that are not subject to change
ZET7xxx transducer power, W 0.5
Admissible decrease of power supply voltage at the end of measuring line 20%

Basic computational data for selection of cable type and power supply voltage
Admissible value of the measuring line cable volume resistivity (max), Ohm/km
Admissible cable class for the measuring line (max)
Measuring line cable conductor diameter (min), mm
Measuring line cable conductor cross-section (min), mm2.
Required measuring line power supply level (not less than), W
Additional computational data
Total power of the transducers in the measuing line, W
Voltage at the far end of the measuring line, V
Current level in the electrical feed circuit of the measuring line, A
Overall circuits resistance (Upow+GND), Ohm
Resistance of feed circuit conductor, Ohm
AWG Diameter, mm Cross-section area, mm² Resistance per unit length, Ohm/km Weight per unit length kg/km
4 5.189 21.15 0.815 188
6 4.115 13.3 1.297 118.2
8 3.264 8.37 2.061 74.38
10 2.588 5.26 3.277 46.77
11 2.304 4.17 4.134 35.05
12 2.052 3.31 5.217 29.46
13 1.829 2.626 5.562 23.36
14 1.628 2.084 8.268 18.45
15 1.45 1.652 10.43 14.69
16 1.29 1.309 13.19 11.62
17 1.151 1.039 16.57 9.24
18 1.024 0.826 20.96 7.32
19 0.912 0.652 26.41 5.8
20 0.813 0.519 33.14 4.61
21 0.724 0.412 41.99 3.66
22 0.643 0.325 53.15 2.89
23 0.574 0.259 66.6 2.31
24 0.511 0.205 84.32 1.82
25 0.455 0.163 106.3 1.44
26 0.404 0.128 134.5 1.14
27 0.361 0.102 168.8 0.91
28 0.32 0.081 214.2 0.72
29 0.287 0.065 266.4 0.58
30 0.254 0.051 341.2 0.45
31 0.226 0.04 427 0.359
32 0.203 0.032 538 0.238
33 0.18 0.025 679 0.226
34 0.16 0.02 856 0.179
35 0.142 0.016 1086 0.142
36 0.127 0.013 1361 0.113

Should you have any difficulties with selecting necessary components for your system, fill in the questionnaire and send it to zetlab@zetlab.com. Our specialists will assist you in selecting the necessary system components for your particular task.

Structural health monitoring system - Cloud monitoring solutions by ZETLAB

Cloud monitoring technologies

ZETLAB Company has developed a data server used for storage, calculation, and processing of the measurement results received from the controlled facility with further data transfer to the customer.

When developing a monitoring system used for control of various facilities using ZETLAB measuring instruments, the Customer can select a channel for data transfer from the measuring lines to the data server.

Information for project integration managers

Structural health monitoring system can be used in standalone mode or be integrated into an already existing monitoring system.

Among the additional advantages of the SHM system, one should mention the possibility of integrating third-party transducers into the structure of measuring lines.