2023 USE CASE
Structural Health Monitoring
of Cable-Stayed Bridge with
LoRaWAN
®
SITUATION
Wireless Structural Health Monitoring (SHM) of cable-stayed
bridges requires sophisticated and reliable sensor systems.
These monitor the structural health of the bridge by detecting
structural damage and evaluating structural performance. This
monitoring data can then be used to modify a finite element
model of internal force.
A sensor system with a wide frequency range is required for
Structural Health Monitoring. The system should be able to:
• Measure the tension of the cables
• Monitor pylons, cables, and decks
• Recognize changes in these parameters
Once a system has been chosen, any existing wired sensor
network needs to be replaced with a wireless network with the
corresponding capabilities.
BENEFITS
The solution has a number of benefits, including:
• Cost-saving of more than 50%
• Increased efficiency in the monitoring process
• Optimized maintenance scheduling and
determination of serviceability
CHALLENGE
The main issue with current wired Structural Health Monitoring
networks is that they are too expensive to install and
maintain and take a lot of time to build. As a result, there is a
critical need to replace these systems with robust and less
expensive wireless sensor networks.
SOLUTION
To address this challenge, Dongil Engineering
Consultants Co. and TEKTELIC have created a wireless
solution that enables long-term monitoring of cable-stayed
bridges.
For the system, Dongil Engineering Consultants
developed a smart sensor node that can collect and
process signals from various sensors. The data is
transmitted using TEKTELIC KONA Macro IoT Gateways
for LoRaWAN
®
.
KONA Macro IoT Gateways are a cost-effective and
compact LoRaWAN
®
gateway – able to answer a long-
existing challenge in the civil engineering sphere.
To organize the Structural Health Monitoring system on a
cable-stayed bridge, the gateways are deployed right to
the bridge stays and walls.
Smart
Structures
Product
COMPANY INFO
TEKTELIC Communications, Calgary AB, Canada
https://tektelic.com
Email: info@tektelic.com
Dongil Engineering Consultants Co., Songpa-Gu, Seoul
http://www.dongil.co.kr/default/eng/index.php
