Sosnowiec Stadium — roof structure monitoring

Structure

Zagłębiowski Park Sportowy in Sosnowiec is a modern football stadium with a stand roof made of sheet metal on a steel truss structure. The facility is in daily use — monitoring operates continuously during stadium operation.

Challenge

The building project required structural monitoring of the roof. Commissioned by Carbo Automatyka — a subcontractor to the general contractor (Bielskie Przedsiębiorstwo Budownictwa Przemysłowego S.A.) — Ryzer designed and implemented an extended monitoring system covering full diagnostics of the steel structure.

Key requirements:

Continuous measurement of structural loads, including snow and wind loads
Monitoring of deformations and displacements of truss girders
Monitoring of column tilts and foundation settlement
Integration with the existing stadium BMS
Online dashboard with automatic safety alerts

Solution

Measurement infrastructure

The system comprises over 70 measurement points distributed across 5 roof sections, monitoring truss girders (including DZ-2, DZ-9, DZ-10, DZ-15, DZ-19) and the boiler building.

Seven sensor types were installed:

Strain gauges (O) — 16 sensors measuring steel structure stresses [MPa]
Temperature sensors (T) — 16 steel surface temperature sensors for temperature compensation
Inclinometers (I) — 14 dual-axis tilt sensors monitoring column and joint geometry
Accelerometers (A) — 12 three-axis acceleration sensors for structural vibration analysis
Displacement sensors (P) — 8 sensors measuring structural element displacements
Snow mass sensors (S) — 5 roof snow load sensors [kg/m²]
Hydroleveller (H) — foundation settlement sensor

Additionally, a weather station was installed measuring air temperature, humidity, dew point, wind speed and direction.

Platform and integration

Sensor data is displayed on a Grafana dashboard refreshing every 5 seconds. Each measurement point has defined alarm thresholds — displacement sensors display real-time safety status.

The monitoring system was integrated with the local stadium BMS via the Modbus TCP protocol, allowing facility technical staff to access monitoring data directly from the building management system.

Results