MAURER provided a seismic protection system for 500 years for the largest mosque in Algeria, which is also the third largest in the world. The total area of the mosque is 400,000 m². The key goal of the seismic protection developed for this project was to fully protect the structure and people visiting the mosque from small and medium earthquakes and increase the structure's resilience to strong ones.
As part of this project, MAURER supplied 246 SIP Pendulum Bearings and 80 adaptive hydraulic dampers. The bearings horizontally isolate the structure from the foundation, and the dampers ensure the possibility of horizontal displacement of the structure (up to 655 mm).
The key functions of the SIP bearings:
As part of this project, MAURER supplied 246 SIP Pendulum Bearings and 80 adaptive hydraulic dampers. The bearings horizontally isolate the structure from the foundation, and the dampers ensure the possibility of horizontal displacement of the structure (up to 655 mm).
The key functions of the SIP bearings:
- Bearing the vertical loads of the structure
- The sliding function of the bearings allows for horizontal displacement of up to 655 mm
- Isolation of the structure from the foundation
- Automatic return of the structure to its initial position after any seismic displacement
- The hydraulic dampers are installed along and across the structure. The maximum reaction force is 3,065 kN.



