LIMITSTATE RING 2026
LimitState RING is the popular software product for the analysis of masonry arch bridges - designed from the ground up with the needs of professional engineers in mind:
- Modern, intuitive user interface.
- Multi-ring, multi-span analysis (no need to balance thrusts).
- Use a wide range of built-in and user-defined arch profiles.
- Include local defects such as mortar loss and weak masonry.
- Undertake support settlement analyses.
- View moment, shear and normal force diagrams.
- Allocate separate properties to nearsurface and deep fill.
- Model reinforcement.

LimitState RING uses rigorous mathematical optimization to directly identify a wide range of potential modes of response, including those involving:
- Hinging and/or masonry failure.
- Radial sliding.
- Ring separation.
- Single or multi-spans.
- Support movement.