LimitState:RING is the version of the highly successful RING software for the analysis of masonry arch bridges. In use by major consulting engineering companies universities and bridge owners across the world LimitState:RING provides engineers with the level of flexibility and capability associated with finite element packages yet it is as simple and intuitive to use as traditional assessment methods. LimitState:RING has been developed in association with the International Union of Railways (UIC) and the software has been extensively validated against laboratory test data accumulated over the last few decades.

LimitState:RING  is 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