LimitState.RING.v3.2.a.20141 LimitState:RING 3.0 is the latest version of the popular software product for masonry arch bridge analysis - designed from the ground up with the needs of professional engineers in mind: Modern, intuitive user interface Multi-ring, multi-span masonry arch 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