Login | Search

  • Home
  • Products
    • LimitState:RING
    • LimitState:GEO
    • LimitState:SLAB
    • LimitState:FORM
    • LimitState:FIX
  • Services
    • Consultancy
    • Training
    • Support
    • Education
    • Webinars
  • News
    • News
    • Newsletter
    • Events
  • About
    • The Company
    • Our Clients
    • Careers
    • Contact Details
    • Online Query
  • Client Area

Learn more

LimitState:RING

  • About

  • About LimitState:RING
  • Product brochure  pdf
  • What's new in v3.0?  pdf
  • Publications  pdf
  • Release history
  • Download

  • Download LimitState:RING
  • Purchase

  • Prices & licensing £ / € / $
  • Purchase
  • Knowledge Base

  • User manual  pdf
  • Detailed description  pdf
  • Webinars
  • Documentation
  • Examples
  • Example files  LimitState:RING - Download example files
  • Experimental Validation
  • Industrial Validation
  • FAQ

About LimitState:RING

LimitState:RING - Moment diagram

LimitState:RING - 3-centered arch

LimitState:RING - Multi-span analysis

LimitState:RING - 2-span bridge

LimitState:RING - Support movement analysis

LimitState:RING - 4-hinge mechanism

Benefits

Flexibility and Power

  • Analyse single or multi-span bridges with no fixed upper limit on the allowable number of spans
  • Automatically identify the critical failure mode even if:
    • only a single span is involved
    • sliding is involved
    • modelling multi-ring arch bridges
  • Define and solve for multiple load cases
  • Automatically detect 'passive' pressures - analyse deep and multi-span arch problems without difficulty
  • Model the presence of arch backing material

Ease of Use

  • Easy to use wizard system for simple and speedy model definition
  • Modern, intuitive interface with an interactive modelling environment
  • Comprehensive library of standard road and rail vehicles
  • Property editor allows quick querying and modification of model properties
  • 3D graphical output for better understanding
  • Automatic report generation

Specify Local Properties

  • User-definable arch and backfill profiles
  • User-definable individual block weights, masonry strength, mortar loss etc.

Proven Track Record

LimitState:RING is the product of many years research effort.

  • The first version of the software was originally developed as an academic research tool in 1992, with results published in papers in The Structural Engineer and elsewhere
  • The first public versions were developed in association with Network Rail
  • Later versions were developed for worldwide use in association with the International Union of Railways (UIC)

Technology

LimitState:RING uses the 'rigid block' method of analysis, which idealizes a masonry arch structure as an assemblage of rigid blocks and uses computational limit analysis methods to analyse the collapse state only.

The rigid block analysis method is reviewed alongside semi-empirical and solid mechanics techniques in the key industry report CIRIA C656 - Masonry arch bridges: condition, appraisal and remedial treatment. The report states that the rigid block technique is:

quick and reliable for a significant range of bridge configurations... a very versatile tool...

a significant improvement from basic limit analysis formulations

Legal & Privacy policy | Site map
© LimitState Ltd | Tel: +44 (0)114 224 2240 | E-mail: info@limitstate.com
Hosting by Memset Dedicated Servers