LimitState

Stand B13
LimitState Ltd is a leading developer of innovative engineering software solutions, empowering engineers to tackle complex challenges with confidence and efficiency. At the core of the company's offerings is LimitState:RING, the industry-standard tool for masonry arch bridge analysis. Used by engineers across the globe, LimitState:RING combines advanced limit analysis techniques with a highly intuitive interface to enable fast and accurate assessments of arch bridge stability and load capacity. Its ability to model complex geometries and loading scenarios makes it an invaluable tool for ensuring the safety, reliability, and longevity of these critical structures. Beyond LimitState:RING, the company has developed a suite of specialised tools to address various engineering needs. LimitState:GEO, for instance, simplifies the process of geotechnical stability analysis using rigorous and transparent optimization methods. Each product reflects LimitState’s commitment to creating user-friendly, technically robust solutions that save time and resources while delivering reliable results. LimitState’s expertise is backed by decades of research and practical experience, ensuring that their tools are built on solid engineering principles and meet the highest industry standards. The company prides itself on its close collaboration with customers, ensuring that its software continues to evolve in response to real-world engineering challenges. Whether addressing infrastructure preservation, structural design, or geotechnical analysis, LimitState provides the tools engineers need to deliver effective and sustainable solutions.
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Documents

Videos

LSWEB23-7 - Introducing LimitState:RING 4. Better Masonry Arch Bridge Analysis
Discover some of the exciting features of LimitState:RING 4, including: * Highly flexible definition of bridge geometry, with an enhanced wizard and CAD import functionality to handle the most geometrically complex structures. * Enhanced handling of vehicle loading scenarios, including new automatic vehicle positioning functionality to expedite identification of critical load cases. * A Permissible Limit State (PLS) analysis mode to assess bridge performance under working loads. * Template file functionality to speed up the assessment of bridges with shared properties or project settings. * A command-line interface to support batch analysis. * Numerous other improvements, including an expanded vehicle database, new pre-solve diagnostics, and a greatly enhanced software user interface. In this 30-minute webinar, Dr Tom Pritchard and software originator Prof. Matthew Gilbert use practical examples to illustrate many of the new software features. Gain insights into how this significant upgrade can help you undertake more informed masonry arch analysis, helping to more reliably assess these critical components of our transport infrastructure.
LSWEB23-8 - Assessment of Highway Masonry Arch Bridges to CS454 & CIRIA C800 with LimitState:RING 4
n the UK in 2019 National Highways introduced a new standard for the assessment of highway bridges and structures, CS 454. In 2022 CIRIA published a long-awaited guidance document on the assessment of masonry arch bridges, CIRIA C800. LimitState:RING 4, the latest version of our industry-leading masonry arch bridge analysis software, offers a range of features to help streamline the assessment of masonry arch bridges in accordance with CS 454 and CIRIA C800. In this webinar, Prof. Matthew Gilbert outlines how LimitState:RING 4 simplifies the process of highway bridge assessment, including: * How use of the Permissible Limit State (PLS) facilitates more discriminating assessment of the performance of bridges under working loads. * Analysis of both the PLS and Ultimate Limit State (ULS) using LimitState:RING 4. * Use of built-in CS 454 load vehicles. * Use of template files incorporating CS454/CIRIA C800 specific settings. * Batch analysis using the command line interface. Practical examples are used to highlight the key features of LimitState:RING 4 that facilitate practical assessment of bridges in accordance with CS 454 and CIRIA C800. Discover how the software can streamline your workflow while delivering valuable insights into the likely behaviour of masonry arch bridges.
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