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LimitState Newsletter January 2010
Welcome to the LimitState newsletter where you will find news about LimitState software and short notes on technical features. This month we have an example of the use of 'cutoff' material models in LimitState:GEO, and a guide to the use of support movements in LimitState:RING.
When we launched LimitState:GEO in early 2008, we prioritised SI Units. With the latest version, the user can switch between Metric (kN, m) and Imperial (lb, ft) units. Erik Funegard of our US distributor GEMSoft says,
LimitState:GEO has had a very good reception among our geotechnical customers. Everybody, without exception, is impressed by the combination of simplicity of use and sophisticated analysis, allowing the engineer to analyze far more alternatives than previously possible.
The 'Cutoff' model in LimitState:GEO has many uses in modelling geotechnical problems. In this article two applications will be considered:
- the modelling of a tension crack behind a retaining wall and
- modelling a propped retaining wall.
Read more about the use of Cutoff materials in LimitState:GEO...
Retaining wall collapse mechanisms (one propped) modelled with LimitState:GEO
LimitState:RING 2.0 is most commonly used as a tool to rapidly assess bridge ultimate load carrying capacity, but the inbuilt ‘support movement mode’ can provide valuable insights on pre-collapse bridge behaviour. Using this mode, users can explore the likely causes of crack patterns seen in bridges in the field, and also examine potential load paths in a given bridge.
Read more about how to set up and solve a simple single span bridge problem using support movement mode...
Lines of thrust and hinges in loaded arch bridge subject to outward support movement modelled with LimitState:RING