If metallic reinforcement is chosen, the Simplified AASHTO or the Coherent Gravity methods can be selected. ![]() In AASHTO 2017-2020, the user may select Simplified AASHTO (the seminal approach updated for seismicity and external stability) or Simplified Stiffness (an empirical approach to internal stability) when working with geosynthetics. Corrosion of metallic reinforcement over the life span of the wall can be assessed. It allows for reduction factors (construction damage, aging and creep) associated with polymeric reinforcement. MSEW+ can be applied to walls reinforced with geogrids, geotextiles, metal mats or metal strips. See limitations related to the NCMA option at the end of this section. MSEW+ can follow AASHTO ( ASD or LRFD) or NCMA design guidelines. ![]() Here are some of the features of program MSEW+ (to get a sense of ‘look and feel’, please go to Screenshots): ![]() It enables the designer to conduct comprehensive analysis, including internal, external and global stability. Program MSEW+ is an interactive, graphically rich program, allowing the user to easily explore various design options or conduct forensic analysis.
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