Hi I have a question regarding Fatigue stresses in Leap Bridge Steel.
I have several locations along the girder that fatigue is the controlling design.
Based on the calculations reported, it appears that Leap Steel is using non composite properties to calculate the fatigue stress rather than the composite properties which is causing a higher stress to be reported than it should. The girder itself is being reported as composite and has the composite values calculated correctly.
I saw a similar question was posted about this a few years ago and wondering if this has been resolved?
Thanks
Michael
“I would like to inform you that this issue resulted in Defect 860921, and will be evaluated by the product management team for our regular SELECT updates. A Service Request has been logged so you can receive notification of changes to the status. Any other users that encounter this issue can also log a Service Request to be informed of changes.”
For more information related to Leap Bridge Steel program please check the wiki articles in the below mentioned Bentley Communities link.
https://communities.bentley.com/products/bridge_design___engineering/w/bridge_design_and_engineering__wiki/20537/leap-bridge-steel-main-page
I am finding this issue to still be present in LEAP Bridge Steel Version 22.00.04.34. The fatigue design report is displaying the fatigue live load stress range calculated using the non-composite section properties, instead of the short-term composite section properties allowed by AASHTO LRFD Article 6.6.1.2.1 - my bridge model meets the requirements of this article by having shear connectors the entire length, and the concrete deck reinforcement satisfying AASHTO LRFD Article 6.10.1.7.