https://communities.bentley.com/products/geotech-analysis/f/forum/249922/earthquake-pile-raft-foundationI am working on a project that requires the application of earthquakes on the pile raft foundation. When I entered the earthquake on the basis of a surface-prescribed displacement represented by acceleration, the results showed a high displacement ofen-USTelligent Community 12https://communities.bentley.com/thread/781263?ContentTypeID=1Mon, 11 Sep 2023 07:10:39 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:01619593-2f3e-4c36-8e04-cd60f051a68bStefanos Papavasileiou<p>Dear Mohamed,</p> <p>An earthquake motion is typically applied at the base of the model and not directly on the raft. However, as my colleague mentioned, this addresses designers and how you can do that, but I recommend you check this webinar:&nbsp;<br /><a href="https://learn.bentley.com/app/VideoPlayer/LinkToIndividualCourse?LearningPathID=113626&amp;CourseId=132352&amp;MediaID=5020454">https://learn.bentley.com/app/VideoPlayer/LinkToIndividualCourse?LearningPathID=113626&amp;CourseId=132352&amp;MediaID=5020454</a></p><div style="clear:both;"></div>https://communities.bentley.com/thread/781158?ContentTypeID=1Fri, 08 Sep 2023 17:19:21 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:7afb085a-f16e-4cfc-b8a9-27010356a95dFaseel Khan<p>Thank you for your post. As this addresses a question to the whole geotechnical community, I leave it open to our fellow geotechnical engineers to comment based on their experience.</p><div style="clear:both;"></div>