Hello,

I am currently doing my final year work at the Swiss Federal Institute of Technology in Lausanne (EPFL). The project consists of creating a BIM model of an existing bridge in order to verify its structural safety by updating the traffic flow and the bridge characteristics. I would like to contact you because I have some questions:

- The bridge I am working on is a MIXED bridge (steel girder-concrete deck). On Allplan Bridge 2021, it is apparently not possible to perform a structural analysis for composite structures. Is this under development? If so, when do you think it will be ready? If not, do you have any other way of making connections between concrete and steel?
- As the bridge is an existing structure, is it possible to change the start date of the construction to a date in the past? (the bridge dates from 1966)
- Are you developing connectors such as Speckle to facilitate interoperability between BIM software?

Thank you in advance for your feedback

Have a nice day

Best regards

Pablo Cattin
Master project student (EPFL)