Filler beam deck bridge

[Anonymous]

Hi and thank you in advance.

My question is regarding how to model, in 3d space, a filler beam deck where the section of the deck is made with a RC deck with inside a number of steel beam, like IPE or HEA shapes.
So, is it possible to create a composite RC-STEEL element to rappresent this situation, or, maybe, is there another way to obtain the same result?

Regards.

Federico

[Anonymous]

With the studying different post that I've found in the forum (https://forums.autodesk.com/t5/robot-structural-analysis-forum/composite-action/m-p/3382477#M3526; h...), I think to have understand how I can procede.

For the steel beam I will adopt the criteria shown in figure 1, where I will modify the value of the inertia for consider the real position of the beam.

For the RC beam, I will use an orthotopic plate where I will riduce the value of longitudinal E because I want that the deck has just ripartiton function in trasversal direction.

In figg. 2-3 is shown how the model is composite and in figg. 4-5 the results of the analysis due to self-weight.

Can you help me to understand if there are some errors.

Thank you in advance.