Steel roof over reinforced concrete

[civil_kemal]

I need to make a 25 meter span steel roof on a reinforced concrete structure. For architectural reasons, I cannot directly attach beams to reinforced concrete columns. I need to model the roof by raising it with a steel column. I modeled the column beam connection as shown in the picture. Do you think this combination is appropriate? Also, when I model the roof alone and model it on a reinforced concrete structure, the joint reports are very different from each other. Which one should I consider? I am sending the data that I modeled as a single steel roof for you to examine

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[nurgulkaya]

Hello there; Your column-beam connection is suitable as a connection type, but geometrically, I recommend reducing the h1 parameter of the joint and optimizing it. The case that the union reports are different can only be in the column foot joints. The reason for this is that the concrete class used for crushing in the column foot joint is taken from the foundation. If there is no basic input, the program warns that C20 will be used. For this reason, if the concrete classes of your reinforced concrete column concrete and your foundation in the roof model are the same, the results will be the same. Of course, you need to make sure that you model the combinations exactly the same. Please check. Good work.