Hello there; First of all, let's summarize the subject technically: 1- There is no article in the Steel Structures Regulation and TBDY 2018 that n stiffeners placed on any column or beam contribute to the bending stiffness of the steel element and should be included in the calculation. If you think that there is an existing and overlooked article, please report the reference regulation and article, let's immediately accept our mistake and start the necessary work. 2- There is no article in the above-mentioned regulations regarding the fact that the reinforcements act as a support in the deflection calculation. 3- The main subject of the article you sent is deep beams such as bridges and viaduct beams, and the main purpose of the reinforcements here is to prevent situations such as lateral torsional buckling and body wrinkling. When you read the first entry, it is mentioned that the reinforcement contributions are uncertain. When these and similar studies to solve this uncertainty come to a point and enter the regulations, they will definitely be adapted to the program. There is no regulatory situation at this stage. 4- In the program you are using, the combinations do not have any effect on the design principles of the elements in a reversible way. Because, without entering any combination in the program, the analysis and design can be completed, the last combination can be entered, the design of the joints can be completed and the project can be concluded in this way. If we consider other programs, for example SAP2000 or ETABS, an account that you call disgrace to the customer is not made automatically in these programs. If you are interfering with your projects from outside, this is your responsibility as an engineer. Good work.
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