New Floor on Reinforced Building.

S

serky

New Member
Hello, In the attached project, an existing one-storey building with a partial basement was entered, performance analysis was made, then sheathing was added, and then analysis and performance analysis were made again. Then, a new floor was added on it and analysis and performance analysis were made. The result is Life Safety, and there is no error in the Report. But the overall report has errors with the existing structure. For example, the foundation does not save. Is the path followed above correct? Is it enough to ensure the life safety of the reinforced and newly added building? Should other bugs be fixed as well? For example, the fundamental one. Also, because the existing beam reinforcements are not known, they were not entered, I think that if entered, this will give an error of insufficient reinforcement in these beams.
 
Greetings First of all, let me state that I have made my comment with the assumption that you have made the relevant strengthening project preparation stages in accordance with the regulations and acceptances. Errors in the static report output are not looked at in a structure that meets the regulations regarding performance analysis. Because the two reports are different from each other. The only thing you should consider is to check whether it provides the relevant performance. The stages of preparation of the project are determined by the relevant regulations. In this context, the quality and proportions of the materials used in the load-bearing elements in the building should be determined by appropriate experiments and determinations, and the project should be prepared in the light of these determinations. It should be known that the building was built when the regulation was in effect, and what quality and proportion of material was used in which carrier element. The knowledge level of the building should be determined in this way. Let's assume that the building was prepared in the light of the 1975 regulation. In order to find the amount of reinforcement that should be used in each carrier element according to this regulation, you want to find the minimum amounts that should be used in the beams, suppose before the analysis is made. What you have to do is to select all floors from the reinforced concrete beam tab before doing the general system analysis, and you can find the amount of reinforcements by simply pressing the reinforced concrete button. It is necessary to provide the relevant performance analysis conditions in the regulations regarding the preparation of reinforcement projects. Best regards
 
Thank you for your interest. I understood the situation regarding the existing structure. However, when a new floor is entered and reanalyzed after the reinforcement is made, there are no problems with the new floor in the general reports, but as I said, the problems related to the existing structure and which already exist without the new floor are included in the report. With this new floor added, should we consider the retrofit report?
 
The performance analysis report should be the thing you should consider in any arrangement related to a finished building. I can make a statement on this subject. Whether a finished building can carry a new floor to be added on top of it and how the related new floor will affect the performance of the building can only be revealed as a result of the performance analysis. When a new building is modeled, all relevant floors are subjected to loads according to the conditions determined in the regulation, and in the analysis to be made. the structure is modeled. When you make an analysis of a 3-storey building here, the reinforcement amounts of the said floors come out as a result of the calculation and the production is made according to this calculation. If you design this structure as 4 floors instead of 3 floors, the loads on the structure will differ and the amount of reinforcement and sections that will emerge as a result of the calculation to be made may differ. .we can draw a conclusion from here. You are not in a position to interfere with the cross-section and reinforcement amounts of the 3 floors in question. Therefore, when you add floors, you should check whether the structure provides the relevant performance after the static analysis to be made. these terms are available at tdy 2007, best regards
 
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