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Hollow building relative floor drift error
- Thread starter azoo
- Start date
Hello My suggestions; I fixed the project. Fully rigid diaphragm is being solved, you need to add ladder loads, correct geometry errors. But if you choose semi-rigid diaphragm solution "relative story drift gives too high error" you need to increase system rigidity. Unver ÖZCAN
Thank you for your interest and concern. You have reached the solution by inserting the S14 column into the side parcel, unfortunately, such a solution is not possible. I don't know if this contributed to the system or if it was accidental. ? Even though I tried very hard, I was able to save the elevator curtains by doubling in the same direction. In this system, I think why there is a relative floor offset in the Y direction, because the building is a little long and hollow, what do you think? The issue of stairs is always on my mind anyway. I have been supporting and constructing ladder solutions simply as you can see in the attached project for years. But it seems as if it has no effect on the system. For this reason, I also add more to the wall load of the beams on the stairs. What do you think about these solutions? how do you solve the stairs in the system? Finally, the D7 slab is approximately 40 m2 (I could have divided it into two, but I think the two ends of the stud beams would cause more damage to the building), since the span exceeds 4 m, transverse teeth are required. Normally, after I finished the calculations and drawings of the transverse thread, I was drawing the transverse thread with my hand on the mold plan. I asked the ide authorities at the time, they gave advice in this direction. I've never done it. But I can make cassettes instead of ribs and fix the transverse gear in the system, do you think it makes a difference which is the more correct solution?
Hello again The column that seems to have entered the adjacent plot was formed while correcting the other columns. I am submitting the corrected project. Only D7 tile gives deflection error. You need to fix this. If this flooring does not give a deflection error, you can add as you say in the drawing, but if you model it as a female cassette that you will add in the middle in the drawing, since it gives a deflection error, you will get rid of the deflection error as it will transfer the load to the other direction. The last time I posted, the attic floor live load reduction and wall loads were not removed. The ladder will be supported from floor to floor and to the side curtain. If you calculate your project as a semi-rigid diaphragm, you do not need to give the ladder loads separately. It is enough to support the ladder and enter. (Usually, in the solution, I make a semi-rigid diaphragm and ladder by placing the rigidity on the mezzanine beam.) Since there is no rigidity on the right side of the building as on the left, the dimensions of the columns on the right side were enlarged to prevent translation. In such hollow buildings, it is the easiest and best solution to put enough earthquake curtains in both directions, if possible. Unver ÖZCAN