Help with the project

[teknikisler]

I am working on a 7-storey building project, 2 basement floors, in the 1st degree earthquake zone. In the project, it is not desired to enter the ground except for the height of the foundation. So basements are not underground. There is no rigid basement. I solved the project as attached, but it gives negative ground tension error. I need your opinions on the project. I changed the mold plan 4 times, now my head stopped. I can't see right or wrong. We cannot change the column directions much on the project. We can change the column sizes not on the short side, but on the long side. Curtains can be placed around 13 axles, 14 axles, K-5 axles, around stairs and around elevators. I deleted the upper layers because the file size is large. I need your opinions. Thanks to those who are already interested.

 

[NYILMAZ]

Is the bed coefficient really that high? You have some errors that appear in the geometry check, we recommend that you fix them. I think your beam loads are too much. Is there a wall of the same thickness and height at every point? There doesn't seem to be much to be said without the architecture. I think you have thrown your flooring loads because there is a wall on it. Do all floors have walls? Why didn't you consider applying the live load reduction factor? Your K23 beam is stuck in the horizontal beam. It looks like your ladder loads are not included in the system. We recommend that your beams average the columns. We recommend using more curtains, as you mentioned you can use the stair and elevator perimeter. We can count them at a glance.....

 

[Levent Özpak]

In the project, it would be appropriate to define P1 and P42 elements as columns due to the size of the spaces on them.

 

[teknikisler]

I changed my project design, as a result, the negative ground tension decreased to a value close to -2, if I change the raft foundation ampathment length or increase the raft thickness, there is not much change. I'm considering leaving negative ground stress out of consideration. Thank you for your comments and contributions.

 

[sereze]

Is the bearing coefficient really that high? There are some errors that appear in the geometry check, we recommend you to fix them. I think your beam loads are too much. Are there walls of the same thickness and height at every point? Too much to say without architecture nothing is visible. You have increased your floor loads because I think there are walls on it. Do all floors have walls? Why didn't you consider applying the live load reduction factor? Your K23 beam is stuck in the horizontal beam. It seems that your stair loads are not included in the system. We recommend averaging your beams over the columns. , you can use the stairs and elevator surroundings as you mentioned.. We can count them at a glance.....

HYK appears to be 0,30, where did you look at the Live Load Reduction Coefficient?

 

[NYILMAZ]

I downloaded your file. I opened it without any changes. Analysis settings menu load-safety tab in "TS498 Apply live load reduction clause The " option was unchecked. That's what I'm saying.

 

[sereze]

yes interesting, although HYK=0.3 in the floor parameters section, live load reduction item is not selected in the load-safety tab. We learned one more thing. Thanks

 

[Levent Özpak]

yes interesting, although HYK=0.3 in the floor parameters section, live load reduction item is not selected in the load-safety tab. We learned one more thing. Thanks

Hello, TS in Analysis Settings 498 Live Load Reduction and Live Load Participation Factors in the Floor Parameters are different parameters.Live Load Participation Factor(HYK) in the floor parameters is the live load participation coefficient used in the calculation of the earthquake loads ( TDY 2007 article 2.7.1.2 Table 2.7) Live Load Reduction in the analysis settings is the option specified in TS 498 Article 13 to reduce the live load on the structural elements such as columns, shear walls, etc. Good work

 

[proisa]

The live load participation coefficient is only mentioned in the Equivalent Earthquake Load method in the regulation. Of course, as a result, if the earthquake forces in the mode combination method are below a certain rate compared to those at the equivalent earthquake load, the loads are increased. (Item 2.8.5 - Eq.2.16) Is the Live Load Participation Coefficient also used in the mod combination method? In the Mod Combination method, do we need to manually intervene in HYK on the ground floor in buildings whose ground floor is shop and upper floors are residential? Thanks...

 

[Levent Özpak]

In the regulation, the live load participation coefficient is only mentioned in the Equivalent Seismic Load method. As a result, if the earthquake forces in the mode combination method are below a certain ratio compared to those in the equivalent earthquake load, the loads are increased. - Eq.2.16) Is the Live Load Participation Coefficient also used in the mod combination method?Do we need to manually intervene in HYK on the ground floor in the buildings whose ground floor is shop and upper floors are residential?Thanks...

Hello, Floor The Live Load Participation Coefficient defined in its parameters is also used in the Mode Combination method.TDY 2007 Table 2.7 requires HYK to be 0.3 for buildings such as residences, workplaces, hotels, hospitals, etc. Good work

 

[yunussacikk]

yes interesting, although HYK=0.3 in the floor parameters section, the live load reduction item is not selected in the load-safety tab. We learned one more thing. Thanks

Hello, TS 498 Live Load Reduction in Analysis Settings and Live Load Participation Coefficients in Floor Parameters are different parameters. Live Load Participation Coefficient (HYK) in the story parameters is the live load participation coefficient used in the calculation of earthquake loads. ( TDY 2007 item 2.7.1.2 Table 2.7) Live Load Reduction in the analysis settings TS 498 Article 13 column, shear wall etc. It is the option that the live load on the components can be reduced. Good work

hello, can we see that the live load reduction coefficient is used in the report?

 

[NYILMAZ]

Get a report, enter the Analysis settings section, check the load security section, you will see it there... See attached photo. Note: For optional reports, Analysis Settings Summary Report must be active.