Raft floor tension control with or without beams and other

[basakhasan]

The 14-floor building project that we will start in the company I work for; I tried to model and solve it in idecad static demo in order to learn and produce alternative solutions. I don't have a license but I'm considering getting one. I would be glad if the forum members, our experienced engineer elders and idecad family can help to solve my questions. 1. Do the object connections have to be connected to the red dots (are they node points?) that are active when the objects are marked, or is it enough to be stuck in any way? 2. Is it possible to define window and door gaps to the beams? Does it help to define the project to the real solution? 3. Is there a need for a separate definition for roof loads? 4. The rib gaps are not always the same, is this a problem? 5. There is an M error in the beams, even if I enlarge the section in one direction, the error is not resolved. 6. Is there any problem in making superstructure interactive solution in rafter raft system? 7. What kind of modeling should be done for the elevator curtain foundation? 8. What should be considered in interpreting the raft soil stress analysis results (according to the ground survey report, the ground safety stress is 36 t/m3, but I am considering taking 30 t/m3 to stay on the safe side, the ground bearing coefficient can be between 3000-4000 t/m3) 9. In my trials, choosing concrete grade c25 or c30 did not affect the analysis results and sections much. Does this choice mostly affect the brittle or ductile behavior of the structure? Is there such an analysis in the program? 10. Link to download the model

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. If there is a design error you see, I would appreciate it if you tell me. There were many questions, but when I needed help, I wrote it, thank you Hasan BAŞAK Civil Engineer KTÜ 2007

 

[sereze]

Re: raft floor tension control with or without beams and di 1- It does not have to be connected, but it would be better if you connect it, you will be comfortable when creating a floor. 2- Space cannot be defined for the beams 3- We enter the live load value of the roof differently

 

[cakilomer]

Re: raft floor tension control with or without beams and di 4. Ensuring rib continuity makes you comfortable while printing. Design your ribs according to the warnings specified in the geometric control. 5. M error in the beams is mostly caused by the irregularity of the system. To solve this, measures can be taken to reduce the moments coming to that beam. 6. Building foundation interaction is foreseen for beamless raft 7. See elevator shaft videos posted in the forum. 8. In the ground report, the safety stress is already divided by a certain safety factor, I think there is no need for this. 9. The C25 C30 system of influences affects the column-beam junctions of many things, after all, it is the concrete that carries the structure. Use the 3d framework to examine the behavior of the structure. Best regards

 

[Levent Özpak]

Re: raft soil stress control with or without beams and di

... If there is a design error you see, I would appreciate it if you tell me Hasan BAŞAK Civil Engineer KTÜ 2007

Hello, The findings and suggestions for data entry in the project are generally as follows. *The foundation system created is definitely wrong. In the raft-free raft foundation system, the borders of the raft slab should be created using only the slab edge. The effects of columns and curtains stepping on the raft slab are not taken into account. Since the curtains are not leveled, it would be appropriate to create the space so that it remains inside the curtains.In addition, there is no need to define a separate floor just for the space.*Since there are no basement perimeter curtains in the 1st basement floor, it is appropriate to enter the upper rigid basement floor number -2. It would be appropriate to define the calculation beams continuously.We recommend that you review the information given in the link below.

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*D41 tile bounds incorrectly. With the Modify/Object Edit/Object Trim Method command, change the trim algorithm of the left end of the K10 beam and place the tile. Good work

 

[basakhasan]

Re: raft floor tension control with or without beams and di hello, thank you very much for your answers, I could not fully understand the error in the foundation system, I drew the raft slab edge to solve it separately with and without beams. Also, which values should we pay attention to in the 3d framework for soil stress control? Also, you said that it would be appropriate to enter the upper rigid basement floor number as -2, I couldn't understand that either, thank you.

 

[Levent Özpak]

Re: raft floor tension control with or without beams and di

hello thank you very much for your answers, I did not fully understand the error in the foundation system, you can separate the raft slab edge with and without beams. I drew it to solve it. Also, what values should we pay attention to in the 3D frame for soil tension control? Also, you said that it would be appropriate to enter the upper rigid basement floor number -2, I couldn't understand it, thank you

A closed area was created with a continuous foundation on the outer axles. Correct data The closed area should be formed with the floor edge for the entrance. Regarding the upper rigid basement floor number, TDY 2007 item 2.7.2.4 can be examined. The raft ground stresses can be examined from the color scale according to the selected loading combination.

 

[basakhasan]

Re: raft floor tension control with or without beams and di thanks, I guess this is beamless raft solution, are you saying that for the rafter solution with beams, the sides will not always be returned to the foundation? otherwise how do you do it?

 

[Levent Özpak]

Re: raft floor tension check with or without beams and di

thanks, I guess this is raft solution without beams, are you saying that for the rafter raft solution, the edges will not be constantly turned to the foundation? or how will we do it? ?

All beamed raft walls should be connected to each other with continuous foundations, raft slabs should be placed in the interstices.In addition, the superstructure interactive solution in the program is suitable for beamless raft foundation systems.

 

[H.YILDIZ]

Re: raft floor tension check with or without beams and di

thanks, I think this is raft solution without beams, raft solution with beams Are you saying that the foundation will not be constantly turned to the sides? Otherwise, how will we do it?

"All beamed raft column walls should be connected to each other with continuous foundations, and a raft slab should be placed in the interstices. Also, the superstructure interactive solution in the program is suitable for beamless raft foundation systems.

Mr. Levent, I agree with your statement one hundred percent. but I wonder if there is a source where this expression or a similar expression is mentioned, I can't convince anyone about it

 

[Levent Özpak]

Re: raft soil stress control with or without beams and di

"All beamed raft column walls are interconnected with continuous foundations It should be connected, a raft slab should be placed in the eyes that occur in between. Also, the superstructure interactive solution in the program is suitable for beamless raft foundation systems.

I agree with your statement one hundred percent, but I wonder if there is a source where this expression or a similar expression is used, I cannot convince anyone on the subject

Hello, The message you quoted belongs to 2015 and it was a situation that should be considered in program data entry in previous versions. In version 10, the program provides interactive solutions for rafter raft foundations. Also, continuous foundation and raft foundations can be used together. Good work I wish.

 

[H.YILDIZ]

Re: raft soil stress control with or without beams and di Thank you for your reply Mr. Levent, I am aware that the program can also perform Superstructure interactive solution on rafter raft. I follow the differences between versions as best I can. What I was asking was about rafter raft basically all the columns connected with the beam and the eyes being plated. Because there are friends who only make beams for the columns on the outside and make a plaque in the middle. There is nothing about it in ts500 or tbdy 2018, and I couldn't find much in the literature. I was wondering if there was a resource you could recommend for this. I wish you good work.

 

[Levent Özpak]

Re: raft soil stress control with or without beams and di

Thank you for your answer Mr. Levent, My question was about connecting all columns with beams and making plates of the beams. Because there are friends who only make beams for the outer columns and make a plate in the middle ... I wish you a good work

Data entry can be made by using continuous foundations and raft foundations together in Ver 10 in the program. Data entry can be made by dividing the columns with the raft edge to use a continuous foundation for the columns in the middle region.

 

[H.YILDIZ]

Re: raft floor tension control with or without beams and di Hello, there is no place in the literature for such information as "all columns are connected with beams and their eyes are plated". You were saying that because such data entry is not possible in old versions of the program, I think I understood this sentence correctly?

 

[Levent Özpak]

Re: raft floor tension control with or without beams and di

You were saying this because such data entry was not possible in old versions of the program, I think I understood this sentence correctly ?

Yes, it belongs to 2015 and previous It was a situation that should be considered in program data entry in versions. And we were warning users not to enter wrong data. In version 10, the superstructure interactive solution is made on rafter raft foundations in the program. In addition, continuous foundation and raft foundations can be used together. I wish you good work

 

[sahinsukru]

Re: raft soil stress control with or without beams and di

Hi there, then, information such as "all columns are connected with beams and their eyes are plated" has no place in the literature. You were saying this because such data entry was not possible in the old versions, I think I understood this sentence correctly ?

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