Hollow floor help

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erbilsancaktar

New Member
Dear brothers and friends. I have been dealing with project work for 1 year. I have done and continue to do small projects with plate beams. This time I came across a big project with hollow floor tiles and I hope I did not misbehave if I applied for your help because it was the first. I have the architecture. Drawn with ide 7 architectural version. I don't want to make mistakes in placing the columns. I do not want to be embarrassing to the contractor as the correct column placement affects both the iron quantity and the usability of the building. My project is Shelter + ground + 3 floors. How should the column locations be the most accurate? What should the column dimensions be? Beam dimensions? What does the typical number of beams affect and how many should be. What should be the maximum spacing between the columns? Thank you in advance for your help.
 
Try to arrange the column so that the frame is formed. Avoid stud beams. Try to achieve as much symmetry as possible when placing the columns. Avoid columns of different sizes, which can cause difficulties for craftsmen in manufacturing and supplying materials. You can start the column dimensions as 30/60 and enlarge the sections according to the situation. You can place curtain columns in the center of the building. Beam dimensions are usually 50/32. You can increase the sections according to the situation. If you say I will solve 50/30, you need to know the height of the styrofoam to be used in the application. If 25 cm styrofoam is used, the floor remains 5 cm, which is not my favorite. 1 tooth rib beam transversely after 4 meters to rib beams running in one direction in floors. It is useful to define 2 tooth ribs after 7 meters. It is not something we can do, as it will take a lot of time to place columns on the plan you sent, but you can create your design and ask your questions on this page, they will help you.
 
First of all, thank you for your interest, Technicalman. I made a colon placement by following your recommendations. I also did my analysis. No problem appears. But can I ask you to check it out too? I am using reinforced concrete 8.62. I converted it to ide 7 version and uploaded it.
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I'm using
"erbilsancaktar":3phrfkal" said:
reinforced concrete 8.62. I converted it to version 7 and uploaded it.
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Hello, since the element division and wall definition data rules have changed since 8.5, when the project created in version 8 is saved as the old version, data losses occur. Data entry needs to be controlled and regulated. The same is true when switching from 7 to 8.62.
 
I actually did a study and thought of posting it. But I have come to the conclusion that it is better for you to work a little more detailed and share the problems yourself. In this way, the whys, whys and hows will be more memorable. I will share my proposal work in the next message. My advice to you is do not force the system unnecessarily. At some points, you can go to the use of curtains. You will probably have to use curtains for the elevator. Therefore, distribute other curtains in the structure. Connect the K19 beam to the column. Connect the S14 column in the other direction. If there was a need to put a column there, people wonder why it is not on the K14 or K5. Of course, you should also review live loads. If it were me, instead of making such large slabs and making intermediate ribs, I would make the slabs smaller and make beams.
 
"NYILMAZ":3pn1u52f" said:
Actually, I made a study and thought of posting it. But I thought it would be more appropriate for you to work a little more detailed and share the problems. Thus, the whys, whys and hows will be more memorable. I will share it in the next message. My advice to you is do not force the system unnecessarily. You can use curtains at some points. You will probably have to use curtains for the elevator. Therefore, distribute other curtains inside the building. Connect the K19 beam to the column. Connect the S14 column in the other direction. If there is a need to add a column there One wonders why it is not on K14 or K5. Of course, you should also review live loads. If I were you, instead of making such big slabs and making intermediate ribs, I would make the slabs smaller beams.
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Dear; NYILMAZ, thank you for your attention. I applied your recommendations. K14 and I didn't put a column in K5 because my ground floor is a shop and in the middle of the shop a column I wanted to solve it without worrying. And you said "it's better to use beams than large slabs and transverse ribs", should I use stud beams? It didn't occur to me at first either, but I wanted to stay away from studs so I didn't. can i do it? Also, my beams don't have to go upright, right? Can I run it crosswise? Isn't it because I broke the frame? Is it better for my ribs to be parallel to the long direction or perpendicular? According to my research, if it is perpendicular, the earthquake effect reaches the carrier beams more quickly during the earthquake. You have advised me to control live loads. I made fixed loads 0.65 t/m², a serious deflection occurred in the floors. I think I should use beams instead of transverse ribs. I am hesitant about using curtains, how many curtains are comforting? Big curtains like 30 X 210? What if I just made a U-shape around the elevator? Doesn't it draw attention? 3410 m² + 628 m² foundation = 160 tons of iron in 4038 m² area, do you think it's normal? I'm glad I could learn some things from you. I'm looking forward to your help and advice in advance. Thank you.
 
Dude, before modeling, you need to know the application so that you can interpret it better. In the system, your raft foundation is made of 14-gauge reinforcement and the stirrups of the columns are made of 14-gauge iron. No one will make 14 double, triple stirrup columns in such a project. The beautiful contractors of my country, who see this, do not react well. :) Your basement curtains are made of 8 gauge iron vertically. This can be done, but it is useful to increase the diameter. My advice is to use 12. Some columns remained outside the wall joints. Your columns with large cross-sections make serious teeth (protrusions) in the spaces, which is not a pleasant sight. Match the wall corners exactly. Turning the beams on the sides of the stairs and elevator buckets into vertical beams such as 25/50 will further relax your system. K15 entered the stairwell. Most slabs have double rib teeth, and some are just next to the joist, not in the centre. It would be better if you connect K40 beam to S17 column and k37 beam to S07 column. As the friends said above, you need to connect the K19 beam to the s23 column. You can throw cross beams in the hollow block. Frame does not mean square beam connections. Frame means connecting columns with beams from all sides. Consider 4 columns, they can be in various coordinates, diagonal, square, rectangular. The key is to connect them together. Again, as the friends above said, whatever the wall thickness and types used in architecture, you need to give the loads of the wall thicknesses used in this system to the beams. Again in the project, there are elements that do not provide shear safety in the junction of columns and beams. It's good for you to fix them. If you have time, research them one by one and try to fix them. If you don't have time, if you have a technical person nearby, it would be helpful to get help. When it comes to curtains, the curtain is something that is as necessary as elements such as columns and beams in a structure. On the contrary, it makes your building more comfortable, unlike the column.
 
I increased the number of columns and their size. I added curtains. I shortened the beam distances. Although the number of columns and their size increased, the amount of iron decreased. I'm so glad.
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Attached is the work I mentioned. Since there was not enough information about the elevator and stairwell, I made a study in this way. I don't know your needs regarding basement, ground floor. The nursery windows overlooking the inner garden can be slid. I didn't do the analysis. I don't think there will be a major problem, just in the form of design. Change the direction of the beams K36, K37. I think you should increase the slab live loads (there are walls on them)
 
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