Project control

[sezeraynur]

Hello. First of all, have a good day. I am asked to make static and reinforced concrete controls of the buildings to be built. As a person who has not used a package program before, the last project I received was prepared in idecad, I have a few questions for you. I am a person who defends to the end the necessary care in the design of reinforced concrete and reinforced concrete. Thank you very much for your support in advance. QUESTIONS 1.This project was solved by assuming full rigid diaphragm and only B3 earthquake irregularity emerged, and as far as I can see in the reports, ide met the allowable condition (50% internal force increase) in TDY2007. There is no problem here. If a solution is made with the acceptance of a semi-rigid diaphragm, 39 errors appear in the reports. Now in this case, do I want a zero-defect report in both solutions or can I only accept a fully rigid or semi-rigid solution, how safe is it? 2.Is there an effect on the rigidity behavior of the floors in which hollow hollow floor tiles are used throughout the building? (Select semi-rigid vs. fully rigid?) 3. Should all geometry controls be provided, for example, walls that do not meet the requirements of TDY2007 in TDY2007 were used, that is, they should be rearranged as columns; As a result, the curtain behavior and column behavior will be different, assuming that the program will solve it, how effective is this in the solution, does it cause big errors or is it within acceptable limits? 4. At some points, there are gaps in the column-beam junctions, what does this mean, what is the effect? 5. Does the analysis made in an original idea give different results in the demo? 6. Finally, this ide data was made in 7 versions, and when you analyze the same data in demo 8 versions, the errors are much more; Is it an error caused by the version difference or does idecad8 demo perform much better analysis than version 7. I sent the project file to [email protected]

 

[HakanŞahin]

Hello, After the project you sent is reviewed, you will receive a reply.

 

[HakanŞahin]

Hello QUESTIONS 1.This project was solved with the assumption of full rigid diaphragm and only B3 earthquake irregularity emerged, then as far as I can see in the reports, ide met the permissible condition (50% internal force increase) in TDY2007. There is no problem here. If a solution is made with the assumption of a semi-rigid diaphragm, 39 errors will appear in the reports.

In reinforced concrete, the reinforcements are fixed and the diameters of the reinforcements that can be used in the selection of reinforcement are also limited. In the semi-rigid diaphragm solution, the amount of reinforcement needed changes as the design moments and shear forces change due to the method difference. You will not encounter any error message when sufficient rebar diameter is marked in the reinforcement selection and the rebar is unfixed.

1. Now in this case, will I want a zero error report in both solutions

No, you should request an error-free report for whichever method will be selected. [ quote]or can only accept a fully rigid or semi-rigid solution How safe would it be?[/quote] It's up to the initiative engineer here. The reinforcement design should be finalized according to the chosen method.

2.Does floors where hollow floor tiles are used throughout the building have an effect on the stiffness behavior? (Semi-rigid vs. full-rigid should be chosen?)

As we answered in the previous item, the initiative belongs to the engineer. Both methods can be used.

3. Should all geometry controls be provided, for example, walls that do not meet TDY2007 wall conditions were used in this project, so they should be rearranged as columns; As a result, assuming that the program will solve it, the curtain behavior and the column behavior will be different. How effective is this in the solution, does it cause large errors or is it within acceptable limits?

Failure to meet the size requirement of the curtain does not affect the analysis and it is not necessary to re-enter it as a column. On the other hand, L, U type curtains are modeled as a shell by entering as a panel regardless of the condition of each side curtain. However, other errors found in geometry control are important errors that can affect the calculation, and those errors must be eliminated. Such as faulty inclined flooring, console ribbed flooring cannot be designed.

4.There are gaps in the column-beam junctions at some points, what does this mean? It does not affect analysis and design.

5.Does the analysis made on an original idea give different results in the demo?

No, it does not.

6.Finally, this ide data was made in 7 versions, and when we analyze the same data in demo 8 versions, the errors are much more; Is it an error caused by the version difference, or does idecad8 demo perform much better analysis than version 7.

First of all, in version 7, the errors should be eliminated with data entry and since there are U and L type curtains in the project, the curtains should be modeled as shells. Existing data entry errors generate 7 to 8 model differences. After the data entry correction, there are small differences in design moments between versions 7 and 8, which affects the reinforcements a bit. Since the reinforcements are fixed in reinforced concrete, you may receive an error notification about the missing reinforcement. In order for the errors to disappear, the reinforcement fixing must be cancelled. The errors we detected in the project are as follows: 1) Floor overlapping and incorrectly inclined floor defined on the stage floor 2) Basement curtains and elevator panels are not modeled as shells 3) DS columns are marked. When marked, the project is fixed according to the current load and frame model. It is normal to receive missing reinforcement messages as the design moments will change when the analysis method is changed. 4) There is no knot on the beam at the point where the upper floor edge of the D31 slab is connected to K58 on the 3rd floor. The data entry needs to be corrected to connect it to the K58. 5) D12 tile seems to work as console. The position of the typical tooth needs to be changed. 6) The names of the beam parts divided between the columns must be the same. For example, the beam between the columns S15-S16.

 

[sezeraynur]

Thank you very much for your valuable comments, Mr. Hakan. Thank you very much.