Soil Stress and Stapling Control

[ganymede]

Hello there. There are two things I am wondering about. - In the old versions, when we made the Progressive Construction Calculation, the ground stresses changed quite positively, but in the new version it almost makes no difference. What is the reason of this? - When we connect vertical elements with stapling problems with a curtain at basically any height, the control does not appear in the report. What is the reason for this exemption? - Is there any other way to reduce the max ground stress besides the standard moves? Thanks in advance.

 

[oguzcan]

Hello there; The change in the situation that the Progressive Construction Calculation affects the soil stresses positively is a change in the regulation. In TBDY 2018, element stiffnesses are made according to "cracked section stiffnesses". However, in DBYBHY 2007, there is no sanction regarding cracked section rigidity. In the Progressive Construction Calculation, "cracked section stiffnesses" are used. Therefore, the difference with the 2007 regulation may be larger than the difference with the 2018 regulation. Because in TBDY 2018, cracked section stiffnesses are used as in the phased construction calculation. On the other hand, if you send the project that you have identified this situation, we can help you better. Since the collapse mechanism of the vertical elements connected to the curtain did not occur, this control was not carried out. However, necessary work will be done to carry out the control you mentioned. In order to reduce the soil stresses, you can examine the raft foundation finite element results, look at the stress distribution in the finite elements where the stress is concentrated and arrange the carrier system accordingly. Best regards...

 

[ganymede]

Thank you Mr. Oguzcan.