|
View previous topic :: View next topic |
Author |
Message |
Aakash Bikram Rana SEFI Member
Joined: 08 Mar 2019 Posts: 3
|
Posted: Sat Mar 23, 2019 3:59 pm Post subject: Shear force and Shear design in CSI SAFE |
|
|
Hello, sefians!
I am in my learning process for CSI SAFE. I am modelling this simple square isolated footing. Here, I am looking at the shear force generated in the strip. But, I do not understand why SAFE is showing such a shear force diagram. As far as I know, for isolated footing, it is supposed to be plain triangles, right? Could you please tell me why SAFE is showing such an irregular shear force diagram, or at least, what you think about it?
Also, on doing shear reinforcement design though SAFE, I see such asymmetrical and high values of shear reinforcement. In contrast, manual results show that the given depth should be sufficient without any additional reinforcement. What are your comments?
Description: |
|
Filesize: |
123.68 KB |
Viewed: |
212 Time(s) |
|
Description: |
|
Filesize: |
178.81 KB |
Viewed: |
230 Time(s) |
|
|
|
Back to top |
|
|
mjnasar ...
Joined: 26 Jan 2003 Posts: 72
|
Posted: Sun Mar 24, 2019 2:24 pm Post subject: |
|
|
Dear Eng.Aakash
Please see attached safe screen capture,
in the manual calculations we are assuming the point load on the single point only
( the sharp change of triangles in shear diagram)
but safe considers the column as stiffener ( distributes the point load on area of column)
and so the shape of shear diagram
regards
Description: |
|
Filesize: |
234.7 KB |
Viewed: |
228 Time(s) |
|
Description: |
|
Filesize: |
252.4 KB |
Viewed: |
215 Time(s) |
|
Warning: Make sure you scan the downloaded attachment with updated antivirus tools before opening them. They may contain viruses. Use online scanners here and here to upload downloaded attachment to check for safety.
|
Description: |
|
Download |
Filename: |
safefile.zip |
Filesize: |
136.76 KB |
Downloaded: |
222 Time(s) |
|
|
Back to top |
|
|
Aakash Bikram Rana SEFI Member
Joined: 08 Mar 2019 Posts: 3
|
Posted: Mon Mar 25, 2019 1:56 pm Post subject: |
|
|
Thank you for the reply. It solved some doubts I had. Also, I discovered that the sharp triangles were not visible in SAFE because of the default high mesh size. After reducing the mesh size, the diagrams are much better.
Description: |
|
Filesize: |
159.29 KB |
Viewed: |
201 Time(s) |
|
Description: |
|
Filesize: |
127.12 KB |
Viewed: |
210 Time(s) |
|
|
|
Back to top |
|
|
|
|
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum You cannot attach files in this forum You can download files in this forum
|
|
|
|