×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

How to reduce the value for cohesion

How to reduce the value for cohesion

How to reduce the value for cohesion

(OP)
In Eurocode7, there are 3 types of Design Approach (DA) to calculate the ULS for GEO.
In DA1.2 and DA3, the angle of shearing resistance,? have to be reduced. For example, with ?=30, it needed to be reduce to arctan(tan30/1.25) = 24.8.

The cohesion,c' have to be reduced in DA1.2 and DA3. The question is how? Thanks!

RE: How to reduce the value for cohesion

kokfann,
the original gamma(m) factor (partial FOS) for c' would be 1.25.

It can be changed though, according to specific national requirements.

In Italy, for example, initially it was the same as EC7, then recently it was increased to 1.4, same as Cu.

It makes sense to me, since statistical variability in c' and Cu is pretty much the same.

Also, do not let's forget that nominal  or 'derived' values of parameters must be transformed to 'characteristic' values before the gamma-factors are applied.

RE: How to reduce the value for cohesion

(OP)
thanks Mccoy, but i need the method. but anyway just to share with others, i just got it. it's c_d = c_k / gamma_c

silly me....silly me...  :D

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources