×
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

CSiBridge for plan curve Bridge

CSiBridge for plan curve Bridge

CSiBridge for plan curve Bridge

(OP)
Hi to all.

CSiBridge have the ability to change a bridge route into curve or straight automatically, just defining the radius and length of arches between two points.
I'm now working with this ability and made 2 models with a concrete box girder with a few spans, one in a curve route (slightly curve in plan) and another straight. For this two models is made the exactly same construction process (with construction scheduler), free cantilever. My objective is to take the vertical displacements for both and compare. I'm obtaining a very different displacements comparing the both models, and as I think, it is not expected so. As you can see in the Annex graphic, the straight route seems OK, with symmetrical displacements. Looking into the curve route, we can find obvious unsymmetrical displacements.

I would like to know if someone as already experienced this "problem" with CSiBridge or if I'm doing some wrong consideration.

Thanks in advance,

RE: CSiBridge for plan curve Bridge

I don't have the slightest idea about CSiBridge or what your graph is intending to show (well, vertical displacement yes, but what is your x-axis representing?)

That said, as explained in NCHRP report 725, accurately calculating deflections in curved or skewed bridges can be quite difficult and method-dependent.

RE: CSiBridge for plan curve Bridge

This feature is newly added to CSIBridge. What I know from Reference Manual of CSI products, when curved shell objects (assuming that's what your deck is made of) are present in bridge modeller, different force internal forces and stresses transitions are experienced. You'd better double check with connectivity of curved area, look for any meshing transitions, or any sort of constraint/restraint.

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