Hello,
I really need your help.
This is the problem.
I have a trimmed model of the Hoist structure, the beams along columns as highlighted in Red in Fig1.pdf failed in deflection as the result in Analysis.
There are large deflection values at main cantilever members.
The following are already tested in the model but will still fail in design.
Q1.Is there something wrong with the parameters set for a cantilever beam?
Q2. The members are assigned with MAster slave to columns to consider the actual length, is this method correct?
Q3. Does the failure have to do with Built-up column section?
Does the main column have anything to do with the effects of the cantilever beam?
Notes : This model was run in STAAD.Pro v8i SS6 Build 20.07.11.90. When I try to run the analysis in STAAD Advanced Connect Edition, I encounter error in analysis.
Thank you very much in advance.
Have a great day!
Attachments below
PDFAbsorber_Maintenance_Str_09042020_Drift_offsetCAN_orig2.std
Deflection parameters are ok but you do have deflections that are higher than the allowable value you have set. Changing the supports 100 104 and 106 from PINNED to FIXED would help in getting the deflections down.
Answer Verified By: Dave Jason Narca
Also regarding the error you got when running the analysis (actually the design) in STAAD.Pro CONNECT Edition, this is being caused by a glitch in the software when seismic checks are asked for in a model with tapered members. Our development team has addressed the issue and the fix should be a part of the upcoming release of STAAD.Pro which is coming out in few weeks. For now as a temporary workaround, you can get the analysis to run in STAAD.Pro CONNECT Edition, if you comment out the design parameter SEI 1 ALL
Sye,
Thank you for the verification and help.
I tried removing the SEI parameter and I can now run in connect edition. We will wait for the update for this issue.
Thanks again.
Mr Sye,
Just for Follow up.
I tried to run with SEI only to non-built up members, and it seems that I still cannot continue the analysis.
1.) Does this glitch applicable to the Staad file itself wherein once there are built-up member, it is not recommended to use SEI parameter?
2.) Is there another parameter/workaround related to SEI I can use? Horizontal drift varies greatly If I don't include SEI in the design parameter.