Apostolos Koursaris's Communities Activities

Steel Design details are not available after the 2023 update

Apostolos Koursaris — Tue, 19 Sep 2023 14:19:42 GMT

Good evening dear community,

After the recent update to version 2023 when i try to make the relevant report , steel design details are not an option on the table . All process is the same i used to previous version and i hadn't any issue. before the update.

Below is a screenshot as it was indicated before the update:

What is the issue for this?

Thank in advance for your kind support

Apostolos

snow load activation

Apostolos Koursaris — Mon, 29 May 2023 08:54:49 GMT

Hello dear community.

Could you please assist me in snow load activation?I applied for snow load definition in catalagoue and also i created a snow group in load groups. When i try to create a load case as a snow definition and tap to select the relevant group (snow), this is not indicated

Am i missing any step?

Alternatively, i selected the snow general where mass and snow goup filter are indicated and already selected and in load factor i put 1. When i switched to analytical modeler and run the post process i saw that i don't have any forces on my steel structure when i choose to see snow loads.

Thank you very much for your support.

Kind Regards,

Responce spectrum for eurocode seismic definition. Automatic combinations are not available for eurocode.

Apostolos Koursaris — Thu, 25 May 2023 10:22:46 GMT

Good afternoon dear community.

I used Responce spectrum because eurocode seismic definition is not available in seismic load definitions in physical modeler worklfow. Automatic combinations are not available for eurocode as well. So i sellected the asce 7-16 automatic combinations. Then i saw that factors in spreadsheet were zero on seismic load cases and also when i turned to analytical workflow to check the results after the analysis , there were no forces in seismic load cases. I assume that staad pro does not read responce spectrum as seismic thats why we have zero values in spreadsheet.How can i resolve this?

If i have to use asce 7-16 in order the seismic definition to be normally applied and get the automatic combinations as well, what is the equivalent design ground acceletration cell on asce7-16 which is indicated to eurocode?

Thank you very much in advance for your valuable support.

Eurocode 1998 in Responce Spectrum

Apostolos Koursaris — Tue, 13 Dec 2022 09:09:47 GMT

Dear community,

Good morning.

As usual i make the steel structure and insert the relative loads (self-pipe-seismic-wind) in physical modeler workflow. For this client, i have to check the steel structure according to EN1998. Specificcally for earthquake, i have to go through Responce Spectrum in order to insert the load definitions because eurocode in seismic load definition is not there.

Also, i inserted manually the load combinations (automatic load combinations for eurocode are not there as well) and switch to analytical mode to run the model. In postprocessing when i checked the behaviour of the steel structure in each combination , i realised that there was not any change to the loads and to behaviour as well. The model used the pipe loads only as input in every aspect.

This doesn't happen when i use the seismic load defifinition with ubc 1997 and automatic load combination input. When i turn to analytical model then the behaviour in each combination is different and i can normally see the relevant loads as well.

What should i change?

Thank you very much in advance for your valuable support!

Kind Regards,

Apostolos

On Report and Material Data to steel design section is not according the model selection

Apostolos Koursaris — Fri, 25 Nov 2022 12:40:31 GMT

Good afternoon,

As you can see on the below snapshot extracted from the report in steel design checking(S235), is not according the selected and used in the model (S275).

How can i rectify it and indicate the correct section?

Thank you very much in advance.

Kind Regards,

Wind Loads on X axis are not shown with the default arrows

Apostolos Koursaris — Fri, 25 Nov 2022 08:50:38 GMT

Good morning.

After the analysis of the structure and try to show the wind loads on X axis, i cannot show them with the deafault arrows. Only the defected members are indicated (see the snapshot below).

Model, loads and load combinations created in physical modeler work flow.

Thank you very much in advance for your support.

Kind Regards,

Simulation of piping loads when skid is om service.

Apostolos Koursaris — Wed, 14 Sep 2022 15:05:06 GMT

Good evening dear community,

As you can see i study the behaviour of a crude oil skid when it is in service. In the first photo, you can see the skid as it is constructed in AUTOCAD PLANT 3D.

On the second one, I simulate loads of the piping with one vertical load (weight only when the pipe is full of product). On the 3d one I simulate the same piping loads but in 3 axes with the rule of thumb of friction load=0,4xvertical load and lateral load=0.1xvertical load.

The system is under the wind, seismic loads and their combinations as well.

After the model analysis and during the post-processing workflow, I see that with the vertical only loads, my model succeeds (4th photo) whereas, in the second scenario and 3-axis forces, a lot of beams are failing...(5th photo)

1st photo

2nd photo

3d photo

(same situation with 3rd but support is isolated in order the view to be clearer regarding the 3-axis forces

4th photo

5th photo

Which option is the best to follow for better and more realistic results? 2nd option and 3-axis forces are over-engineering results?

Thank you very much in advance for your support!

Kind Regards,

Error during analytical model creation from physical modeller

Robin Lalrinawma — Thu, 08 Jul 2021 08:28:25 GMT

Error during analytical model creation from physical modeller

Identical nodes exist

Prefabricated Elements - Cutting List - Shop Drawings

Apostolos Koursaris — Thu, 26 May 2022 09:56:00 GMT

Hello Dear community,

Currently i use the Staad Pro connect Edition in order to design steel structures. With Steel Auto Drafter i can generate GAD drawings without the relevant details generated via Connection Design feature with Ram connection licence activated. Which licence do i need to activate in order to produce shop drawings (prefabricated elements detail drawings-shop drawings-cutting lists)? Does Ram connection licence include features that support the relevant functions? If not , which licence needs to be activated in order all these to be included?

Thank you very much in advance for your valuable support.

Kind Regards,

Apostolos

Ram connection

Apostolos Koursaris — Fri, 20 May 2022 15:54:20 GMT

Good evening dear community,

I need your guidance regarding the launch and use of Ram connection interface.

Model designed in physical modeler and then analysed in analytical. As you can see on the below picture i selected the ''select all Beam-Column flange joints'' from ''select joints tab'' at the upper left side. Then i selected the smart connection and put the applicable design code where only one connection was available.. see the following pic.

I selected it and then the following message appeared.

What am i supposed to do in order to assign the connections?

Thank you very much in advance for your sypport.

Kind Regards,

Apostolos

Partner in Athens-Greece (STAAD PRO CONNECT EDITION) for live webinar or seminar.

Apostolos Koursaris — Wed, 30 Mar 2022 17:19:59 GMT

Hello dear community,

Is there any partner who is available in Athens-Greece in order to arrange a live seminar or webinar for Staad pro connect edition?

Thank you very much in advance for your assistance and prompt response.

Kind Regards,

Apostolos.

Factor for skid lifting base frame with pipe elements via crane

Apostolos Koursaris — Mon, 01 Nov 2021 13:36:57 GMT

Dear community,

Good afternoon.

I would like to ask how much should be the multiply factor for lifting case scenario via crane, in order to simulate the acceleration of the lifted structure. The applicable code is EN 1993-1-1:2005.

Normally i multiply the load combination (self+dead)x1.35, but i dont know if i am near enough to realistic values.

Thank you very much in advance for your valuable support.

Kind Regards,

Apostolos

Factor issue in load combinations

Apostolos Koursaris — Tue, 09 Nov 2021 09:09:17 GMT

Good morning dear community,

I have an issue with the load factor in front of load combinations. It seems that is working fine on physical modeler (when i switch to the relative combination, the loads multiplied accordingly) but when i turn the model on analytical modeler and switch on the same load conbinations, the loads remain the same (x1.00).

First photo with 1.00 factor.

Second photo with 1.4 factor.

What is the issue on this?

Thank you very much in advance for your support.

Kind Regards,

Apostolos

Ask A Question II

Mon, 01 Nov 2021 13:38:37 GMT

Ask 10 questions in a forum.

IBC/UBC seismic warning

GBaltali — Wed, 04 Nov 2015 17:48:59 GMT

"**WARNING: IF THIS UBC/IBC ANALYSIS HAS TENSION/COMPRESSION OR REPEAT LOAD OR RE-ANALYSIS OR SELECT OPTIMIZE, THEN EACH UBC/IBC CASE SHOULD BE FOLLOWED BY PERFORM ANALYSIS & CHANGE."

I did not understand anything from that warning but it contd to analize the structure. I wanna ask you that is my seismic analysis correct?

P.s: I entered 0.8s period values on purpose. And i know my modal analysis is wrong.