Do you conducting online structure design training for industrial RCC and steel structures, for industrial, commercial, residential, telecom towers, sub-stations etc. in detail? Please reply, waiting your hopeful answer.
@msajjadh Can you please enlighten how can we simulate multiple scenarios, i.e. accidental. overspeeding etc. in a staad model. I understand we can be done with multiple models. but can we combine them in one using different load cases?
I hope you wouldn't join the bandwagon of connecting weightless rigid entities with high flexural rigidity to the centre of gravities of the driver and driven package. I.e if those are the location where the dynamic loads are generated as this can be done differently without the modelling of rigid connecting beams as I see most of you online tutors. To apply lateral dynamic loads at a centre of gravity which is located above a modelled block foundation (note plate elements are also used, especially if a static design is also required), you apply the principle of transmissibility and transfer the lateral harmonic loads to the top of your block as well as the corresponding harmonic moments. This eliminates the modelling of rigid entities in a STAAD model. Also note that for most centrifugal machines that are connected to the foundation through tie-down pad plates like a gas-turbine driven generator, the unbalance forces are generated at the rotors and transferred unattenuated to the pad plates and not at the C.O.G of the equipment packages
You are right, I could have transfer the forces in the line of their action (using the principle of transmissibility, as suggested by you). I preferred to model the massless members for easy understanding. You may post an example as you suggested.
I am wondering how I'll post this here as there are no possibilities to share attachments as I've designed several turbine-driven compressor foundations, gas turbine generators, etcetera based on multiple degree of freedom with STAAD to extract the time-varying deformation (in x, y, z directions), time-dependent quadratic mean velocity of vibration in addition to the time-dependent acceleration of the finite element foundation. Not excluding the response frequencies and vibration modes. If I can share attachments here I would have sent in a couple of these design reports for machines foundations engineered for a number of multinationals for onshore production gas and power plants designed in accordance with DIN-4024's requirements as well as provisions of API 686. This includes piled block foundations where restraints from the stratified soil formation are derived from the appropriate pile-soil interaction theory. You're doing a good job by the way
@@PROCCIEngineeringNigeriaLtd Thanks a lot for sharing your thoughts. I appreciate, if you can send me your design reports by e-mail to me. I shall include your reports in my next video. My e-mail is msajjadh58@gmail.com
Thank you very much sir'. Expecting for next session...😊
Thank you sir, this is so insightful, when is the continuation of this design coming out.
Very soon
@msajjadh looking forward to your next video, I hope you will compare your results with Shurash Arya as well.
Thank you very much. How can i get the complete video?
Thank you very much sir, how do i get the complete video
Do you conducting online structure design training for industrial RCC and steel structures, for industrial, commercial, residential, telecom towers, sub-stations etc. in detail? Please reply, waiting your hopeful answer.
Continue brother. Thanks.
Any part 2 from the video Sir?
@msajjadh Can you please enlighten how can we simulate multiple scenarios, i.e. accidental. overspeeding etc. in a staad model. I understand we can be done with multiple models. but can we combine them in one using different load cases?
Good question, let me think over it.
There is no next part of the video.
Kindly, Is your spreadsheet available for download and how
Thanks can you give us a excel sheet
Please share the second part
I hope you wouldn't join the bandwagon of connecting weightless rigid entities with high flexural rigidity to the centre of gravities of the driver and driven package. I.e if those are the location where the dynamic loads are generated as this can be done differently without the modelling of rigid connecting beams as I see most of you online tutors. To apply lateral dynamic loads at a centre of gravity which is located above a modelled block foundation (note plate elements are also used, especially if a static design is also required), you apply the principle of transmissibility and transfer the lateral harmonic loads to the top of your block as well as the corresponding harmonic moments. This eliminates the modelling of rigid entities in a STAAD model. Also note that for most centrifugal machines that are connected to the foundation through tie-down pad plates like a gas-turbine driven generator, the unbalance forces are generated at the rotors and transferred unattenuated to the pad plates and not at the C.O.G of the equipment packages
You are right, I could have transfer the forces in the line of their action (using the principle of transmissibility, as suggested by you). I preferred to model the massless members for easy understanding. You may post an example as you suggested.
I am wondering how I'll post this here as there are no possibilities to share attachments as I've designed several turbine-driven compressor foundations, gas turbine generators, etcetera based on multiple degree of freedom with STAAD to extract the time-varying deformation (in x, y, z directions), time-dependent quadratic mean velocity of vibration in addition to the time-dependent acceleration of the finite element foundation. Not excluding the response frequencies and vibration modes. If I can share attachments here I would have sent in a couple of these design reports for machines foundations engineered for a number of multinationals for onshore production gas and power plants designed in accordance with DIN-4024's requirements as well as provisions of API 686. This includes piled block foundations where restraints from the stratified soil formation are derived from the appropriate pile-soil interaction theory. You're doing a good job by the way
@@PROCCIEngineeringNigeriaLtd Thanks a lot for sharing your thoughts. I appreciate, if you can send me your design reports by e-mail to me. I shall include your reports in my next video. My e-mail is msajjadh58@gmail.com
Can I reach you, I have some questions concerning this.
Sir can y give me this excel sheet