Part 3: Modal Responses using CSI ETABS

Modal Responses using CSI ETABS
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[@WaleedAfzal_EDE]

Thanks for the video. Can you explain "Model Directional Factors" and compare it with "Modal Participation Ratios and tell the differences between two in a separate video.

[@UnderstandingStructures]

Thank you 🙏 It is in my future list.

[@chsetha2630]

Sir, your first second and third mode is 4.7s, 4.2s, 3.8s...don't you think it is too big and what would the limitation value of time period ASCE?

[@ajit1583]

Sir in storey response Plot the results for RSX,RSY load case and modal load Case are different why?

[@PulkitVelani-u9w]

Thank you for your video. I have a couple of questions.
- Why ETABS modes (from mode 2 onwards) are not crossing zero values? i.e. all values are always postive. How to correct it?
- Can you please explain the reason of having such a high value of displacement (i.e. ~1.5m)?
- Also, based on these results how to corelate the conept of Higher mode effects in Tall buildings?

[@heshamtahon8007]

Sir Firstly thank you for all your video and explanations which really very important
i wish you make video about calculate the response energy like (yield, damping and input energy) from Modal response mode shape through these equations (based on integration equation of motion) also how can i reach to you

[@kengineerings9366]

thank you for this great explanation, could you please share the excel file , thanks

[@UnderstandingStructures]

Thank you 🙏 Please check my Response Spectrum Analysis Series. The links to download these Excel files is given in description there.

[@thesuccesman01]

Sir why you replace software from SAP2000 to ETABS to explain Modal Response Spectrum Analysis, is that because SAP2000 not capable to analyze and perform it ? or because result from SAP2000 so little, so we can't develop it to except and. explain The RSA?

[@UnderstandingStructures]

No. My audience in this demonstration wanted SAP 2000.

[@kalehobhob534]

ممتاز

[@UnderstandingStructures]

Thank you 🙏

[@kalehobhob534]

We appreciate everything you explain. Please, sir, explain to us a structure that has Torsional Irregularity@@UnderstandingStructures

[@rcbsht9644]

Sir can you share the excel sheet

[@UnderstandingStructures]

Please check my Response Spectrum Analysis Series. The links to download these Excel files is given in description there.

[@mehransahil6301]

Best

[@UnderstandingStructures]

Thank you 🙏