What is response spectrum? How is the analysis performed in this method? What is Tripartite Plot? All are explained in this video. Telegram Link: t.me/acecivile... Facebook Page Link: / ace.civilengineer
I didn't find any youtube videos with this much explanation about RSM. Worthfull 30 minutes in my day. Keep doing more videos like these sir. All the Best.
Sir, thank you for explaining it. Please can you start a new design course such as designing of various building components? Or a course on Earthquake engineering?
so basically initially you described what response spectrum is, and at the last from 23:18 whatever you described is the response spectrum analysis, is it so?
Thanks for explaining the concept in graphical manner. Need to understand reason to create Response in terms of Displacement, Velocity n Acceleration ? Why IS 1893 uses REsponse Acceleration graph only. You can suggest any link also.
thanks for such a nice video..but i steel did not understand how we convert time-acceleration (earthquake data) to accelration-period (design spectrum)? Becouse earth data comes with time and time converted to period...in this particular transition what formula we use? have any video to explain pls or planig to make such a video? thanks
Good question @HZL. I think you have to revisit the complete video again. Earthquake data is not directly converted to design spectrum. Design spectrum is arrived by a combination of seismic responses of different structures with different time periods
Kindly confirm. At 12:30 minutes, where you show on the left the plot of Displacement-Time-Period of SIX various time period displacement-time graph(6 colors) have nothing to do with various damping ratio highlighted in the right side of slide (6 colors)
Hello peter. The plot shown on the left side has nothing to do with the damping ratio shown on right side. Please note, the plot shown on left was for a random constant damping ratio.
What i've understood is that, design seismic response spectrum is drawn for a specific magnitude of seismic force (ground vibrations) In different area, there is different magnitude of maximum ground vibration that has occurred in history and this is what shall be used in the design. Does the code has design spectrum for each area or its general for all over the country?
Nice Presentation Sir, I have one doubt regarding design response spectra which was mentioned in the IS 1893.Why it is indicating some spectral acceleration at zero time period ,then why it is increasing linearly and then why it is constant in the certain time period? only because of Response reduction factor or is there any other reason?
Designing for the max base shear would be highly conservative and uneconomical. That's why we average them out with various type of combinations like SRSS, CQCetc
Good morning sir I have to make a dissertation on topic"to study the effect of seismic loads on concrete silos". Please guide me sir and provide some matter related to this topic Thank you
Friend, Remember that when you expressed SPECTRAL ACCELERATION ( a ), in terms of displacement ( D ), ,, the equation of ( a ) shall be a = D / T^2 then , when Natural Time Period ( T ) is zero ( 0 ), SPECTRAL ACCELERATION ( a ) is INDETERMINITE, and your RS CURVE will not meet at Zero origin of x and y axis , BUT THE TRUE SPECTRAL CURVE, when T is approaching near Zero, the Line of Curve will go higher and higher at the y axis BUT will not meet zero, coz when you plug zero in formula you will have ERROR result .. . So your RSA is partially wrong
To determine the damping ratio, one must know how much seismic response (displacement or velocity or acceleration etc) is being discipated per each cycle of vibration..
