Excellent ...........I was looking for this derivation only and found from your channel, Thanks and keep uploading more such videos on structural analysis topic
What you've derived is stiffness and not Relative stiffness. The relative stiffness values are I/L and 3I/4L for far end fixed and far end hinged respectively.
In some other videos (moment distribution), you tell RELATIVE STIFFNESS = 3/4 * EI/L in case of Far end hinged, while here you say rel stiffness = 3EI/L. Why so?
mevada maunik well i believe by equivalent joint load matrix you mean the matrix that we form by considering the loads on the structure, in that case the signs are changed because the moments or forces that we need to write in matrix are the loads which are causing deflection or rotation, while its difficult to explain right now but you can check the problem that i have solved of stiffness matrix on my channel
It is called relative stiffness, because the stiffness value at the same joint is dependent on the condition of the far end joint, hence it is relative to what your far end joint is.
Excellent ...........I was looking for this derivation only and found from your channel, Thanks and keep uploading more such videos on structural analysis topic
Good
What will be the value for cantilever beam? One end fixed and other end free
Thank you sir, great video.
Amazing
What you've derived is stiffness and not Relative stiffness.
The relative stiffness values are I/L and 3I/4L for far end fixed and far end hinged respectively.
Take a common factor of 4 from both the results derived in this video, you will get EI/L and 3EI/4L
Please solve this case by conjugate beam method
Plz Make a video on finite element method
In some other videos (moment distribution), you tell RELATIVE STIFFNESS = 3/4 * EI/L in case of Far end hinged, while here you say rel stiffness = 3EI/L. Why so?
why in equivalent joint load matrix Chang it's sign ??
mevada maunik in relation to which video are you asking?
mevada maunik are you asking the question for stiffness matrix problem?
yes sir,
in my question chang =change
mevada maunik well i believe by equivalent joint load matrix you mean the matrix that we form by considering the loads on the structure, in that case the signs are changed because the moments or forces that we need to write in matrix are the loads which are causing deflection or rotation, while its difficult to explain right now but you can check the problem that i have solved of stiffness matrix on my channel
it was good
It's called stiffness/ absolute stiffness/ stiffness factor. It's not relative stiffness. Ur title was relative stiffness
It is called relative stiffness, because the stiffness value at the same joint is dependent on the condition of the far end joint, hence it is relative to what your far end joint is.