Sir, Your videos very much helpful. Can you please explain the Lx, Ly and Lz parameter for rafter and which parameter should assign for which member of structure.
Now also column height is full height only if want to divide by 2 u should connect bracing at strut location.so then only from strut location bracing will transfer the load to foundation.if u dont provide bracing column will bend between foundation and eave joint only.
also you have modeled purlins also....is it mendatory to model purlins or can we simulate the effect of purlin by just assigning the value of Ly to rafter members?
If the main frame is moment connected then why have you taken the effective length as L it should be 0.65L as for moment connected frame the column is fixed on both side. And for longitudinal direction, column is pin connected so effective length is L
Thanks for sharing! your VDO is very helpful for young Engineer like me, if you can make the example of steel frame column design with Autodesk Robot is good.
the lx and ly parameters are with respect to local axis of crossection , not on global axis . Please check I think there is an error in your presentation . Following staaadpro conventions , Z is local axis and is major axis Y is local minor axis X is axis along length Lz is used for buckling length for major axis Ly is used for buckling length about y axis Lx is buckling length for torsional buckling case . Usually ly and lx are same value in cases like for example the column braced by a strut in middle . But again this need not be 100 percent to true , depends on the crossection of strut and connection of strut to web of column .
hat's off to you, never saw such series of videos with practical example, keep making such videos for staad also with real life example pictures.
glad you like it
Pls make more videos on steel structure. Your videos are very very very much helpful.
Thanks for uploading
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Very Informative... Thanks...
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Hi, could you pl let me know, when to consider Ky parameter and Kz parameter in STAAD-Pro?
Sir, Your videos very much helpful. Can you please explain the Lx, Ly and Lz parameter for rafter and which parameter should assign for which member of structure.
🆗
what is the safest apex deflection limit foe portal frames thanks
It depends on your code
hello sir, Ly and Lz parameters are only for column? or we need to define these values also in beam. Please explain.
Beam as well
Thanks Sir
For Valuable knowledge
Glad you like it
Now also column height is full height only if want to divide by 2 u should connect bracing at strut location.so then only from strut location bracing will transfer the load to foundation.if u dont provide bracing column will bend between foundation and eave joint only.
What is the connection type btw strut and columns?
Pls help me understanding unt and unb also. The design parameters we use in staad
Could you please make a complete detailed video about the releases given in staad pro considering different type of structures
It's really tedious..
Very informative video
Glad you liked it
@@TonmoyMaity sir can you teach me design of steel structure ?? I'll pay for it.
Can u plz give an example of the section whose Lx is different from Ly.
I will try to put a video on this
Lx,Lz,Ly all r depends upon GLOBAL coordinate or local coordinate?
Global
Local coordinate, because the effective length depends on the boundary conditions and orientation relative to the member’s own axis
also you have modeled purlins also....is it mendatory to model purlins or can we simulate the effect of purlin by just assigning the value of Ly to rafter members?
No never.. don't model it..just adjust the ly
What about Kz value?
khub bhalo buhiyecho bhai......eto bhalo dharona boi pore holo na kaj korte korte ?
Dada valo lagle ami dhonyo..dutor combination a obossoi.
If the main frame is moment connected then why have you taken the effective length as L it should be 0.65L as for moment connected frame the column is fixed on both side. And for longitudinal direction, column is pin connected so effective length is L
correct
Thanks for posting this question. I was also having same concern .now it is cleared .
Thanks for the video sir
Most welcome
Nice video thanks, quick one which chart did you referenced that showed different kl/r ratio for a particular yield strength
This is IS 800:2007
Thanks for the video sir..it is really good..kindly do video on staad design parameters such as UNL UNT UNB etc..
Okay sure
@@TonmoyMaity thanks a lot
Can you make a video of failure of bracing and column due to biaxial bending and shear??
I will try
Sir how to decide the column orientation plz tell me
Please watch my video : Axis of Structure and you will get your answer.
Excellent
Glad you like it 🙏
Thanks for sharing! your VDO is very helpful for young Engineer like me, if you can make the example of steel frame column design with Autodesk Robot is good.
Great suggestion!
Sir make videos on RCC structural engineer practical concept and real work explain
i will try
Thankyou sir
🙏
Awesome
Glad you like it
join korle koto maaash dhore katbe taka ?
One time
the lx and ly parameters are with respect to local axis of crossection , not on global axis . Please check I think there is an error in your presentation .
Following staaadpro conventions ,
Z is local axis and is major axis
Y is local minor axis
X is axis along length
Lz is used for buckling length for major axis
Ly is used for buckling length about y axis
Lx is buckling length for torsional buckling case .
Usually ly and lx are same value in cases like for example the column braced by a strut in middle . But again this need not be 100 percent to true , depends on the crossection of strut and connection of strut to web of column .
My intention is to convey the concept only.