Thanks for great job. Its beautiful. I have same questions as like Motaz Fdlalmula. 1. Why acceleration instead of load pattern or mode? 2. The building is symmetric. The stiffness variation (Sw, columns & Beams) along two directions are nearly close. But "Push y" shows a lot plastic hinge. Building goes to failure mode only 3 steps. I think the Degree of freedom (DOF) of Monitored displacement for Load case "PAy" have to "U2" instead of "U1"
Thank you, sir, for the video about Pushover Analysis. I have a couple of questions. My first question is, some hinges showed red colour which means the structure will fail as the hinges break, what do we do to prevent the hinges from breaking by showing either green, pink or blue colours, so the structure won't collapse. The second question is can we perform Pushover Analysis without linear analysis and get the reinforcement? And at what level do we consider Pushover Analysis even after performing the linear analysis? Please sir, also try to do a video for Nonlinear staged construction so we can understand when to perform such analysis. Thank you sir
Pushover analysis is a performance based analysis, that means you can have an idea about how your structure will behave during earthquake-for that you need to design it first. After the pushover analysis if you know that some of members from your structure are going to fail, then revise their dimensions and recheck for pushover analysis.
why we perform pushover analysis for RC buildings? As concrete is having different property than steel .We assumes after a certain load the plastic hinges are formed in the steel but the failure mechanism for RC building is different
hello sir. i wanna ask something. why in minutes 19:59 you don't use live load for non linear static , but only dead load ? what the reason ? thank you
How to increase the number of steps in deformation shape Iam getting only x direction that is pax in deformation shape how to get in pay... Pls let me know
Thank you for the video. I have one question, before performing the pushover analysis, the structure must be designed to earthquake loads or to gravity loads? Also do I have to run with the inelastic or with the elastic spectrum? thanks
Thanks for your job. But I have a question: I have found that: when two PMM hinges are inserted at the same point ( as you did in the tutorial - hinges for Pax and Pay load cases ) displacement capacity increase almost twice than just one hinge is inserted; In the case we must push the building to -X and -Y directions and four PMM hinges will be inserted at the same point then displacement capacity increase so much ?
Sir before Push over analysis the reinforcements found from the linear analysis should be saved and the hinge properties should be defined by the program automatically as per these reinforcements. But in your presentation it is not clear how you saved these reinforcements. Could you please clarify. Thanks in advance
After running design we have moved to Pushover analysis. That last design reinforcement is saved as ''Current Design" in the program Automatically. There's no manual option to save the reinforcement. That's why there's a option in Auto Hinge assignment Data ''Reinforcing Ratio from -Current Design". Thanks for your valuable comment.
@@Decodebd Sir thank you very much for your response but after the design( before the pushover) you unlocked therefore as far as I know all information related to the reinforcements is lost when it is unlocked. Am I wrong?will
Hi sir can u tell me in model analysis if the time period is more in mode 1 or rotation is more wht is the procedure to control the time period and rotation like which one we hv to reduce or increase (stiffness or mass)
Hello sir While I m using same process in SAP 2000 software for PA, I m getting lots of null steps generated and only few saved steps produced.. So can u tell me how to reduce that null steps ? I m using user define hinges...
কত % স্টিল ব্যবহার করতে হবে একটু জানাবেন,আর স্পেশাল শেপ কলাম যেমন L,T,+ সেপ কলামের ক্ষেতে এভাবে এনালাইসিস করলেই হবে?কলাম গুলোতে কত % স্টিল ব্যবহার করব একটু জানাবেন
thank you for making such nice information in this video I tried so many times my structure doesn't enter into nonlinear state please tell me what should I do...
Assalamoalikum dear sir, thanks a bunch. Today l learnt new thing and it was a smashing video. May Allah prosper in your life. Sir one humble request to you that is make one video about Time History analysis according to previous LRB Damper video. And i am waiting for earlier question about LRB what i did in comment box. please sir let me know
Yes, in pushover Curve The Demand Spectrum curve is intersected with Capacity curve to get performance Point, this Demand Curve can be generated from Response Spectrum Analysis 👍
Thanks for great job. Its beautiful.
I have same questions as like Motaz Fdlalmula.
1. Why acceleration instead of load pattern or mode?
2. The building is symmetric. The stiffness variation (Sw, columns & Beams) along two directions are nearly close. But "Push y" shows a lot plastic hinge. Building goes to failure mode only 3 steps.
I think the Degree of freedom (DOF) of Monitored displacement for Load case "PAy" have to "U2" instead of "U1"
So how do we finally identify which structural parts need retrofitting
You are the best sir❤️ all the respect
Thank you, sir, for the video about Pushover Analysis. I have a couple of questions. My first question is, some hinges showed red colour which means the structure will fail as the hinges break, what do we do to prevent the hinges from breaking by showing either green, pink or blue colours, so the structure won't collapse.
The second question is can we perform Pushover Analysis without linear analysis and get the reinforcement? And at what level do we consider Pushover Analysis even after performing the linear analysis?
Please sir, also try to do a video for Nonlinear staged construction so we can understand when to perform such analysis. Thank you sir
Pushover analysis is a performance based analysis, that means you can have an idea about how your structure will behave during earthquake-for that you need to design it first. After the pushover analysis if you know that some of members from your structure are going to fail, then revise their dimensions and recheck for pushover analysis.
@@vitthaldoiphode5958 Does the structure have to be designed to earthquake loads or just gravity loads? thanks
hello sir,
i've tried this tutorial to perform the pushover analysis but why can't i get the performance point?
Hi sir hinges point 14:54 highlight avvatalledu sir 2020 etabs software ki em cheiali sir plz reply
In PAy case...did you forgot to assign U2 direction in "DOF/JOIN" or is it correct?
why we perform pushover analysis for RC buildings? As concrete is having different property than steel .We assumes after a certain load the plastic hinges are formed in the steel but the failure mechanism for RC building is different
hi sir .. How to resolve error in assigning hinges and error in reading arguements during analysis in etabs 2017
Sir how can we apply incremental lateral load in pushover load case???
Can the allowable displacement be reduced and rerun try to get passed the failed hinges?
Sir in the push over analysis how to remove the appied hinge to the column and beam.please tell me sir
hello sir. i wanna ask something. why in minutes 19:59 you don't use live load for non linear static , but only dead load ? what the reason ? thank you
how did you display demand curve ?
how to assign hinge for composite column?
How to increase the number of steps in deformation shape
Iam getting only x direction that is pax in deformation shape how to get in pay...
Pls let me know
Exceptional video! After this can we perform performance check in define option? I'm not able to do performace check !
hello, i need your help please asap, how to assign the rft in the shear walls in etabs?
Thank you for the video. I have one question, before performing the pushover analysis, the structure must be designed to earthquake loads or to gravity loads? Also do I have to run with the inelastic or with the elastic spectrum? thanks
Thanks for your job. But I have a question:
I have found that: when two PMM hinges are inserted at the same point ( as you did in the tutorial - hinges for Pax and Pay load cases ) displacement capacity increase almost twice than just one hinge is inserted; In the case we must push the building to -X and -Y directions and four PMM hinges will be inserted at the same point then displacement capacity increase so much ?
Ubieras mostrado la curva en PAy, para ver su respuesta!
Thank you sir, could you please answer my question. This pushover procedure accounts for just the fundamental mode right?
How about if i use Composite Column? What kind of type Hinge Property?
Helpful. Thank you 🙏
Glad it was helpful!
While defining PAy case, you didn't change monitored displacement direction to U2. That is why the structure failed in Y direction analysis.
Thanks for the identification/mark.
Thank's very much...it is really helping...
Wc
Very nice Video sir, I'm from Indonesia. I have a question. Why you choice 300 mm for push Displacement ? is that the provison ?
Thank you
same question here
Do we get story stiffness in pushover analysis
Wt is the purpose pf pushing over analysis
Sir before Push over analysis the reinforcements found from the linear analysis should be saved and the hinge properties should be defined by the program automatically as per these reinforcements. But in your presentation it is not clear how you saved these reinforcements. Could you please clarify. Thanks in advance
After running design we have moved to Pushover analysis. That last design reinforcement is saved as ''Current Design" in the program Automatically. There's no manual option to save the reinforcement. That's why there's a option in Auto Hinge assignment Data ''Reinforcing Ratio from -Current Design". Thanks for your valuable comment.
docs.csiamerica.com/help-files/etabs/Menus/Assign/Frame/Hinges/Auto_Hinge_Assignment_Data_Form.htm
@@Decodebd Sir thank you very much for your response but after the design( before the pushover) you unlocked therefore as far as I know all information related to the reinforcements is lost when it is unlocked. Am I wrong?will
LAST DESIGN PROPERTY REMAINS IN ETABS PROGRAM, SEE THE LINK I SHARED ABOVE.
@@musayildirim1752 i think for this reason the building get a fail in Y-direction
Can you send me the .EDB file please..?
Great video
One question regarding pushover analysis...is it possible to input user defined lateral load pattern in etab
Hi sir can u tell me in model analysis if the time period is more in mode 1 or rotation is more wht is the procedure to control the time period and rotation like which one we hv to reduce or increase (stiffness or mass)
Don't we get story stiffness for pushover analysis
Hello sir While I m using same process in SAP 2000 software for PA, I m getting lots of null steps generated and only few saved steps produced.. So can u tell me how to reduce that null steps ?
I m using user define hinges...
Excelente!!
কত % স্টিল ব্যবহার করতে হবে একটু জানাবেন,আর স্পেশাল শেপ কলাম যেমন L,T,+ সেপ কলামের ক্ষেতে এভাবে এনালাইসিস করলেই হবে?কলাম গুলোতে কত % স্টিল ব্যবহার করব একটু জানাবেন
Hello sir...can you please design an over head water tank in etabs
Thanks for sharing your knowledge
So nice of you
Thank you sir. Can teach puchdown analysis.
Hello sir, what is your reference of 300mm push displacement?
Allowable displacement you will allow as per design code.
25% live load?
thank you for making such nice information in this video I tried so many times my structure doesn't enter into nonlinear state please tell me what should I do...
have u solved the problem? and how please?
thanks .it is really helping..
EXCELENTE video muchas gracias.
Thanks
Great video, thanks!
can you make a video on numerical example of distribution of lateral force from diaphragm to columns?
or just recommend me a book that has such numerical examples.
up
hello my dears thank you so much for your it is great work if you can please install creating model at start
Assalamoalikum dear sir, thanks a bunch. Today l learnt new thing and it was a smashing video. May Allah prosper in your life. Sir one humble request to you that is make one video about Time History analysis according to previous LRB Damper video. And i am waiting for earlier question about LRB what i did in comment box. please sir let me know
Clarified. Check that comment. Will try for TH Analysis.
@@Decodebd Thanks a Million sir
please make a tutorial on manual calculation of push over analysis or recommend me a book where I can find such numerical example.
22.20
THE BEST CONTENT
Thanks
very helpful
why 0.1 & 0.9 ??
. we used to take 0.01 & 0.99
Explained in the tutorial.
Amazing ..
Do I need to do response spectrum analysis before push over analysis?
Yes, in pushover Curve The Demand Spectrum curve is intersected with Capacity curve to get performance Point, this Demand Curve can be generated from Response Spectrum Analysis 👍
thanks
nice