Seismic Analysis Lecture #1 - Dirk Bondy, S.E.

Introduction and a history of structural design codes and seismic base shear in California.

[@Structure-Dubai]

whenever i need a revision, i revisit this channel, the most amazing professor i ever seen, Mr dirk bondy...

[@roctrader]

I wouldn't be fair if I did not state that the professor Dirk Bundy literally changed my life. Since his prestressed concrete classes, I'm also refusing to wallow in my filth! Thank you so much!

[@muricamarine9473]

yea no shit we are all lost as hell here college fucked us all

[@yemanemelkamu5682]

I ,from ethiopia ,appreciate your lecture video on sesemic analysis and express my heart felt gratitude for presenting such wonderful opportunity on you tube.stay shining

[@dirkbondy4231]

It's my pleasure

[@nicolasramirez3944]

This series is a treasure! Love the character and personality you're bringing to this. Thanks so much for sharing. Let's not let the robots take over, time for hand calcs!

[@dirkbondy4231]

Thank you so much, Nicolas!

[@mec007]

woo quedé admirado... no esperaba oír esa fantástica lección de superación, ingeniero, ¡me ha motivado mucho! Aunque mi inglés no es tan bueno capte el mensaje y la lección de este vídeo. Gracias por compartir sus valiosos conocimientos de vida y de vida profesional. ... tampoco quiero revolcarme en mi inmundicia.

[@pauliancabasag3598]

Hey Dirk thanks for having these lectures online. I was one of your students in ARCE/CE. Really enjoyed my time their. Please keep teaching and uploading videos online for industry continuing education!

[@dirkbondy4231]

I remember you, Paul! You came over from the CE department to take my ArcE class. I hope you are enjoying your career.

[@JeckyBrown]

Greatings and many thanks from Finland! Your approach changed my engineering life 😊

[@dirkbondy4231]

Great to hear!

[@lawangeenkhan5341]

A great perspective of dynamic analysis is stated here. Grateful to find it.

[@cyberjohn70]

So pleased to have found this…. wish you’d been the seismic professor during my UK MSc

[@marcelopardo]

Great lecture!!!... straight to what we need for design. Thank you!

[@hisanseid2008]

I am really grateful for your videos. God bless you

[@m3sman121]

I love all you lectures, and your way of teaching.

[@johnronel7980]

Sir, you are a hero! Thank you for sharing the story and thank you for helping us become better engineers through your videos. Anyway, we can help your cause?

[@sweetheartboy3011]

Thank You so much Sir, for giving us a helping hand.

[@dollarbulldog5492]

They are very nice stories and beautiful intro.I love it. Thank you Dirk.

[@joaquinfabrega]

I think we are the same age because we were thought structural analysis and design the same way. I agree 100% with you.

[@moralesfabricio]

I like your lectures Dirk bondy. Thanks for sharing here. Regards.

[@awsidrees9423]

Amazing effort !! thank you prof. for sharing your knowledge this course and the way you teaching it is very effective

[@arvinsantos7204]

This is the lecture class I'm looking for, I really understand from the concept core. Thanks sir Bondy

[@joydsfsd]

Thank you sir. After watching prestressed concrete videos i was eagerly waiting for your lecture in some other topics. Luckily again i got opportunity to learn frm u. Thank you .

[@ivangalik7848]

a smart man with conserved common sense

[@susankamathangaweera7657]

amazing!!! hardly ever could find this kind of a teacher in western.. seems like close to Asians....

[@adbara3624]

excellent and straightforward

[@saeeddabti972]

Thanks a lot you sir made it more easier

[@BarreraRomeroIngenieros]

Great lecture Professor

[@TheStructuralWorld]

Thanks for sharing! This is very informative!

[@muhammadusman1714]

Came here, watching your video on scaling of base shear. Glad to see you here too.

[@yancycddfdf]

Thank you so much, professor

[@javy20000ify]

Thanks you, from Panamá

[@user-ik7zg3pf9w]

We are proud of you !

[@anoopnambiar9447]

Wonderful lecture!

[@HR-dz5vu]

You're such a nice guy, god bless.

[@dirkbondy4231]

I appreciate that

[@hassanbasil1350]

Hello sir, i wanna ask u if we've 2 stories how does they affect on each other for base shear , it'll increase, decrease ,stay as it is (no effect), plz with Evidences !?

[@seanx.c7453]

Great content Dirk! I wish they taught this at MIT.... Do you mind sharing the name of the textbook that you are using for this class?

[@seanx.c7453]

Guess should email you instead after watching the entire video LOL still thanks a lot!

[@malekyahiaoui7795]

Thanks you alot

[@AdrianMunyua]

Asante sana.

[@m2390]

Sir , you mentioned there is a book at first of the lecture, what is the title of the book used for concrete steel buildings, how can I get it , appreciate your efforts, regards.

[@rahimghoroubi7206]

Sorry can I ask what is the name of the book you are teaching in this class, Do anyone know or how I can download that

[@neilbantugan]

Sir, is it possible that my frames are attracting more than the total base shear.. My moment frames attracts 130% of the base shear based on my ETABS analysis..

[@dirkbondy4231]

Hi Mark, That should be physically impossible. But it's good that you looked and caught that.

[@neilbantugan]

Hi dirk how do make columns attract 25% of total base shear and 75% on shearwalls? For example my columns only have 20% of the total base shear.

[@dirkbondy4231]

I'm not sure I'm following the question. In the US we are not allowed to have the non-seismic columns take any portion of the seismic base shear. 100% must go to the shearwalls. We insure that a number of ways, for example by pinning the end of each column in the mode. If you have a dual frame and shearwall system, I believe that the code says that you must design the moment frame system for a minimum of 25% of the base shear, regardless of what it attracts.

[@neilbantugan]

@@dirkbondy4231 thanks..how about in response spectrum, do i still need to satisfy these (25/75) because it might affect the scaling of static over dynamic shears. How should I do it?

[@obedtari8390]

Thank you sir very informative. What do you think about seismic analysis using computer software like Etabs, Sap2000, Staad Pro, RSA sofwares? Are they helpful? What is your recommendation to Praticing engineers out there on field? Hand calculation is better of Computer software?

[@dirkbondy4231]

Hi Obed, I'm a big fan of computer software in our practice. We use ETABS, but I think the ones you mentioned all do the same thing. What I'm not a fan of though, is people using software that they don't understand. That's why, in my personal opinion, students should at least have a very good understanding of two-dimensional response spectrum and modal analysis concepts, as well as rigid diaphragm force distribution with direct and rotational forces. And a good understanding of non-linear pushover analyses. That's what I cover in these videos.

[@obedtari8390]

Wow Thank you sir. Keep Teaching. I am interrested to know more on this topics on Dynamic Analysis. Keep Teaching, Keep Talking, Keep Sharing. Good Luck Sir

[@lawangeenkhan5341]

Sir, I mailed you but my email got blocked by some automated server. Please if you check it out i really need some help with your notes

[@abdulrahmanmoases3734]

Greet effort Prof. Can you please till me the title of the book that you are taking about?

[@raphaelnicocastaneda5605]

Very informative lecture. Can I request a copy of the notes for this lecture series? thanks!

[@kasturchakraborty]

Thank you so much Professor. What is the name of the book?

[@rashaalmsaddi5319]

thank you , please the link of the book you talked about

[@treft3853]

Just audio problems Rest awesome 👌

[@zjin2467]

谢谢

[@josephazizaziz1066]

Can I buy your interesting book

[@marcfebra6042]

hi engineer. do you have nonprestress concrete videos?

[@dirkbondy4231]

Yes, I have seismic design videos also.

[@Inspirational_Homes]

Is the design according to the ACI code?

[@dirkbondy4231]

No. Seismic loads are developed using the ASCE 7 Code. Concrete seismic members would then be designed using those loads in accordance with the ACI Code, but this series focuses on the development of the seismic loads and not the design of the members.

[@Inspirational_Homes]

Right sir,i wish you could make a series on how to design such concrete structural members Oh Yes And thank you for replying

[@beenay18]

what is the title of the book you are talking about?

[@dirkbondy4231]

Unfortunately, we have been too busy with new projects to complete the book. However, if you email me at [e-mail] I will provide a PDF of the current progress.

[@beenay18]

@@dirkbondy4231 Oh! Thank you very much sir! so happy that I am getting your book. Best Regards.

[@petevatuloka9182]

Hi Professor, May I get a copy as well?

[@sirabduo9363]

Is this course by ASCE ??

[@dirkbondy4231]

No, this is just me :)

[@MohamedHaji-k5j]

how can I contact you?

[@dirkbondy4231]

[e-mail]

[@walidtlili7415]

I bet that guy in the meeting was Dr Florian AAlami :p

[@Liuecho]

Do you use asce 7-10?

[@dirkbondy4231]

Yes