Precast Concrete Vs Steel Frame Who wins?

Precast Vs Steel is a common debate at the start of a project, Which one will be better? Which one will be cheaper? it is better for the building to be a precast structure, or will a steel-framed building be cheaper? I will go through the benefits and drawbacks of comparing both Precast Concrete and Steel Framed Construction. to help decide between Precast and Steel. In the end, the answer is not as clear cut as you may think and in the end, most structures are a combination of steel framing and Precast concrete.
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[@ahmedyildirim]

What a great video Brendan, thanks a lot, I follow your videos as a just starting master student in structural engineering :)

[@BrendanHasty]

Good luck on your studies!

[@sealoftheliving4998]

Question 1: Which of the 2 can survive in 7 to 9 intensity of Earthquake???? Question 2: If the land to construct for the Project has lots of stone. Which of the 2 is more capable and advantage to build 5 to 7 storey Commercial Building?

[@malikdaniyel146]

Love the comparison between the two structural elements. Overall, choosing one over the other is the cost, functionality and location. Stay safe, Malik

[@BrendanHasty]

Thanks for watching every video of mine Malik! Appreciate it mate.

[@deyuhao8538]

Interesting comparison between the two. Thanks.

[@BrendanHasty]

Glad that you enjoyed it Deyu.

[@lingyunyuandao5857]

Love your sharing . Thank you Brendan.

[@BrendanHasty]

Glad you enjoyed it

[@dykodesigns]

I would say that both types of systems also a allow for circulair construction when designed for reassembly in mind. This would be easier with steel but this also possible with precast depening on the types of connections. There are now some alternatives to grouted connections that make it possible to take a precast building apart in a non-destructive way. In the city of Arnhem in the Netherlands an old office building from 1987 that was built with traditional grouted conenctions has been disassembled, and certain elements such as the hollow core floor are re-used for a new building. In this case they simple cut the elements loose with a diamond saw. In think that in the future we might see more Peikko type conenctions that allow precast structures to be assembled / dissambled like steel frames. This is already common with precast systems for low-rise housing that uses very simple bolted or welded steel connections.

[@BrendanHasty]

Hi DYKO, reuse will become more and more common. still would still be more reuseable as your can melt it down and form it into a new form this is much harder for precast. but I think it will become more common for building to be design from cradel to grave.

[@manasavuibaubatiwale3593]

Hmm... Interesting presentation mate 💯 First time I'm this early 😊

[@BrendanHasty]

Hi Manasa, glad that your found it interesting. Thanks for the support.

[@hfmleasing444]

Great information 🎉🎉🎉🎉🎉

[@HappyHouseIdeas]

Hi sir. Can you make a video of checklist for inspectioning a building after an earthquake.

[@mohitvats2211]

Excellent 🔥

[@BrendanHasty]

Thanks for the support Mohit.

[@bencano3049]

Hi Brendan, thanks for making great content. i really enjoy your videos! do you have any videos about material selection for structural columns? specifically what I am interested in knowing is why (in my area of austin tx) is it so common to see HSS columns as opposed to wide flange on structural engineer drawings? as a steel fabricator it seems like you could easily sub out HSS for an i-beam which is cheaper and opens up more options for column to beam connections. let me know if you can point me to any videos that discuss this topic. thanks!

[@DeepakKrishna11]

Very interesting and precise showdown Brendan. Very helpful in getting a rough idea which method is better.

[@BrendanHasty]

Hi Deepak thanks for watching, know the benfits and drawbacks is always important.

[@MaxStArlyn]

@@BrendanHastyI have noticed the precast concrete homes I have seen installed, don’t have specific additional insulation. Precast concrete has great thermal mass, is that why there is no insulation needed?

[@tribby3d]

Excellent video, Brendan! Would be interesting to hear a similar comparison with timber.

[@BrendanHasty]

Hi Tribby, thanks for the suggest and support. that will be a intresting one it will be added to the list.

[@alexsander12ful]

Very interesting video, thanks! However, regarding the eco-friendly point I think it needs to be argued that you have to look at more than just the structural elements, it's the finished building that counts. For instance, the steel framing will need fire and sound insulation whereas this is already "covered" by the concrete being heavy and naturally fire proof. Maybe do a video on that some day?

[@dickeseo6283]

Hello which is more durable precast or steel if you apply to curvature designs?

[@patelhani5389]

Nice videos sir , I suggest you to make one telegram or what's app group so we can share doubts and other things which helps you improve knowledge of community ..

[@allenfrostjames5521]

Hai Brendan .. I have just began my career in structural engineering from India. I am trying to move to UK for a structural Eng .job.. But i am not confident in my knowledge of RCC design , also I am struggling to understand British Codes and Design ... Could you Recommend some Civil Engineering books based on british codes that completely teaches the RCC Analysis & design , based on British Standards so as to clear my basics first ..I would highly appreciate if let me know the books..

[@yeaplian7389]

Excellent presentation. How about the cost comparison between precast and cast in situ?

[@BrendanHasty]

Hi Yeap, I will do a comparison on these. But for a sneak peek precast wins on cost.

[@michaelm-bs2er]

Just on sustainability, could pre-caste not also be reused? Say you have an old building and it's demolished, couldn't the old bricks and concrete pieces be taken to a plant, broken down further and then reused as aggregate?

[@edmarferreirajunior724]

In my country (Brazil) steel structures are generally more expensive than precast concrete structures. We manufacture our own steel sections, but reinforced concrete is by far the most used structural system here.

[@BrendanHasty]

Hi Edmar, it is the same in australia as well. tho in places like the US steel is more common. thanks for watching and the support.

[@sealoftheliving4998]

@@BrendanHasty I saw in New York. Most of the Building are Steel Frame. US has strong steel frame. Its US made. Not china😁😁😁😁😁

[@leonardoaguilar9496]

What about costs? Manhours? Building time?

[@thekinarbo]

What about natural disaster resistance? For example, in the US where tornadoes are prevalent, precast or even poured in place concrete gets the win, yes?

[@diarmuidoreilly100]

What about fireproofing???

[@JasonGuan-w6k]

how about fire engineering? it seems this important factor was not being discussed

[@Ooze27]

Precast usually wins on cost. But the transportation etc. can be challenging depending on the site location. One other thing that is very important, again, depending on the building is fire resistance on which concrete has an enormous upper hand. That said, although our curriculum is more oriented towards concrete, i always prefered steel structures, way more flexibility on how you design your structure, no pun intended.

[@BrendanHasty]

Thanks for sharing!

[@face_in_the_crowd]

I disagree with your no. 10 precast can be made hollow core to allow for services to be ran through a structure.

[@dyfrigshandy]

How do one combine both together?

[@BrendanHasty]

Hi if you cast in Connection plates into the Precast you can easy join Precast to Steel.

[@dyfrigshandy]

@@BrendanHasty ehmm, maybe if you make video of concept planning explanation about it, i would highly appreciate it

[@mohammedlasmi649]

Is precast concrete resist to earthquake?

[@diemes5463]

Yes, all depends on the design, check out precast hybrid moment frames for an example

[@BrendanHasty]

Hi Mohammed, you can design precast building to resist earthquakes just need to carefully detail all the connections.

[@xhiping5190]

steel builds are lighter and more earthquake resistant. steel building is more flexible and easy to repair. if steel building collapse. it does not take many lives because it does not have concrete made floor.

[@mohammedlasmi649]

Thanks too much engineer

[@IndianWarriors]

Great content. Slower speed of speaking can add more value to content.

[@BrendanHasty]

I will try my best and thanks for your support!

[@charlo90952]

you can reduce playback speed. go to gear icon.

[@tommytran5962]

I think the speed is perfect

[@tommytran5962]

@@BrendanHasty Please don't change the speed. It's a good pace.

[@IsaacConejo]

Can you slow down and speak clearer.

[@IsaacConejo]

Or

[@IsaacConejo]

Nevermind captions understands.

[@BrendanHasty]

Thanks for your feedback, will do!

[@BrendanHasty]

@Steven Hellwig Thanks mate!