Structural Central

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@SaraChoufi-p7z Ай бұрын

Valuable Video 🤩 after we calculate the bearing and tearout and shear resistance have we compare it with shear force on the bolt?

@StructuralCentral Ай бұрын

The strength of each individual bolt is the minimum of its bearing, tearout, and shear strengths (including safety factors), so you must make sure that this exceeds the applied shear force. An example connection with 3 bolts is discussed in the video at 6:12. The applied load cannot exceed 62 kips. (This is just considering the bolts, so the actual connection strength may be lower when you consider the other limit states.)

@SaraChoufi-p7z Ай бұрын

@@StructuralCentral do you have a structural private courses?

@StructuralCentral Ай бұрын

Sorry, but I don't offer anything like that. University programs are where you can get a broad understanding of the structural engineering field. Here's also a great list of books and resources for each of the common structure types. www.eng-tips.com/faqs.cfm?fid=2189

@SaraChoufi-p7z Ай бұрын

@@StructuralCentral Thank you , i appreciate it

@StructuralCentral Ай бұрын

You're welcome. You can also subscribe too if you'd like to see more videos in the future :-)

@bendeng2768 Ай бұрын

The visual graphics are extremely helpful to understand the concept. I really hope they have more videos like this.

@StructuralCentral Ай бұрын

I agree that using animations is the best way to clearly demonstrate complicated topics. There are currently five Structural Central videos, but more will be added in the future so remember to subscribe.

@bendeng2768 Ай бұрын

Awesome video!

@StructuralCentral Ай бұрын

Thanks for watching! Subscribe to see more structural engineering videos in the future.

@thasirukarunarathna4586 2 ай бұрын

Thanks for the video. Can you do a video for slip critical connections too.

@StructuralCentral 2 ай бұрын

That's a great suggestion! It's already on a list of potential future videos along with a video about prying action force on bolts.

@rupeshkhandekar6340 4 ай бұрын

Thank you very much for your this video. I would appreciate it if you could clarify the column cap plate connection design check.

@StructuralCentral 4 ай бұрын

You're welcome! There's multiple possible configurations for connections with cap plates so I can't really make a general comment about their design. Is there something that you were specifically wondering about?

@saqibhayat9588 4 ай бұрын

Love the 0:50 book opening aound. Reminds me of SEGA games of my childhood. 🎉❤

@StructuralCentral 4 ай бұрын

Haha, I can see that. I'm glad this structural engineering video could give you some nostalgia!

@NachoPage92 4 ай бұрын

Gracias por compartir el material. Saludos!

@StructuralCentral 4 ай бұрын

¡De nada! Me alegra que te haya gustado. ¡Saludos!

@SouvikCivil 5 ай бұрын

Thanks for explanation, very useful.

@StructuralCentral 5 ай бұрын

You're welcome! I'm glad you found it to be useful.

@RunnerProductions 6 ай бұрын

Nice content, can you publish something about dig depth and concrete diameter size to hold any type of pole or tall structure built on 'stilts'?

@StructuralCentral 6 ай бұрын

Determining the soil pressures and stability of an embedded pole is a subject that is both interesting and complex, so it would be a good topic to make a video about. I'll keep that idea in mind. Thanks for the suggestion!

@owenk7769 6 ай бұрын

Great Video. I love how you listed out all the equations and the code references. The graphic are also very helpful. Thank you for sharing, and I look forward to your future videos.

@StructuralCentral 6 ай бұрын

That was very thoughtful and kind. I look forward to continuing to help others gain a deeper understanding of structural engineering in a simple, clear way.

@chalelitowelding6688 6 ай бұрын

Thanks, helpful info for my cweng exam

@StructuralCentral 6 ай бұрын

That's great! Best of luck to you :-)

@elbahja03 6 ай бұрын

This was very nicely done, I appreciate the effort. Please keep posting more videos like this.

@StructuralCentral 6 ай бұрын

Thanks for the kind comment! Additional videos are planned, but more focus is currently being given to improving www.structuralcentral.com.

@alt._.accountYT 8 ай бұрын

Wow now i can see my desing from other point of view, good video. When more?

@StructuralCentral 8 ай бұрын

I'm glad could offer you a different perspective! You can watch all of the other Structural Central videos by checking out this playlist: kzbin.info/aero/PL1FuGlk3r9cSAOkPoh0p-sjDrmmpICqev

@StructuralCentral 8 ай бұрын

You can also subscribe so that you don't miss any future videos!

@faizulzuraimi5393 9 ай бұрын

Would the same calculation also apply if the load is applied in normal direction//out of plane to the weld? Ie imagine i have a pipe leaking. I plan to patch it up with a steel and weld via fillet weld. The force (water pressure from the hole) is acting in normal direction to the steel plate.

@StructuralCentral 9 ай бұрын

I can confirm that for fillet welds, when the load is being applied normal to one of the steel plates (like as shown at 0:40), the fillet welds still use the Shear section from Table J2.5, so the calculation should not change. You likely can also use the 1.5 directional strength increase factor since the weld axis is 90 degrees from the applied load direction. (AISC 360-22 now limits this to 1.0 for fillet welds at the ends of rectangular HSS loaded in tension.) You're on your own for determining if that's a good way to patch up a leaking pipe, though ;-)

@ludwigvonrothbard1207 10 ай бұрын

Thank you. Very well done, interesting and helpful.

@StructuralCentral 10 ай бұрын

Thanks for the comment! I'm glad you found it to be helpful.

@ANJA-mj1to 10 ай бұрын

I have seen your presentation before ~ year an add notes. As you have said snowfall and drifting of snow on roofs as well as in roads, harbors, ports, dams, karst buildings, airpots snd railways must be removed. You give me path to see how to start research existing method and combine in a model for wind and snow simulation. Many researchs use FLOW-3D with general purpose for transient fluid flow phenomenon that runs under UNIX on workstation computers. To make real case we must imply geometry from both CAD models and digital terrain models must be converted to an appropriate format. Meteorological and hydrological data for boundary conditions as the sources usually field measurements at specific places. With this data we figure vector plot of wind speed and direction for horizontal cladding with different placings of gaps as well as a three-dimensional simulation of snowdrifs by numerical discrezization of two phase problems for a simplified drift-flux model and solutions similar to real measurements. Like you content as well as The Method called SNOW - SIM.😊

@StructuralCentral 10 ай бұрын

Understanding the intricacies of simulating wind and snow dynamics is no small feat. Wishing you the best in your endeavors as you navigate this complex analytical terrain!

@ANJA-mj1to 10 ай бұрын

@@StructuralCentral I should like to express immediately my deep gratitude to yours support and helpful sugestions which intrigated me before and contributed increasing this topic. Snowdrift and snow deposition have always been major problems and it will be. Numerical simulation of snowdrift with aspects on snowdrift experiments and process need to consider the diffusion theory and The finite - volumen solution as snow represents phase. Like you have said it is quite task to find solution or a further approach to the basic drift-snowflux rutine as well as investigation into complex geometry of the simulation where the snow will deposit, not as a exact quantity calculation. Mixture density, velocity, dispersed phese mass conversation, i.c. is BIG TOPIC and I am so truly delighted to give me INPUT BEFORE ONE YEAR. Yours topic is brilliant for researching energy efficiency in the enviroment also with quantum dinamics. I wish you all the best in further topics and "snowing", as well, again THANKS. 😊

@IvoCampi1 Жыл бұрын

Great explanation, thanks!

@StructuralCentral Жыл бұрын

I'm glad you found the information to be clear and useful!

@christopherchiaro2328 Жыл бұрын

Awesome videos thank you

@StructuralCentral Жыл бұрын

Thanks for watching!

@AnbazhaganRamasamy Жыл бұрын

Thank you for the valuable information. Is there any similar available for aluminium welded connections?

@StructuralCentral Жыл бұрын

There are special considerations that are unique to the design of aluminum welded connections. In Chapter 20 of the 2021 International Building Code (IBC), they direct you to the 2020 Aluminum Design Manual for the strength of aluminum used for structural purposes in buildings and structures. You may also be able to find some information about welding aluminum in American Welding Society (AWS) D1.2, Structural Welding Code - Aluminum. I hope this helps!

@Wilders53 Жыл бұрын

You forgot something! If a guy named Scott Hall welded on it add 99% strength to whatever the product is 😁👍

@StructuralCentral Жыл бұрын

Haha, we'll have to talk to AISC about adding in a 1.99 Sh factor to Fnw whenever you're the welder. I'm pretty sure, though, that you'd end up with more work than you could possibly handle!

@Vkmummer Жыл бұрын

Hi, Can you post a video on 2 side/3side displacement of a base plate with stiffner plate/bracket along with the tension/shear force and moment resolved tension force on bolts

@StructuralCentral Жыл бұрын

Thanks for the suggestion! I always appreciate hearing what people would like to see next. I am planning on making a video about the design of baseplates. Subscribe so you don't miss it :-)

@SrilankanProud1 Жыл бұрын

AMazing! You are the best!!! Thank you so much

@StructuralCentral Жыл бұрын

Thank you so much for the kind words!

@SrilankanProud1 Жыл бұрын

Amazingf! thank you so much!

@StructuralCentral Жыл бұрын

Thank you so much for the comment!

@trananh1832 Жыл бұрын

Wow, So wonderful! I'm from Viet Nam. Hello everyone!

@StructuralCentral Жыл бұрын

I'm so glad that this video is relevant to people all around the world!

@FelixMatveev Жыл бұрын

Very interesting!

@StructuralCentral Жыл бұрын

Thank you! At first glance, many people tend to underestimate the complexity involved in the design of welds.

@Xeirus Жыл бұрын

When using an I.C. Method, do you need to provide a weld of uniform leg size?

@StructuralCentral Жыл бұрын

I don't see anything about the methodology that would preclude you from using it with welds that have different leg sizes. The formulas for Δu, Δm, and R all include "w" so you would just use the applicable fillet weld leg size there. I don't know if testing has ever been performed on weld groups consisting of welds with different leg sizes to confirm that the method is still applicable, though.

@Szhihihihihihi Жыл бұрын

Thank you !

@StructuralCentral Жыл бұрын

You're welcome :-)

@Szhihihihihihi Жыл бұрын

Thank you !

@StructuralCentral Жыл бұрын

You're welcome :-)

@umutyigittorun Жыл бұрын

How do we calculate the snow drift if the roof is flat but there is a air vent or a chimney etc. on the roof just like in the 'Drift Snow Load' part of the video?

@StructuralCentral Жыл бұрын

Take a look at the "Roof Projections" section of ASCE 7 (Section 7.8 in ASCE 7-16). Projections on the roof get designed as windward drifts (0.75 factor on hd) using the length of the roof upwind or downwind of the projection. Also, note that for projections less than 15 feet long, drift loads are not required. Hope this helps!

@umutyigittorun Жыл бұрын

@@StructuralCentral Thank you, I will take a look now. Much appreciated

@furkantoraman8987 Жыл бұрын

hello, how should the snow load be calculated on multi span roofs? I couldn't find anything about it in asce7-16. Should it be calculated by the Sawtooth Roof division?

@StructuralCentral Жыл бұрын

I'm not sure exactly what roof geometry you're referring to when you say "multi span roofs", but I can point you to some cases that require special attention. If your roof surface is supported by continuous, multi-span beams, you'll need to consider multiple load patterns with full and partial loading on different spans per ASCE 7-16, Section 7.5.1. If your roof consists of different slopes that merge together, then the sections on Multiple Folded Plate, Sawtooth, and Barrel Vault Roofs may apply. (You can do a Google Image search for these terms to see exactly what they are.) Section 7.4.4 requires you to use Cs = 1.0 and Section 7.6.3 requires you to use unbalanced snow loads with higher loads in the valleys and lower loads in the ridges. I hope that this helps!

@furkantoraman8987 Жыл бұрын

@@StructuralCentral First of all, thank you for answering my question. I'm sorry for my bad english. The roof type I mentioned is referred to as "Multi span roof" on page 24 of EN 1991-1-3 in Eurocode. there is also this type of roof at the bottom of page 33. How should the snow load calculation of the roof type formed by combining two or more roofs like this be done side by side? Snow will accumulate at the junction of the two roofs due to snow drift and how should this be calculated? thanks

@StructuralCentral Жыл бұрын

The Eurocode examples of "multi span roofs" that you mentioned appear to be referring to the same thing that ASCE 7-16 calls "sawtooth roofs". Take a look at ASCE 7-16, Figure 7.6-3 to see the design load cases. They account for the additional snow that accumulates in the valleys.

@furkantoraman8987 Жыл бұрын

@@StructuralCentral Thank you so much 🙏

@nabilap6856 Жыл бұрын

you save me

@StructuralCentral Жыл бұрын

Great! Always happy to help.

@landricojr.garcia6505 Жыл бұрын

Very good explanation, clear and very understandable

@StructuralCentral Жыл бұрын

I'm glad you found the explanation to be clear since there's a lot of steps to determining all of the weld stresses, especially when it comes to the Instantaneous Center of Rotation Method.

@jaychen8214 Жыл бұрын

Thank you for the video! How to calculate the bearing stress if threads are not excluded as shown in the right joint when the video is at 2:12?

@StructuralCentral Жыл бұрын

The threads do not affect the bearing strength of the bolted connection (ΦRn = Φ C d t Fu). You get to use the same value for the bolt diameter, d, regardless of where the threads end up in the joint. AISC 360-16, Commentary Section J3.10 states: "...the same bearing value applies to all joints assembled by bolts, regardless of fastener shear strength or the presence or absence of threads in the bearing area." The thread location only affects the bolt shear strength (ΦRn = Φ Fnv Ab). When the threads are located at the shear plane, the value for Fnv that you get from Table J3.2 of AISC 360 has a 0.8 factor built into it to account for the reduced cross section. (Fnv for Group A, A325 bolts is 68 ksi when threads are excluded from shear planes instead of 54 ksi when threads are NOT excluded from shear planes.)

@jaychen8214 Жыл бұрын

@@StructuralCentral Thank you very much for your detailed explanation.

@nirmalsurendranmenon7049 2 жыл бұрын

A c channel is bolted eccentrically to a concrete wall and the unbolted side of the c channel is supporting a cable tray. The bolts are 6 numbers in 2 columns 6 inch apart. How do I know if it would be acceptable if we reduce the 6 inch to 4 inch (between the bolts)

@StructuralCentral 2 жыл бұрын

It is not possible to determine if the reduced spacing will be acceptable with the information that you have provided. It's necessary to know the magnitude and location of the load from the cable tray, the bolt size and material, the channel size and material, and the details about how the bolt is anchored into the concrete wall. Decreasing the spacing between the bolts will result in increased reactions, thus decreased load carrying capacity. I recommend you hire a local structural engineer to answer your question. Best of luck to you!

@nirmalsurendranmenon7049 2 жыл бұрын

@@StructuralCentral The cable trays are supported on hangers and this c channel is used as a additional rest

@FrankTheTankX4 2 жыл бұрын

Can you share where you got the uneven load distribution equation for the bolts at 1:48min in the video?? Thanks!

@StructuralCentral 2 жыл бұрын

Check out the commentary for Section J3.6 of AISC 360-16. The paragraph right after they show Equation C-J3-4 discusses everything that is shown in the video about determining Fnv. I hope that helps!

@raretapes8057 2 жыл бұрын

Very good graphics and clear, helpful explanation. Thank you very much.

@StructuralCentral 2 жыл бұрын

You're welcome.

@bishalnayak6162 2 жыл бұрын

Super duper is helpful. Please make some more videos on different topics of structural.

@StructuralCentral 2 жыл бұрын

I'm glad it was helpful. More structural engineering videos are on their way!

@umithenkoglu334 2 жыл бұрын

Thanks for the nice explanation.

@StructuralCentral 2 жыл бұрын

Thanks for the comment! I'm glad you found the video to be helpful.

@nawaf8099 2 жыл бұрын

Very helpful channel ,please keep going

@StructuralCentral 2 жыл бұрын

That's the plan!

@zachydrogeo 2 жыл бұрын

Thank you for the high-quality video! Theoretical videos with good graphics and clear explanations for Steel Design are lacking on youtube.

@StructuralCentral 2 жыл бұрын

No problem! I'm happy to be able to fill that niche.

@zachydrogeo 2 жыл бұрын

@@StructuralCentral I’ll be the first one on the Patreon! Anything to provide future engineering candidates with better study resources. May I suggest collaborating with The Efficient Engineer? They seem to be the only other similar creator. There’s definitely a demand. I hope the channel takes off!

@ВладиславДанько-ы4с 2 жыл бұрын

Great software! Great video. Interface is much more user-frienfly than Enercalcs. You should definetely add more calculaton templates

@StructuralCentral 2 жыл бұрын

Making the interface simple and straightforward without options hidden in menus was one of the design goals for the software. More calculations are being developed now.

@pragadeesh732 2 жыл бұрын

Please do an Video about Erection Sequence of Main Steel & Misc

@StructuralCentral 2 жыл бұрын

Thanks, I always appreciate suggestions :-)

@jeffersonalvesfalcao9922 2 жыл бұрын

excellent thanks !

@StructuralCentral 2 жыл бұрын

Thanks for the comment! I hope you find the tools at www.structuralcentral.com to be just as useful.

@raccoon874 2 жыл бұрын

*IF YOU PUT A GIANT PARASOL OR TARP THEN YOU DON'T NEED THESE CALCULATIONS*

@StructuralCentral 2 жыл бұрын

That's one solution, haha! I think the calculations are easier, though :-)

@marcinbroslawski 2 жыл бұрын

Very good description 👍

@StructuralCentral 2 жыл бұрын

Thanks! I'm glad you think so.

@seryunkwak1824 2 жыл бұрын

I love your channel. Please keep going

@StructuralCentral 2 жыл бұрын

Thank you so much! Many more videos are planned and are being worked on right now.

@seryunkwak1824 2 жыл бұрын

@@StructuralCentral Please do some seismic load on structure!

@StructuralCentral 2 жыл бұрын

Thanks for the suggestion. It definitely helps to know what topics people are interested in.

@cfcalle 2 жыл бұрын

This video is so helpful! Thank you very much :)

@StructuralCentral 2 жыл бұрын

Thank you for letting me know you appreciated it!

@nicolasramirez3944 2 жыл бұрын

Awesome explanation and visual graphics!

@nicolasramirez3944 2 жыл бұрын

Not a huge deal, but the link in the description doesn't quite work. Good luck with getting your tools out there!

@StructuralCentral 2 жыл бұрын

Thank you so much for pointing that out! I added https to the URL and now KZbin correctly identified it as a link, so it works now.

@sarahzulu21 2 жыл бұрын

What is you are asked to calculate live load using elastic method? For instance,Bolts group design. A bracket plate is connected to a W-shape column. The layout of bolts group is 5 by 2 (5 rows and 2 columns). A325 bolt, 3 inches spacing vertically and 5.5 inches spacing horizontally, type N, loading case S, 7/8 inches diameter. Eccentricity e=16 inches. If the dead load DD is 10kips, what is the maximum live load LL?

@StructuralCentral 2 жыл бұрын

For detailed, bolt group calculations, you can go to www.structuralcentral.com and sign up for free.

@LvPatriot1 2 жыл бұрын

Thank you very much, finally a great explanation :)

@StructuralCentral 2 жыл бұрын

You're welcome :-)

@LvPatriot1 2 жыл бұрын

@@StructuralCentral Are you planning to do a video for weld group? :)

@StructuralCentral 2 жыл бұрын

Yes! It's actually in the works right now and should come out in the next couple of weeks. You can subscribe so that you are notified when it is released.

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