Thanks for watching my video. Please don't forget to like and subscribe. I have uploaded the PDF copy of the drawing shown in the first few seconds of the video here: www.mediafire.com/file/qnazdec8cnhmm1e/ArchBridge_20190224.pdf/file
Really nice video! I had a task in school to make the same bridge, but 30cm length, 420g mass and it must endure 30kg. Using instructions from this video, my bridge didn't broke. Lot's of pleasure and respect!! Make more videos like this. They're quite useful!
Some things I like about your construction technique: full-size scale drawing for measuring lengths, quick way to cut several pieces to the same size overlapping spaghetti for the tensile members Design features I'd change: End members in unsupported bending tensile members are thicker than necessary. If the bridge deck spaghetti had been lengthwise instead crosswise, it would have added strength
I made one bridge for competition in which bridge self weight is just 996 gm and it carried load before fail is 109 kg. And we got 1st rank and 2nd rankers bridge wight is 1269gm which carried before failing 84kg that makes structure difference.đ
can you send me a vid of how you made the bridge? i need to make one for my statics of rigid bodies class. can you give me tips? the challenge here is that we cant use glue gun or other adhesives, we need to tie it with a yarn
Mine doesn't look as fancy as yours, but thanks for the video. My kiddo is happy. *Update: We won first place in the science competition. Thanks again!
When testing a craft stick or spaghetti bridge, the first member failure usually happens in the top compression chord (buckling failure). However, arch bridges are naturally stronger in compression due to their arch action. So for a spaghetti type material which is very weak in compression, arch bridges are usually a better choice :)
@@StructurePlanet Thank you so much for replying! I have a spaghetti bridge project that I have to make and give on Next Friday, and we have to make a spaghetti bridge but it has to be out of scotch tape. I have a few questions, how do you find the center of gravity in a bridge and the magnitude of the bridge?
Center of gravity is the average location of the weight distribution of a structure. In a symmetrical bridge, I would think it will be the center of the bridge. Basically, It is the point that you can hold and balance your structure with one finger without it falling. Well, there are many factors affecting sizing for a craft bridge. It mainly depends on span length and how much load it should take. I usually size the craft bridge to have a span over depth ratio of 4 to 7.
Bridges are anchored each end not just placed on the ground. I saw the ends slip outwards under load which would not happen if the ends were glued like real bridges are and would have made it stronger and not fail where it started to?
It was not necessary to make the horizontal part of the bridge a separate part in the place of the support. Then the force would be distributed evenly, and the beam would be loaded by bending, and not by compression. But Nevertheless, everything turned out pretty cool! !! !))) Good job!
@@StructurePlanetIn general, I love engineering construction and modeling. This is very cool, what you do)) As an engineer, I saw why the bridge support broke))
how can I make a stronger bridge I think if we make a bridge looks like the opposite shape of bending moment diagram PL/4 it will be stronger than the arch shape do you agree ?
I don't think so. I think if you connect the arch ends together using 10 or 20 spaghetti strands, it will take much more load. Alternatively, you can use half a circle shape which will be stronger too.
Glad that you liked the bridge. Some measurements are given in the beginning of the video but the one that i think you may need is the distance from the bottom chord to the top of arch which is 14 cm or 5.5". I hope this helps!
I used around 1100 grams (38.8 oz) of Bucatini and 250 grams (8.8 oz) of Fettuccine. Some broke during the cutting and some were not straight so the total bridge weight ended up just 950 grams with the glue included.
I used about 1100 grams (38.8 oz) of Bucatini and 250 grams (8.8 oz) of Fettuccine. Some broke or were not straight so the total bridge weight ended up about 950 grams with the glue included.
I used about 1100 grams (38.8 oz) of Bucatini and 250 grams (8.8 oz) of Fettuccine. Some were not straight or broke during the cutting so the total bridge weight ended up just 950 grams with the glue included.
Abutments or buttresses are stiff structures at the ends of bridges to carry the bridge superstructure vertical and horizontal loads to the foundation. For a craft bridge, it can be a simple wood section nailed to the table or a heavy concrete block placed at the ends of the bridge.
@@StructurePlanet Hello, what kind of stirrups would you implement in a bridge of these? I am doing a project for my university. your video is a success
You can improve the capacity by doing one of these: 1. Arches require abutments (buttresses) at both ends so arch can bear on it and to limit the movement of the arch. This will result in a higher capacity automatically. 2. One other way to do this is to connect the two arch ends together with some spaghetti strands or fishing rope. 3. Or to make a half circle arch instead to avoid having horizontal reactions at the base from arches.
I used about 1100 grams (38.8 oz) of Bucatini and 250 grams (8.8 oz) of Fettuccine. Some were not straight or broke during the cutting so the total bridge weight ended up just 950 grams with the glue included.
:( Haha. A much better ratio can be achieved with this design if: 1. Reduce the weight by not adding the noncontributing parts such as the deck and extensions. 2. Add lateral supports for arches during the load testing or connect each arch ends together with pasta. :)
![CONCURSO SPAGHETTI BRIDGE 2019 en UAH - Concurso Puente de Espaguetis [Real Poly Bridge đ]](/img/n.gif)
Thanks for watching my video. Please don't forget to like and subscribe. I have uploaded the PDF copy of the drawing shown in the first few seconds of the video here: www.mediafire.com/file/qnazdec8cnhmm1e/ArchBridge_20190224.pdf/file
Channel GopherVid stole your video
gracias por la ayuda!
StructurePlanet how do I print out that paper
when i try to print the diagram itâs small and only on one sheet of paper, how do i fix that?
how many boxes of spaghetti did you use?
the bio:DO NOT TRY THIS AT HOME!!!!. Meanwhile this is an assignment for school and at least 14 people are doing this lmao
lmao same
same
Really nice video! I had a task in school to make the same bridge, but 30cm length, 420g mass and it must endure 30kg. Using instructions from this video, my bridge didn't broke. Lot's of pleasure and respect!! Make more videos like this. They're quite useful!
really. we have the same task for physic lesson ;). may be we study physic together. :)))
Thank you for the tutorial. My 8 years thought it was COOOOOL!!! đ
Some things I like about your construction technique:
full-size scale drawing for measuring lengths,
quick way to cut several pieces to the same size
overlapping spaghetti for the tensile members
Design features I'd change:
End members in unsupported bending
tensile members are thicker than necessary.
If the bridge deck spaghetti had been lengthwise instead crosswise, it would have added strength
Thanks for the detailed analysis. You are right about the deck orientation and as you mentioned there is room for improvements.
B
what do you mean with âif the bridge deck had been lengthwise instead of crosswiseâ? I will be really thankful if you can help me
Wdy length wise?
@@alexamadrid3848 The noodles are oriented across the bridge deck. As the bridge bends, they don't do anything to help.
Turn them 90 degrees.
Nice. watched this in class now
I made one bridge for competition in which bridge self weight is just 996 gm and it carried load before fail is 109 kg. And we got 1st rank and 2nd rankers bridge wight is 1269gm which carried before failing 84kg that makes structure difference.đ
can you send me a vid of how you made the bridge? i need to make one for my statics of rigid bodies class. can you give me tips? the challenge here is that we cant use glue gun or other adhesives, we need to tie it with a yarn
oh my god thank you so much... my project is due tommorow and i havent started
Mine doesn't look as fancy as yours, but thanks for the video. My kiddo is happy.
*Update: We won first place in the science competition. Thanks again!
Glad that it helped!
how did you make the design sketch? I mean the shape of the truss?
nice video. we are going to try it with paper :-)
Im gonna try that as well for my school project, thanks for bringing out the idea
Hi! What makes your bridge strong and why? Why did you make an arch bridge instead of a truss bridge?
When testing a craft stick or spaghetti bridge, the first member failure usually happens in the top compression chord (buckling failure). However, arch bridges are naturally stronger in compression due to their arch action. So for a spaghetti type material which is very weak in compression, arch bridges are usually a better choice :)
@@StructurePlanet Thank you so much for replying! I have a spaghetti bridge project that I have to make and give on Next Friday, and we have to make a spaghetti bridge but it has to be out of scotch tape. I have a few questions, how do you find the center of gravity in a bridge and the magnitude of the bridge?
Center of gravity is the average location of the weight distribution of a structure. In a symmetrical bridge, I would think it will be the center of the bridge. Basically, It is the point that you can hold and balance your structure with one finger without it falling. Well, there are many factors affecting sizing for a craft bridge. It mainly depends on span length and how much load it should take. I usually size the craft bridge to have a span over depth ratio of 4 to 7.
@@StructurePlanet Thank you so much! I got a 95% on my bridge!!
I am happy to hear that :)
Bridges are anchored each end not just placed on the ground. I saw the ends slip outwards under load which would not happen if the ends were glued like real bridges are and would have made it stronger and not fail where it started to?
You are right. Arch bridges need supports that are capable of restraining the end movements.
wow
more or less how many noodles were used?
Good job man!
Did the arches get wider from top to bottom
Thanks for this amazing inspiration!
its so nice
muito bom vou fazer isto com os meus alunos ;
How much weight does it hold?
It was not necessary to make the horizontal part of the bridge a separate part in the place of the support. Then the force would be distributed evenly, and the beam would be loaded by bending, and not by compression.
But Nevertheless, everything turned out pretty cool! !! !))) Good job!
Thanks for the comment. Yes. If I had the chance to redo this, I would have done few revisions to the end supports.
@@StructurePlanetIn general, I love engineering construction and modeling. This is very cool, what you do)) As an engineer, I saw why the bridge support broke))
@@witchingmushroom1761 I design buildings generally so this explains why the bridge failed! LOL
Will it still work if I half your measurements
the top bracings, what is the distance that you used? min 2:48. the distance between the bottom chord? . thanks btw.
The clear distance was about 4cm (1-1/2") for top bracing and about 8cm (3-1/8") for bottom chords.
@@StructurePlanet
thanks, again. trying to do it.
đđđ
how can I make a stronger bridge I think if we make a bridge looks like the opposite shape of bending moment diagram PL/4 it will be stronger than the arch shape do you agree ?
I don't think so. I think if you connect the arch ends together using 10 or 20 spaghetti strands, it will take much more load. Alternatively, you can use half a circle shape which will be stronger too.
@@StructurePlanet thank you I will try the two options and then compare them
Can you tell me de measurments?
Im making a proyect and your idea really helped me but i need measurements:(
Glad that you liked the bridge. Some measurements are given in the beginning of the video but the one that i think you may need is the distance from the bottom chord to the top of arch which is 14 cm or 5.5". I hope this helps!
Con que cortas la sopa??
CĂłmo se obtiene la altura de cada triĂĄngulo?
Ù۶Űč ۧÙۧ۫ÙŰ§Ù ŰčÙÙ Ű§Ùۏ۳۱ ŰșÙ۱ Ù ŰȘÙŰ§Ù . ÙÙÙ ÙŰȘÙŰŹŰ© ŰŹÙŰŻŰ©
great
How many packs did you use??
I used around 1100 grams (38.8 oz) of Bucatini and 250 grams (8.8 oz) of Fettuccine. Some broke during the cutting and some were not straight so the total bridge weight ended up just 950 grams with the glue included.
Hi, what is the weight of the bridge? How many spaghetti covers did you use?
I used about 1100 grams (38.8 oz) of Bucatini and 250 grams (8.8 oz) of Fettuccine. Some broke or were not straight so the total bridge weight ended up about 950 grams with the glue included.
How Long did you bulid on the bridge
I think 2 weekends.
How much does it weigh
The bridge weighs about 950 grams or 2.1 pounds.
Thx so much
We are graded on our weight to to how the amount the bridge holds ratio
What's the scale called???
Thanks
Wow!
how many packets of pasta please tell really its due this friday
I used about 1100 grams (38.8 oz) of Bucatini and 250 grams (8.8 oz) of Fettuccine. Some were not straight or broke during the cutting so the total bridge weight ended up just 950 grams with the glue included.
whats the name of this bridge?
Arch Truss Bridge
ĐŃĐŸ ĐżĐŸŃлД GopherVid
Yea. Thanks! Used my design with no credits :(
@@StructurePlanet Bad guy)
ĐŁĐłŃ)
en escala de cuanto esta el puente?
me pueden ayudar por favor
Algunas dimensiones se muestran al comienzo del vĂdeo.
how can i get the area of the section for one member ?
Hi Mayar. Are you asking about the sectional area of spaghetti bridge members?
Yes
Each strand's sectional area is about 6 mm2 (rough estimate). You will need to multiply this by the number of strands used for each member.
What is the name of the bridge?
This is an Arch Truss Bridge.
@@StructurePlanet where can we found that?
cuanto de ancho tiene el puente por favor
ÂĄ?
No recuerdo el ancho, pero algo alrededor de 10 centĂmetros.
hi there,
can you share me the plot that you used ? PLZ
Sure! I just uploaded the PDF copy and shared the link in the comments.
Where do you upload the link? đđđ
@@Magaa1595 First top comment :)
How much glue sticks do you require ?
GopherVid ĐżŃĐžĐ·ĐœĐ°ĐČĐ°ĐčŃŃ
What are abutments?
Abutments or buttresses are stiff structures at the ends of bridges to carry the bridge superstructure vertical and horizontal loads to the foundation. For a craft bridge, it can be a simple wood section nailed to the table or a heavy concrete block placed at the ends of the bridge.
StructurePlanet thank you!
@@StructurePlanet Hello, what kind of stirrups would you implement in a bridge of these? I am doing a project for my university. your video is a success
Mr lindellâs class anyone?
Itâs Mr Helveyâs for me
Why did it broke? How to make it even better
You can improve the capacity by doing one of these:
1. Arches require abutments (buttresses) at both ends so arch can bear on it and to limit the movement of the arch. This will result in a higher capacity automatically.
2. One other way to do this is to connect the two arch ends together with some spaghetti strands or fishing rope.
3. Or to make a half circle arch instead to avoid having horizontal reactions at the base from arches.
how many pack spaghetti
I used about 1100 grams (38.8 oz) of Bucatini and 250 grams (8.8 oz) of Fettuccine. Some were not straight or broke during the cutting so the total bridge weight ended up just 950 grams with the glue included.
Si funciona, fue un éxito, no pude conseguir el fideo pero los cambié por uno de los normales y si funcionó,pero creo que tiene que ser bastante grueso los canutos para que sea mås resistente
Great. I think any spaghetti type will work. However, cutting and gluing thicker pasta is easier!
Disculpa cuĂĄl fue el peso total del puente?
I think....spaghetti bridge have to made from all edible material!.....
Glue can be hide glue or fish bladder glue!...đđ
Not a bad idea!
Come to my home and make me one for my techno project pls.ill give u 100 dollars .đđ
Lol thatâs a pretty bad ratio, thatâs like 1:19 mine was 1:48
:(
Haha. A much better ratio can be achieved with this design if:
1. Reduce the weight by not adding the noncontributing parts such as the deck and extensions.
2. Add lateral supports for arches during the load testing or connect each arch ends together with pasta.
:)
đđđ
broke at 19.00
X kĂŹa báșĄn ÆĄi..
Science
looks like glue bridge :-|
Haha. The glue doesn't look much when you are putting it. It somehow looks a lot when it dries up!
Hot glue failure :/
will you sell it to me
It broke at the end of the video :)
StructurePlanet do it again and buy
Feed the African/s peoples.
Shit
That's more like a silicone brige.
Sorry
Wouldn't it be easier to make an arc if you boiled them first. Do your research man.
r u stupid
I love you so much. Dm me please
đđđ
đđđ
đđđ