Egon
Epic Contributor
Is that an approved often used type of application? You realise the beam end that is encased in concrete will be in tension?
How far out can I extend a structure supported on one end?
- Thread starter bdog
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Is that an approved often used type of application? You realise the beam end that is encased in concrete will be in tension?
Streetcar
Veteran Member
Integral abutments are used in Ohio, very common in Tennessee
Egon
Epic Contributor
On cantilevers??
Streetcar
Veteran Member
Integral abutments are common with multiple spans. Similar forces in abutment with cantilever or multiple spans. Highest tensile forces will be at support closest to water
Egon
Epic Contributor
Those should be in compression.
Streetcar
Veteran Member
The beam would fail at the support closest to the water before it would fail at the end support from tensile forces
LD1
Epic Contributor
Bottom flange, at waters edge of concrete = compression
Top flange, at waters edge of concrete= tension.
Edge of concrete at waters edge is the highest force for both
Top flange, at waters edge of concrete= tension.
Edge of concrete at waters edge is the highest force for both
kid tulocay
New member
Good program for beam analysis:
http://yakpol.net/gobeam.html
I think it's $35 to download the "non-professional" version.
I used it for a 25' and a 50' bridge using doug fir utility poles for beams.
http://yakpol.net/gobeam.html
I think it's $35 to download the "non-professional" version.
I used it for a 25' and a 50' bridge using doug fir utility poles for beams.
Egon
Epic Contributor
The water edge support is in compression. The land side support is in tension. The beam and the supports are different entities as are the connections between the beam and support. Lots of different ways for the connections.
A beam usually fails where sheer or moment values are highest.
[video]https://www.quora.com/What-are-the-types-of-beams[/video]
A beam usually fails where sheer or moment values are highest.
[video]https://www.quora.com/What-are-the-types-of-beams[/video]
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Streetcar
Veteran Member
Ld1
thanks for the helpful explanation
Egon
Supports can fail in the technical sense in that they allow excessive movement, but they rarely completely fail.
Most rolled beams will fail in compression of the flange in the area of highest moment if loaded as a cantilever. The highest moment would be at the support closest to the water
thanks for the helpful explanation
Egon
Supports can fail in the technical sense in that they allow excessive movement, but they rarely completely fail.
Most rolled beams will fail in compression of the flange in the area of highest moment if loaded as a cantilever. The highest moment would be at the support closest to the water
