National Boards > Bridges

Steel vs concrete beams

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tolbs17:
Which is better and why?

Steel

https://www.google.com/maps/@35.4352398,-78.0697879,3a,75y,64.32h,91.78t/data=!3m6!1e1!3m4!1s9jDpBd3Bv04P74Zyw_Pxiw!2e0!7i13312!8i6656

https://www.google.com/maps/@35.5976673,-78.4109489,3a,53.3y,288.06h,96.26t/data=!3m7!1e1!3m5!1s2xqi7mcklSaPK2hU8-6bSg!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fpanoid%3D2xqi7mcklSaPK2hU8-6bSg%26cb_client%3Dmaps_sv.tactile.gps%26w%3D203%26h%3D100%26yaw%3D64.158295%26pitch%3D0%26thumbfov%3D100!7i16384!8i8192

Concrete

https://www.google.com/maps/@35.6072311,-78.5644652,3a,75y,139.85h,92.69t/data=!3m6!1e1!3m4!1sZImuja4ka1NeLhSEBQlxCg!2e0!7i16384!8i8192

https://www.google.com/maps/@35.8702441,-77.5236711,3a,75y,22.94h,93.18t/data=!3m6!1e1!3m4!1sJEko6YhosDLWc_Jv5u92Rw!2e0!7i13312!8i6656

Big John:
Steel makes for more flexible design in several aspects.

Concrete doesn't rust except for the rebar/tendons at the ends

Duke87:
The only correct answer is "it depends".

tolbs17:

--- Quote from: Duke87 on May 26, 2021, 01:07:05 AM ---The only correct answer is "it depends".

--- End quote ---
Like the cost?

Duke87:

--- Quote from: tolbs17 on May 26, 2021, 07:49:36 AM ---
--- Quote from: Duke87 on May 26, 2021, 01:07:05 AM ---The only correct answer is "it depends".

--- End quote ---
Like the cost?

--- End quote ---

That is one thing on which it may depend, yes.

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