HiddenLayer555@lemmy.ml to Videos@lemmy.worldEnglish · edit-29 days agoWhy don't railroads need expansion joints?www.youtube.comexternal-linkmessage-square38fedilinkarrow-up1111arrow-down17file-text
arrow-up1104arrow-down1external-linkWhy don't railroads need expansion joints?www.youtube.comHiddenLayer555@lemmy.ml to Videos@lemmy.worldEnglish · edit-29 days agomessage-square38fedilinkfile-text
Practical Engineering’s video on this is also really good: https://www.youtube.com/watch?v=zqmOSMAtadc
minus-squareYodaDaCoda@aussie.zonelinkfedilinkEnglisharrow-up2arrow-down1·9 days agoYeah in Melbourne several years back we had a heat wave that fucked up a bunch of the train tracks. Isn’t the thunk-thunk as you’re travelling the wheels of the carriage passing over the expansion joints?.
minus-squareflyingSock@feddit.orglinkfedilinkEnglisharrow-up4·9 days agoNowadays there are no thermal expansion joints, the rails are welded. Any thunk thunk left is at switches.
minus-squareBangCrash@lemmy.worldcakelinkfedilinkarrow-up2·8 days agoYou should probably watch the video. It’s informative and answers your question.
Yeah in Melbourne several years back we had a heat wave that fucked up a bunch of the train tracks.
Isn’t the thunk-thunk as you’re travelling the wheels of the carriage passing over the expansion joints?.
Nowadays there are no thermal expansion joints, the rails are welded. Any thunk thunk left is at switches.
You should probably watch the video. It’s informative and answers your question.