The elevator will bring you on top of the Bridge to Russky Island which is currently under construction in Vladivostok in 5 minutes. Its pylons have reached their record-breaking height of 324 m above sea level! So, let’s go up and see what’s going on over there!
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How are they going to connect the two halves of this bridge? They look to be many meters off from lining up! Someone messed up!
Duct tape
The angle of pictures make it look like they are meters off.. I don’t think they would have kept building if it was off.
lol they keep adding sections until they do line up, so complicated.
A few rusty old bits of metal and a couple of good welders should solve the problem. It always worked for me.
It has to do with the suspension cables. If you look at pic bridgevladivostok320meters-56.jpg, you see that the sagging section is beyond the point where the last set of suspension cables connect. The uplifted section has a set of cables attached at the very end of the section. When the next section is attached, that side will sag like the other side. At that point, the two ends will be connected together, the suspension cables will be tightened to level out thew roadbed and the longitudinal wires will be tensioned.
Duct tape, lol. Reminds me of that pic of a mig with duct tape on it’s wing. Classy. They’ve already set the suspension Cables and they normally don’t have a lot of play in them for adjustment, well not that much play in them at least. This road might turn out to be a little wavy lol.
太漂亮了！~
i suppose they calculated the compression weight on the base of the tower crane. it must be a lot.
Very good design and engineering solution to build the bridge in section, adding the new ones during the course of two halves’ elongation. The cables. then, can be readjusted such that the two ends are precisely aligned and then the last piece is added. Then the last trick is done – a bunch of cables are ran through the bridge from end to end and tensed, so they would redistribute the load and will adsorb the vibration and distribute it evenly. It’s like an ostnkino tv tower on lying on the side, same nikitin’s idea.
The engineering term is post-tensioning. The individual sections are made with rebar. The concrete holds well in compression but can’t take tension. The rebar absorbs the tension loads within the section. The completed bridge sections would sway and buckle under the moving load of traffic. The cables within the roadbed are stretched, or tensioned, after assembly, hence post-tensioning. These stretched cables absorb the loads from the moving vehicles. This keeps the bridge parts aligned.
Amazing for sure!