AndrewJin
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Well, I mean a process of building bridges.Do you mean swing bridge (Where the girder element can swivel on a pivot)?
View attachment 334449
https://en.wikipedia.org/wiki/Swing_bridge
View attachment 334450
These are usually provided over waterways, where high height ship movement might be restricted due to low height clearance of bridge.
It is usually used to build a bridge over another very busy corridor, such as a bridge, a road, a railway, etc.
In order not to impact the busy traffic, they will first build a section then rotate like 80 degree....The swivel process is finished within 1-2 hours. So the corridor underneath will be stopped for only 1-2 hours.
In this HSR from the provincial capital of Inner Mongolia to the 2022 Olympics host city Zhangjiakou, 5 railway bridges were built in such a manner.
Before
In process
after
22400 tons section swings over Beijing-Shanghai railway in Shandong
world's heaviest so far
Powered by Wuhan's construction group
Biggest swing process in Southwest China
Expressway over railway
106 degree in my city Wuhan
17000 tons
Urban road over railway
HSR over railway, Northeast China
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