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‘Swaying’ home

The Great Soprendo said:
I don't think earthquakes are relevant. Earthquakes in this part of the world are rare and generally very small. It just sways when a lot of people are on it, like many footbridges.

For reference, here are the most recent recorded earthquakes in the vicinity (most of which nowhere near, actually) based on a search for Sunderland:

View attachment 24861

For Sunderland itself (bearing in mind M1.5 is miniscule):

View attachment 24862

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Click to expand...
I was pretending to be an expert mate but thanks for the info.
Nasser Butt-Head said:
I like your meteorological and geological musings! Very informative if not a little superfluous.
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My Christmas resolution was to tell more fibs! :lol:
 

The Great Soprendo said:
I don't think earthquakes are relevant. Earthquakes in this part of the world are rare and generally very small. It just sways when a lot of people are on it, like many footbridges.

For reference, here are the most recent recorded earthquakes in the vicinity (most of which nowhere near, actually) based on a search for Sunderland:

View attachment 24861

For Sunderland itself (bearing in mind M1.5 is miniscule):

View attachment 24862

You must be logged on to see external links
Click to expand...
New bridges and nuclear reactors are subject to seismic regs. New major hospitals built to the same standards too.

Could be wrong but I think older bridges had to be retrospectively tested. Might just be major bridges though? @Bow5853 will probably know.
 
Bow5853 said:
I actually installed the expansion joints on the bridge in the summer, it is very much normal !! Ya fat bassas !
Click to expand...

Are you related to Brunel by chance?

What a thing to be able to say to your grand children.’ I built this bridge’

Can the following happen on the Keel Bridge
4




The bridge in London that famously swayed and earned the nickname "
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" was the Millennium Bridge, a pedestrian-only footbridge connecting St Paul's Cathedral and the Tate Modern. Opened in June 2000, it was closed just days later due to significant swaying caused by pedestrians inadvertently matching their steps with the bridge's natural movement, a phenomenon called
You must be logged on to see external links
; it reopened in February 2002 after dampers were installed to stabilize it.
 
Chewit said:
Are you related to Brunel by chance?

What a thing to be able to say to your grand children.’ I built this bridge’

Can the following happen on the Keel Bridge
4




The bridge in London that famously swayed and earned the nickname "
You must be logged on to see external links
" was the Millennium Bridge, a pedestrian-only footbridge connecting St Paul's Cathedral and the Tate Modern. Opened in June 2000, it was closed just days later due to significant swaying caused by pedestrians inadvertently matching their steps with the bridge's natural movement, a phenomenon called
You must be logged on to see external links
; it reopened in February 2002 after dampers were installed to stabilize it.
Click to expand...


Very proud to have worked on our bridges mate, especially the spire bridge at hylton as I was one of the first blokes to walk across it !! Got some good photos to show off years down the line before the tarmac etc was even laid.

Only really work in the Bridge expansion joints department as far as construction work goes though so cant really answer your question when it comes to design etc !! Blokes on a lot more money than me are in control of that 🤣 . . . Joints we install work by creating gaps between bridge sections to allow for controlled movement, absorbing expansion and contraction from temperature changes . . Bridges in the winter shrink by about 40-80mm and in return grow by 40-80mm in the summer due to the steel expanding and contracting within the structure . . Movement also comes from The traffic loads, and structural settling. . . .This prevents cracks and damage, and ensures a smooth ride using components like interlocking steel plates (finger joints) or modular systems with sealing elements that move like an accordion. They're essential for a bridge's longevity, acting as "living" parts that accommodate stresses.
 
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Bow5853 said:
Very proud to have worked on our bridges mate, especially the spire bridge at hylton as I was one of the first blokes to walk across it !! Got some good photos to show off years down the line before the tarmac etc was even laid.

Only really work in the Bridge expansion joints department as far as construction work goes though so cant really answer your question when it comes to design etc !! Blokes on a lot more money than me are in control of that 🤣 . . . Joints we install work by creating gaps between bridge sections to allow for controlled movement, absorbing expansion and contraction from temperature changes . . Bridges in the winter shrink by about 40-80mm and in return grow by 40-80mm in the summer due to the steel expanding and contracting within the structure . . Movement also comes from The traffic loads, and structural settling. . . .This prevents cracks and damage, and ensures a smooth ride using components like interlocking steel plates (finger joints) or modular systems with sealing elements that move like an accordion. They're essential for a bridge's longevity, acting as "living" parts that accommodate stresses.
Click to expand...
What's the name of the company you work for ?
 
Chewit said:
Are you related to Brunel by chance?

What a thing to be able to say to your grand children.’ I built this bridge’

Can the following happen on the Keel Bridge
4




The bridge in London that famously swayed and earned the nickname "
You must be logged on to see external links
" was the Millennium Bridge, a pedestrian-only footbridge connecting St Paul's Cathedral and the Tate Modern. Opened in June 2000, it was closed just days later due to significant swaying caused by pedestrians inadvertently matching their steps with the bridge's natural movement, a phenomenon called
You must be logged on to see external links
; it reopened in February 2002 after dampers were installed to stabilize it.
Click to expand...
This one had me worried about it when I crossed it 1st time. Feck all now like as I take no notice of it
 
Topcat1 said:
Not sure this even fits on our footy forum BUT did anyone else get the wobbles on the footbridge after the game? Got to say it was swaying A LOT. Thought it was just me at first then realised it was the actual bridge, and I was bang in the middle when it was at its worst. Ngl did frighten me a bit.
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Haven’t been on it and never will after reading this.🤣🤣🤣🤣
 
Topcat1 said:
Not sure this even fits on our footy forum BUT did anyone else get the wobbles on the footbridge after the game? Got to say it was swaying A LOT. Thought it was just me at first then realised it was the actual bridge, and I was bang in the middle when it was at its worst. Ngl did frighten me a bit.
Click to expand...
Pleased someone else noticed it.
 
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