Propping a Yew

[scotspine1]

Propped the Ancient Yew this week.

[Dean Lofthouse]

..and a mighty fine job you made of too!!

 

Well done, looks the part.

[bill]

..and a mighty fine job you made of too!!

 

Well done, looks the part.

 

 

i agree, nice work mate. yews are amazing, i hate touching them fullstop.

[Bundle 2]

I have used cut off 50mm towball “balls” welded into the end of scaffolding poles at both end to act as gimbals in cast iron blocks so the scaffolding pole doesn’t fatigue ware it goes concrete and allows the branch to move more naturally wile still supporting it, I have also used 1” steel plate the ground anchor/weight spreader above roots just beneath ground and 30deg rosejoints in place of towball “balls”, but then I do come from an engineering background.

 

Yeah...the effect of propping will reduce the flexibility of the limbs...obviously or it wouldnt help...but to make them overly rigid can introduce immeasurable forces .The system you have described would seem to be designed at addressing this built in weakness allowing some give whilst supporting weight. The other solution is a prop of a calculated strength ie a measured failure rate...but this is not as good!

Liquid cooll.......

[Alex]

Use oak or sweet chestnut, and have steel yokes made. then cross bolt the props into place using stainless bolts.

 

Mr Ed you got there first, this is the best way to go, some sort of anti chaff padding can also be used, hesian or other natural fiber is best.

 

Have you got any Oak or simal to fell soon? if so rough mill some post from that.

 

Found some good stuff on the web and good old N D G James wrote a bit on this as well. If i find some thing I will post up. Also worth looking a Cauls for calulations to make sure you are building it a. stong enough and b. putting in the right place.

 

Happy propping, I like the end of the Bar best... oh sorry, oh yes very kind of you I'll have a pint...

[scotspine1]

Also worth looking a Cauls for calulations to make sure you are building it a. stong enough and b. putting in the right place.

 

After propping that Yew I realise that an engineer with some basic knowledge of tree biology would know how to prop a tree better than any arborist.

 

The reason is that they spend their time building things whereas we spend most of our time knocking things down.

[scotspine1]

Some more pics form the job.

[Bundle 2]

damn thats one ugly tree !

[scotspine1]

damn thats one ugly tree !

 

So would yew be after 500 years! Someone started a fire in the main crotch about 20 years ago, the fire damage eventually caused one of the main stems to fail a few weeks ago.

 

With the props to support it, it will be able to regenerate lower down and live for another 500 years....hopefully.

 

Here's its good side...

[Mr. Bish]

I'm impressed with your work :-)

 

Also impressed with the tree owners to get the job done instead of removing it just because it doesn't look the way they would expect it to look.