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bridge for Island
They won't free span the 32'.
We could make them work if we add a center pier and span them 16', but not 32'.
We needed a 24" deep girder for the center of the span if we go the whole 32'. Thats why I was doubling up the 12x12" timbers we discussed last week. The taper makes them difficult to double up.
If you would like a sketch of the girders, let me know and I will post one to my pictures this evening. I don't think the words are explaining what you need very well.
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bridge for Island
sounds good to me, just wondering, 40' wont span 32, you are correct i need a picture.
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bridge for Island
SG,
I thought the same thing you asked but reread Beagle and realized the word "free" I had missed.
You do realize when you get this built we all will be expecting pictures on what you finally did and to be invited for a cook out to test it. Please, not July or August.
kt
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bridge for Island
I have all plans of pictures and updating to a premium member. This is a geat forum. You dont have to wait for the bridge for a cook out I do love a party. Doors open, pond is full of fish.
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bridge for Island
OK, check out my picture 20. Very rough sketch of the side view of two different bridge concepts. One is a 32' free span with 24" deep girders, the other is for 2-16' spans, requiring 12" deep girders.
Take a look at the sketch and see if we are together so far. We can continuously add detail as we get further through this.
I had to reduce the sketch, hopefully you can still read it.
Beagle
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bridge for Island
beagle
Not catching onto the Termonology was killing me. The drawing is highly outstanding. I will look into some beams now that I got "free span" in my head I think that is the way to go. Two 32' X 12" X 12" and two 16' X 12" X 12". If I have paid attention this is the minimum that I will need. Timbers or poles are all that I have seen so far. This is why you ask questions, keeps me from spending all of my wifes hard earned money.
KT
Thanks for the pointing out the word "free". Still did not have a clue until I saw the drawing.
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bridge for Island
OK, the 2 - 55 foot 12"x12" timbers would work for the 32 foot free span sketch. Cut each timber to 32 feet, then take the 23' we cut off and add to the bottom of the 32' piece to create the 24" deep girder. That's what my 32' free span sketch shows.
The through rods I talked about last week is what connects the 2 12"x12" pieces together to create the 24" deep girder.
How are we doing so far?
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bridge for Island
MY fault the 55'ers are also tapered poles intended for building docks. I will look for beams. The local lumber store had 25 footers but they maybe able to help me out.
POLES ------ round or round and tapered
BEAMS ------ square or rectangle
dont give up on me.
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bridge for Island
I think once we get our vocabulary figured out, the rest will be easy.
If you want to go with the 2-16 foot spans, it might be easier to get the materials and keep the bridge light. The center pier would be some work, probably 4 "poles" jetted into the pond bed about 4 feet, with 2 2x12's as a pier top across the tops of the poles. The sketch kinda shows the pier for the 2-16 foot spans.
Tell me again, what is the heaviest piece of equipment you want ot move over the bridge?
We're not going anywhere.
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bridge for Island
A 300lb lawn mower and 200lbs of me at the most at one time. I would rather not do the post in the pond thing if we can get around it spaning the 32 ft sounds good. I'm in Ga. we do everything slow, it is hard to read as fast as you write.
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Gas Generator Weather Protecti
01-30-2006, 15:20 
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