Concrete panels as bridge?

dgjeynes

Member

• Mar 22, 2021

• #1

We’ve got to put a new bridge in over our brook. We’ve already got 4 old large rsjs. Looking to lay them across then put panels flat down on them running cross ways anybody ever done something similar?

 

Sharpy

Member

Livestock Farmer

Location

Ardrossan Ayrshire

• Mar 22, 2021

• #2

No, but when I asked a local panel supplier for a solid tank cover they suggested using slats and concreteing over them.

 

F

Fendt516profi

Member

Livestock Farmer

Location

Yorkshire

• Mar 22, 2021

• #3

Think @ColinV6 has done something similar

 

R

renewablejohn

Member

Location

lancs

• Mar 22, 2021

• #4

Personally would not do it. Have had 4mtr x 1 mtr concrete panel bog mats crumble and disintegrate. Went back to panel manucaturer and redesigned bog mats to also include steel mesh in addition to the tension steels. These have been excellent.

 

dgjeynes

Member

• Mar 22, 2021

• #5

renewablejohn said:

Personally would not do it. Have had 4mtr x 1 mtr concrete panel bog mats crumble and disintegrate. Went back to panel manucaturer and redesigned bog mats to also include steel mesh in addition to the tension steels. These have been excellent.

Click to expand...

How thick are your bog mats?

 

ColinV6

Member

• Mar 22, 2021

• #6

How wide a span are we talking here?

 

Tomr10

Member

• Mar 22, 2021

• #7

ColinV6 said:

How wide a span are we talking here?

Click to expand...

Crocodile Dundee moment coming up



That’s not a bridge this is a bridge

 

dgjeynes

Member

• Mar 22, 2021

• #8

ColinV6 said:

How wide a span are we talking here?

Click to expand...

We’re spanning approximately 20ft

 

onesiedale

Member

Livestock Farmer

Location

Derbyshire

• Mar 22, 2021

• #9

I suppose it's all about context.
How wide is the brook?
How big are the RSJs?
What do you want to run over the bridge?
How often do you use it?
How secure are the banks?
Sorry for all the questions, but the answer to your question is yes it could work if . . .

 

ColinV6

Member

• Mar 22, 2021

• #10

onesiedale said:

I suppose it's all about context.
How wide is the brook?
How big are the RSJs?
What do you want to run over the bridge?
How often do you use it?
How secure are the banks?
Sorry for all the questions, but the answer to your question is yes it could work if . . .

Click to expand...

This all needs answered first before we could possibly advise
Also, whatever your budget... double it

 

R

renewablejohn

Member

Location

lancs

• Mar 22, 2021

• #11

dgjeynes said:

How thick are your bog mats?

Click to expand...

Bog mats are 100mm thick

 

J

JX1100U

Member

Livestock Farmer

Location

Tasmania

• Mar 22, 2021

• #12

onesiedale said:

I suppose it's all about context.
How wide is the brook?
How big are the RSJs?
What do you want to run over the bridge?
How often do you use it?
How secure are the banks?
Sorry for all the questions, but the answer to your question is yes it could work if . . .

Click to expand...

^^This, lots of variables that need to be answers before you can know for certain it would work for your situation. Big one that will affect the concrete panel is how wide do you want the bridge? This will determine the beam spacing and hence how far the concrete panel has to span. Defiantly possible to do, I see quite a few bridges with concrete decks with either steel or timber beams.

 

wr.

Member

Livestock Farmer

Location

Breconshire

• Mar 22, 2021

• #13

We did this 14 years ago. Old railway bridge. The sleepers are laid on 6 heavy duty girders and have a light covering of railway ballast.

 

onesiedale

Member

Livestock Farmer

Location

Derbyshire

• Mar 22, 2021

• #14

Why did you put the sleepers rough side up?

 

F

Fendt516profi

Member

Livestock Farmer

Location

Yorkshire

• Mar 22, 2021

• #15

wr. said:

We did this 14 years ago. Old railway bridge. The sleepers are laid on 6 heavy duty girders and have a light covering of railway ballast. View attachment 949159View attachment 949160

Click to expand...

You put them wrong way up. Other way up and some baler band threw them hole and tied down to girders and jobs a goodun

 

F

Fendt516profi

Member

Livestock Farmer

Location

Yorkshire

• Mar 22, 2021

• #16

wr. said:

We did this 14 years ago. Old railway bridge. The sleepers are laid on 6 heavy duty girders and have a light covering of railway ballast. View attachment 949159View attachment 949160

Click to expand...

Did you drive tractor along girders to put the first sleepers down

 

Highland Mule

Member

Livestock Farmer

Location

Scottish Highlands

• Mar 22, 2021

• #17

onesiedale said:

Why did you put the sleepers rough side up?

Click to expand...

If I had to guess...

wr. said:

6 heavy duty girders

Click to expand...

To spread the load evenly across all the girders.

 

7

7610 super q

Never Forgotten

Honorary Member

• Mar 22, 2021

• #18

Should imagine he just pushed them across......

 

B

Bongodog

Member

• Mar 22, 2021

• #19

onesiedale said:

Why did you put the sleepers rough side up?

Click to expand...

if they were the other way up, the middle wouldn't be supported and then they would crack.

 

R

robs1

Member

• Mar 22, 2021

• #20

While concrete sleepers would never break as they are very strong they are also extremely heavy