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Manchester Central, CLC & GN Warehouses & Castlefield Viaducts


Ron Heggs
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Span beam S2A completion -

 

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Second side frame attached with end flanges

 

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Close-up detail

 

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Top and Bottom Flanges fitted

 

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Completed beam with flange details

 

Assembly of Span Beams N1, S1 & S2A and Deck -

 

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Beam S2A fixed to Deck

 

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Beam S1 attached to Deck

 

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Beam N1 attached to Deck

 

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Both Deck sections (incorporating Beams N1, N2, S1, S2A & S2B) on temporary supports

 

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View from opposite end

 

The off-vertical of the span beams will be corrected during the fitting of the overhead bracing beams

 

Overhead Bracing Beams now under construction and will be fitted after the load test

 

** Test scheduled for late Wednesday **

 

... to be continued >>>>>

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bcnPete, on 22 August 2011 - 17:30 , said:

 

 

Unless the heat has caused you to drink a few of those tinnies of course :D

 

Nile_Griffith, on 22 August 2011 - 17:34 , said:

 

Test scheduled for late Wednesday? Lets hope that the test material doesn't get consumed post loading or we may not hear about the results till Friday evening!!!!!!

 

 

*** Just saved the day ***

 

Thought I might have to visit the supermarket again for the test load, but SWMBO has found 4 x 500ml cans in the Wine Cooler - Now how did they get in there ?

 

Now I have a total load of 22 x 300ml + 4 x 500ml cans = 8.6 litres / 8.6 kg / 18.92 lbs

 

So here goes the test -

 

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Not a sign of any deflection, etc. small.gif

 

Well that was simples !!

 

Cheers to all

 

Ron

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Hi Ron,

 

This is my favourite thread on RMweb. I dread the day your project is completed. :D

 

Regards,

 

Stefan

 

Hi, Stefan

 

Aren't you lucky, there's a fair way to go yet - a year or two at least

 

Cheers

 

Ron

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Hi Ron,

 

I don't know how we haven't run out of superlatives for your work on here. The viaduct is going to be absolutely stunning by the time it is finished and they are all put together (thats going to be some set of photos to wait for). Have you asked your local supermarket to increase their orders for cans of beer in the near future yet for more loading?

 

Colin

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- just a quick few photos of the test build for the first overhead bracing for this viaduct -

 

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Shows internal construction of the beam

 

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Internal construction of end support

 

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End support attached to beam

 

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Support for other end of beam

 

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Bracing Beam (flange detailing still to be done)

 

.. and yes the beam has a slight curvature (as per prototype)

 

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Typical location on viaduct spans (not fixed in place)

 

- just a few more to do for the existing sections

 

... to be continued >>>>>

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Hi Ron,

I don't know how we haven't run out of superlatives for your work on here. The viaduct is going to be absolutely stunning by the time it is finished and they are all put together (thats going to be some set of photos to wait for). Have you asked your local supermarket to increase their orders for cans of beer in the near future yet for more loading?

Colin

 

Hi, Colin

 

The local MASYMAS supermarket is well stocked at this time of year for the Holidaymakers/Visitors, so no problems with stocking up :sungum:

 

Cheers

 

Ron

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Hello Ron,

 

fantastic work as always.

 

Just one question, on the bracing beams I have noticed that you are using box section beams (as the prototype did) but I have not noticed any vent holes for the solvent (gas / vapour) to escape from. I don't normally work in plastic but I always thought that this was good practice.

 

keep up the good work and I like your load testing methords

 

OzzyO.

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Hello Ron,

fantastic work as always.

Just one question, on the bracing beams I have noticed that you are using box section beams (as the prototype did) but I have not noticed any vent holes for the solvent (gas / vapour) to escape from. I don't normally work in plastic but I always thought that this was good practice.

keep up the good work and I like your load testing methords

OzzyO.

Hi, Ozzy

You are right the enclosed box sections and multiple laminations do need venting

 

I made allowance by reducing the height of the inner support flange, which allows the support boxing to vent, and also allows the box beam to vent

 

This can be seen in the 3rd picture of post #663

 

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Close-up of vent point - won't be noticeable when painted

 

The alternative would have been to cut/drill vent holes in the upper part of the inner support flanges, and cut/drill a hole into the top beam of the span where the support would sit (this is more work)

 

Thanks for your observations

 

Cheers

 

Ron

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I have had a query as to what tools I use to construct these viaducts, etc.

 

A photo of all the tools I use at present for these builds -

 

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List - (left to right, top to bottom)

 

6mm x 200mm x 100mm Plate Glass

Digital caliper - 150mm

300mm stainless steel rule

200mm stainless steel rule

150mm stainless steel rule

50mm x 100mm steel set square

10mm x 80mm flat medium file

6mm x 70mm flat fine file (taper pointed)

6mm x 75mm flat fine file

Angle-edged Tweezers

Double-ended pin vice/s (2)

Strip cutter

Cutting Compass (10mm -150mm)

Cutting Compass (10mm - 300mm)

Fine saw blades (10thou thk various 25-68 tpi) in Swann Morton handles

Craft knifes 9mm snap-off blades (3)

Guillotine

A2 cutting mats (3)

 

Not pictured -

1 metre aluminium rule

600mm Safety edged cutting rule

Bevel-edge cutters (2)

Selection of needle & warding files

Drill bits (0.3mm - 12mm)

0-150mm Micrometer

2" bench vice

2 laptops - 1 working as a CAD Workstation - 3 printers (1 Laser, 2 All-in-one's)

 

and when I move onto the layout trackwork, etc. -

 

tools for electrical work - multimeter, rampmeter, soldering irons, etc.

 

... and finally my workshop fitted out with metal & woodworking machinery of various types - too many to list here (hand & bench)

 

** Not short of a tool or two ** :no:

 

Ron

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- Thanks Colin !

 

 

Cut the parts for 10+ Bracing Beams -

 

post-10633-0-02289800-1314116314_thumb.jpg

 

Have now perfected the cutting of true curved beam webs with a radius of 1951.5mm - this gives a height difference at the centre of the beam of 1.5mm

 

- and now for the builds

 

... to be continued >>>>>

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Ron, do you drink anything else? :O

Keep up the good work.

 

Yes, but it comes in tall bottles in various colours - red, rose and white - difficult to stack, and makes a real mess when they fall on the floor or table :laugh_mini:

 

Cheers

 

Ron

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Now the test build of the bracing beam is finished, and the parts cut and ready for the main builds, I will show the build process -

 

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Bottom flange with box beam spacer fitted centrally, and beam webs awaiting attachment

 

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The beam webs ar marked with the locations of the vertical flange strengtheners

 

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The beam webs fixed tight to the box spacer, and the top beam flange is fitted with its spacer

 

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Top flange fixed in position

 

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View of end of box beam

 

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Parts for beam supports

 

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Spacers fitted to support vertical flanges

 

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Web fixed to side of spacer

 

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Both webs in position, and closing flange awaits fixing

 

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The supports completed

 

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Supports fixed the ends of the beam

 

Vertical flange detailing on beam webs to be added when all beams for the two span/decks are completed

 

... to be continued >>>>>

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The only thing I was musing over was the fact that you're not doing it in P4.....

*ducks to avoid beer can being chucked*

 

Can't go throwing the test loads about - that would leave a bad after taste :rolleyes:

 

P4 is basically a track and stock project - track never is/was a problem - rolling stock now that's a big long term solution, with all the RTR stock I have in storage - still can't decide which way to go (not the cost just the number of manhours required for conversions)

 

Cheers

 

Ron

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