Yes, Hokie, as you say, under 1.2mm is G500 or G550. 1.6mm and above is G450. My mistake.
To define large, I should have mentioned that these buildings are all "Standard Designs" using the light gauge material. So "large" for these is perhaps up to 20m span and 7.5m frame centres. Obviously not...
Bill, yes the practice is common, even ubiquitous around here. Even if the job has bolted connections you almost always have end plates for the bolting, and these plates, (eg. 8 or 10mm plate) are welded to the galv light gauge section at knee and apex.
I'm trying to get a handle on the best...
Many thanks all for your comments. I'll make contact with Buildscope in OZ and see what I can get from them, (sometimes an extended process!). I'll contact Lincoln and see if they'll deal with a bloke from down under.
Regarding designing economically, the buildings I'm referring to are medium...
I frequently see steel-framed buildings using light-gauge (viz. purlin type section) frames, having welded connections at the maximum moment points, ie. knee (column to rafter) and apex of a hipped roof.
It's my understanding that the heat of welding generally speaking destroys the high tensile...
This seems to be one of those "am I the only guy who doesn't know this" questions.
I've tried quite hard to locate an explanation behind the 'code' which identifies screws, in particular TEKS types, those self drilling ones.
For example a teks screw can be described as 14-20x22 plus a few other...
If this is all about building a stacked stone wall then a batter of 1:6 will be fine, ie. 6 vertical and 1 horizontal.
Consequently I'm not sure the coefficient of friction is going to come into the problem, since you now have a "gravity wall", ie. it's leaning backwards and as long as...
Yes, what is this P/C band supporting? Is it purely a cosmetic device?
The support of glass, as mentioned, can be a real issue, but this will depend on the jointing and physical construction of such frames. Check the actual frame joint methods, eg. rubber inserts, silicone with little structural...
All the concrete anchor suppliers, eg. Ramset, will provide the answers you request.
The exact figure will alter depending on the size of anchor (diameter x length) and the physical size of the "piece" doing the connecting; edge distance and a few other things.
Ask your supplier...
The main issue here is that concrete is porous to moisture. Do you need the warehouse to be moisture-proof? That is, when anything is left on the floor, do you want it to remain dry. The answer by most clients will be "... of course I want the << complete the expletive >> floor to be...
Look at anything by J Morton of Brick Development Association, UK. He's produced a number of very well detailed papers on Structural Masonry and it's design and detailing. Recommended!
BS5628 is the UK standard, in 3 parts. Also "Handbook to BS5628" by Heseltine & Moore.
AS3700 is...
I agree with the others re. the rail/wheel thing. Also if your beam was under-designed it wouldn't make noises it would deflect, deform etc.
But the main point to make is that you must get up there while the crane is operating and find out what is making this noise. Take photographs, check...
What you ask will vary substantially for a clayey reactive soil as compared to a stable and granular soil. If you want to address the total question you will need to examine the seasonal and long term soil movement since this interacts (a critical point this) with the footing forces. You can...
Square-twist bar used to be used in European and Australasian areas because it was easy to obtain as Mild Steel square bar which was then Cold Worked by the action of twisting. This gave a helical shape longitudinally which was also very good for concrete bond reasons.
Usually only the small bar...
As I understand it you've treated the INSIDES ONLY of the walls, which is fine. I would add that the mortar joints throughout might need replacement in order to prevent some continuing damp damage and in order to give you a better final result than leaving the old lime mortar in place, would...
I can't find AS1288 in my design references. Can you be more specific re. the Code Title name plus the exact text extract you're looking at. I'm OZ trained and am in OZ currently so I might be able to assist.
Anthony Tugwell
Project Director & Consulting Engineer - just relocated to Australia
I was brought into a problem with a structure in Australia constructed almost entirely with "sandwich panel" as we usually call this product. Walls, floors, support beams and columns were all made of the same material.
However because it was a building having 16 sides, and because...
I would like to support designing this tower using first principles. Divide it into segments (you might have 5 to 10 no.) with boundaries at critical points such as attachment points etc. Assign preliminary sizes and analyse each segment for direct load and wind load effects; eg. AS1170.2...
Freddy I think you'd be better off getting hold of some detailed technical papers on this subject. I suggest the professional engineering bodies in US, Australia, UK who all publish their member's submissions and assist members to search for such information.
While I haven't designed a silo for...
OK Spinner1 are you going out to the garage now to check out some of the above?? We need some feedback ... case in point the deflection thing I suggested.
So can I suggest you let us know about these things:-
* cracking and it's extent; pattern visible on upper and lower slab and beam surfaces...
