It sounds like this wall may be used in something like a sewerage works or water reservoir. Have you considered using an earth bund over part of the height, if this is well engineered and compacted, it may be able to support 45 degree sloping ground slabs. The balance of the wall could be a...
Thank you all for your helpful and valuable comments. In particular there seems to have been a good deal of research undertaken in New Zealand about 9 or 10 years ago into the strength of epoxy glued connections into heavy glulam beams designed for the Sydney Olympics. Particular reference may...
I have a consultant who has specified this unusual method of fixing a steel joist (of a pedestrian bridge) to each timber pile support. The concerns that I have are that the timber will shrink over its life and that the 40 mm diameter hole will no longer secure the epoxy and its threaded rod to...
I have encountered this problem many times before in spreadsheets. My simple but not very elegant solution is as follows:
(i) Enter numbers 10, 100, 200, 300 and 400 in cells A2:A6
(ii) Enter these same numbers in cells B1:B5
(iii) Enter number 150 in say cell C2
(iv) Then use the following...
I am reviewing this handy little instrument and have some questions. The instrument was developed by Ing. Prof. Alberto Bucchi. It has a dial gauge that reads penetration pressure in kilograms. There are an assortment of five tips that may be selected of diameter quarter inch, 10, 15, 20 and...
I believe that the ends of the lower chords may need to be strapped with galvanised straps to prevent further splitting. It may also be wise to get a specialist to check for rot in the timber. If the timbers have dried out and shrunk, the nail plates may be loose and these may need to be re...
You may wish to consider the effect of vehicle loading behind the wall from maintenance or other vehicles such as cranes that may at some time be used to lift in heavy equipment.
