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For all those believe that pretensioning is required I have a hypothetical scenario for you all to consider. Please dont think I am trying to talk my self into ignoring your great advice, that comes from years of experience, but I am only trying to get a clearer understanding. Here goes - if...

Thanks for the replies but can some one explain the importance of pretensioning. The reason I ask this is because if the plates were replaced by, say, angles there would be no pretensioning required. Why is this any different?

Hi Guys I am designing a single storey steel framed buiding clad with cavity brickwork(two leaves of brickwork with a 50mm cavity)and I am planning to use flat plate tension cross braces in the brick wall cavity. The braces are aprroximately 75mm by 5mm plate. Does anyone have any comments...

Hi I have not had much experience with this myself but I dare to suggest that would need to use some sort of "link" element at the points where the buildings are joined. Also I believe if you use a link system you need to carry out a non linear analysis. Maybe some one else would have a...

As an extension to the question already asked by "Sepultura" how would one model the soil spring as compression only - using ETABS. Any hints/thoughts would be extremely appreciated.

I am trying to model a raft for a 20 story building using shell elements. I then grounded each node of the raft mesh using "gap" link elements to model the compression only spring stiffness of the soil support condition but there are a couple of things which dont appear to be correct with the...