Self inflicted homework really - I am hoping to have the opportunity to get involved in some pressure vessel design down the line.
I spent some time looking at nuclear containment design, I can follow the old style prestressed concrete design but I dont really know much about steel pressure...
Is it possible to design high pressure, high diameter steel vessels?
I know nuovo pignone do some really high pressure vessels with diameters up to 8m but they are all very long.
What sort of size are nuclear containments? Can you resist circa 10+bar pressure & temperature with welding?
I'm...
Does anyone know how to design bolts in concrete to the Eurocode?
I am looking through EN1992 but can't find formula on anchorage bond stress etc, can I just treat it as a reinforcing bar (and use EN 1992-1.1 clause 8.4.2)? I also have to check punching shear which should be ok...
Any help...
haha, i think architect aggregate might have a future...!
Cheers for the suggestions guys, i'll get looking at Barite & metal aggregates.
Dik, out of interest, what sort of job was it you used the scrap steel on? Was it just cast in the concrete?
Does anyone know of a way to cheaply increase the weight of concrete?
Its not a strength issue so I don't want to increase the grade or anything. Are there certain aggregates that increase the weight without affecting the grade?
Any help would be appreciated!
...apologies, i initially posted...
Can anyone explain to me/point me in the direction of some good resources on damping coefficients for different ground types?
I know the waves propegate differently through different material & if you are on a soft ground your loading will be more severe than if you were on rock...and that say...
Does anyone know of a way to cheaply increase the weight of concrete?
Its not a strength issue so I don't want to increase the grade or anything. Are there certain aggregates that increase the weight without affecting the grade?
Any help would be appreciated!
We are being asked if we would consider pay cuts as part of the effort to avoid redundancies - obviously they can't force us to as our wages are part of our contract, and its not even us necessarily at threat in the redundancys.
I don't mind taking a pay cut in terms of hours worked but its...
K12 is like a schools construction framework type thing yeh?
Thats quite interesting, in the UK its the buildings sector which has been hit the hardest, thats predominantly due to the housing market collapse though...
Theres a few real big projects here (Crossrail etc) but it does seem theres...
I'm just curious how the job situation is looking in the states for civil/structural engineers?
Theres a lot of infrastructure work that needs doing - bridge inspection work etc but is this coming through & what are other areas like? Obviously housing is fairly bust but are there...
Its a one off 300mm movement taking place slowly (years rather than days) & the load on the surface is 130kPa. It only moves one way & like i said it only happens once.
I think I'm using a sliding bearing now, but I'm still interested in what is alternatives there are, maybe some sort of...
haha, alright kelowna you smart ass ;)
by alternatives i just meant to the traditional run of the mill stuff i see every day - sorted now, managed to find a sliding bearing that allows the high level of movement while still taking the axial load and being thin enough for the location.
Cheers
Anybody got any recommendations on alternatives to traditinal elastomeric/mechanical bearings allowing lateral movement while taking significant axial force?
Its approx 300mm of movement and its a one off (slow occuring) event. Its two concrete surfaces so i was thinking there may be away for...
