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I am designing a 3-storey classroom block. The concrete frames consists of 8 metre long single span beams at all floor levels and roof level supported on 2 circular columns (600 mm diameter). These frames are to be spaced at 11 metre centre. There will be no shear walls provided. Slabs will be...

Thanks JAE and Carbauer. The architect may not be in favour of having two smaller rectangular columns side by side.When u say "move the joint to one or other side of the column", do u mean do not split the column and put the joint somewhere between beams/slabs instead and design these...

I have a circular 600 mm diameter column which may need to be halved to accommodate an expansion joint.Obviously the column will become a semi-circular column and may become slender( am i right). Which book is the best to refer to.Can anyone help ? How would I design the foundation/pilecap?

Thank U Sir. You are right I am a relatively new engineer.And I am working with a government agency, which we termed PUBLIC WORKS DEPARTMENT. I was in Manchester University ( not UMIST)doing my civil Eng degree. Just got back from the office, and used the unfactored load for the analysis.Better...

I am so sorry Dik. I did not mean to make you uncomfortable but it's just that your expert opinions and comments are very helpful.Thanks again.

Thanks a lot Qshake. Sorry Qshake, but I like to ask you again, does this mean that during major events , structures designed under this code are not expected to be resistant? I would like to request Carlbauer and IJR to chip in this thread please. Because both of you seem to be familiar with...

Chandr Isn't factored load make it more conservative? Thanx everyone. I think dik's experience tells a lot.

Thanks dik ! 58 ft seems very long.What is the spacing of these beams ?

Dear JAE and others, The CODE I am using is BS8110 (British standard). I=bdxdxd/12 where b stands for the rectangular width of the beam, in this case b=350mm and d is the effective depth of the beam =900mm in this case.The deflection I calculated was based on the ultimate (factored)load of the...

I was doing a deflection check on a 12 metre reinforced concrete simply supported beam.In the code it says compliance with the span/ effective depth ratio (20 for simply supported) will generally limit total deflections to span/250. When I checked the actual span depth ratio for a 1 metre deep...

Thanks Qshake.What sort of range in the richter scale do you mean when you say low, moderate and large?

I am not an expert. But, is it not easier to bolt the post ? Or is it going to be more expensive.

Can anybody tell me if British Standard BS8110 (reinforced concrete code of practice)is seismically compatible ? If so what sort of richter scale can it stand? I am quite sure that the code did not specifically described seismic loading. This question came to my mind because during one of the...

Thank u for the information Regards Azh

I am interested to get information/article/journal/website on structural repair works(structural and non structural)

Is it of any help if the span is halved(the connection still remains)

I am working on a bridge project which is undergoing construction. It is a three span bridge . The longest being 25 metres simply supported. This longest span is to be supported on piers (bolted on the sides of the piers) founded on a pad footing at one end and the other on bored piles.The...

Thanks very much to both carl and dik. There will be no claddings but carl gave me an idea of another problem that may crop out : at the roof level. At this level there will be metal roof sheetings.Will there be a problem ? Can Dik kindly elaborate a bit more on checkerplate material.I have...

I am designing a 4-storey school building of reinforced concrete. The building is to be 100 metres long.The climate here in BRUNEI is hot/wet with temperature range of 27 celcius to 35 celceius.(not so variablei guess). Similar to Singapore and part of Brazil.The problem with having expansion...