Hi All,
I have recently been looking at some jobs involving pumps and electric motors supported on structural steelwork. With regard to vibration of the structure, I know the general requirement is to try to ensure that the fundamental frequency of the structure is not too close to the...
I am currently looking at the effects of quarry blasting on a nearby buried pipeline. The limited info I have on this (based on work by Esparaza) gives pipe stress increases for a given charge size, type and standoff distance, and looks at "deep" and "shallow" cases. However it takes no account...
Hi All,
I have an unusual problem which I am trying to get some guidance on. I have a composite section which is being used in bending. The section comprises a glass fibre and mineral wool filled core with thin steel plates bonded either side. I am trying to establish how much buckling...
Hi All,
I am soon going to be working on the design of some steel cabin type structures, some are blast resistant cabins and some are marine cargo containers. Normal construction for both of these seems to usually comprise a rectangular box type frame with corrugated steel panels forming the...
Hi All
I'm currently trying to do a preliminary design for a steel framed shed which is to take blast loading. I can get an estimate of max displacement ok from the ASCE "Design of Blast Resistant Buildings in petrochemical facilities" book however for element forces this only gives a method...
Hi All
I'm currently trying to calculate the horizontal fundamental frequency of a diesel tank base. To simplify things I want to treat it as a shear beam with the centre of gravity of the mass at a height 'h' above underside of base. The base will not be fixed as it is just sitting on the...
